What is Dodecyl trimethyl ammonium chloride?

Dodecyl trimethyl ammonium chloride is a kind of white solids with Molecular Formula: C15H34NCl and Molecular Weight:263.89. It is soluble in water, stable and incompatible with strong oxidizing agents. Protect Dodecyl trimethyl ammonium chloride from moisture.

Store it in a tightly closed container. Store it in a cool, dry, well-ventilated area away from incompatible substances. Store protected from moisture. It is also know as DTAC, the EINECS is 203-927-0, and CAS Registry Number is 112-00-5.

Dodecyl trimethyl ammonium chloride groups are any of a group of ammonium salts in which organic radicals have been substituted for all four hydrogens of the original ammonium cation. They has a central nitrogen atom which is joined to four organic radicals and one acid radical. 

The organic radicals  may be alkyl, aryl, or aralkyl, and the nitrogen can be part of a ring system. They are prepared by treatment of an amine with an alkylating agent. They show a variety of physical, chemical, and biological properties and most compounds are soluble in water and strong electrolytes. Such compounds include

Dodecyl trimethyl ammonium chloride is widely used in commercial and consumer applications as disinfectants, fabric softeners, hair conditioners, and emulsifying agents. The massive production and utilization of Dodecyl trimethyl ammonium chloride has led to their extensive discharge into the environment, raising concerns globally. 

Several studies have reported on potential risks and detrimental effects of this compound on the natural environment and public wastewater treatment plants. Biological treatment has been found to be an effective way to remove it and especially aerobic treatment processes can provide rapid biodegradation via a consortium of bacteria. Although extensive research has been conducted on the fate and effect of this compound, relatively little is known about their effect on aerobic biological treatment processes, especially on nitrification.

Dodecyl trimethyl ammonium chloride(CAS NO: 112-00-5) plays an important role in many industrial fields due to their versatile physico-chemical properties. Such widespread uses as disinfectants, fabric softening agents, foam depressants, and antistatic agents lead to massive discharge into the environment with its associated concerns . 

Potential risks have been reported in many previous studies that repeated exposure to Dodecyl trimethyl ammonium chloride can induce microbial resistance against antibiotics in many pathogenic microorganisms. In addition, discharge of Dodecyl trimethyl ammonium chloride can disturb the purifying activities of natural aquatic systems or public wastewater treatment plants because of their toxicity to microbial life.

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Supply 2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol

2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol is a slightly yellowish powder,with synonyms of 2-(2-Hydroxy-3,5-dipenryl-phenyl)benzotriazole;2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-phenol; Molecular Formula is C22H29N3O, Molecular Weight is 351.48516 and CAS Registry Number is 25973-55-1.

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1.AOPHARM
Updatetime:Feb 11 2014
Purity:99% Min. Order:10/Gram
DetailDesc:2-(2H-Benzotriazol-2-yl)-4,6-ditertpentylphenol CAS 25973-55-1
Tel:86-311-66600578
Address:C-2103 Wonder Business Square, 15 Yuhua West Rd

2.Hangzhou Dayangchem Co., Ltd.
Updatetime:Feb 11 2014
DetailDesc:2-(2'-Hydroxy-3',5'-di-tertamylphenyl)benzotriale (UV-328)
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

3.HUTONG GLOBAL CO.,LTD
Updatetime:Feb 10 2014
DetailDesc: Ultraviolet Absorbent UV-328 CAS Number: 25973-55-1 Molecular formula: C22H29N3O Apprearance: Light Yellow Powder Content:99%min Packing:25kgs/drum
Tel:86-22-59853797
Address:chagugang,wuqing district,Tianjin,China

4.run-biotech Co., Ltd.
Updatetime:Feb 08 2014
DetailDesc:Phenol, 2-(2H-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-
Tel:86-21-61900721
Address:Room 3-201, No.787, Kangqiao Road, Pudong New District, Shanghai, China

5.Atomax Chemicals Co.,Ltd
Updatetime:Dec 11 2013
Purity:95+% Supply Ability:g/kg 
DetailDesc:Atomax Chemicals Co.,Ltd a leading global supplier and manufacturer of chiral chemicals, amino acids, aromatic and pyridine halogens, natural extracts and pharmaceutical raw materials. we are a registered chemicals provider for most giant pharmaceutical company like Merck, Pfizer, Novartis, Roche, Astrazeneca, Sanofi-Aventis, etc.
Tel:86-755-33239182
Address:Huiji302 Hutingju Sanwei Xixiang SHENZHEN 518126, China

6.Shanghai UCHEM Inc.
Updatetime:Feb 07 2014
DetailDesc:2-(2h-benzotriazol-2-yl)-4,6-bis(1,1-dimethylpropyl)-pheno
Tel:086-021-61555264
Address:4th Floor,Build A,500Jianyun Road,Zhoupu,Pudong,Shanghai

7.Angene International Limited
Updatetime:Jan 08 2014
DetailDesc:You can find 2-(3,5-Di-Tert-Amyl-2-Hydroxyphenyl)Benzotriazole with most competitive price and high quality here. Welcome to inquire for stock confirming.
Tel:852-852-81916999
Address:4/F Silvercord Center Tower 1, 30 Canton Rd,KL,Hong Kong

8.Lotuschem
2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol
Updatetime:Jul 31 2013
Tel:852-29738324
Address:Rm. 907. JCD116 Wing Tuck Commercial Centre, 177-183 Wing Lok Street, Hong Kong

9.Tianjin Bairun International Trade Co.,Ltd
2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol
Updatetime:Nov 27 2012
Purity:99%
DetailDesc: Ultraviolet Absorbent UV-328/2-(2H-benzotriazol-z-yl)-4,6-di-tert-pentylphenol Ultraviolet Absorber UV - 328 Chemical Name 2-(2H-benzotriazol-z-yl)-4,6-di-tert-pentylphenol Chemical Formula C 22 H 29 N 3 O CAS NO. 3896-11-5 Product Intro This product is a benzotriazole ultraviolet absorber. It is one of the fine varieties of light stabil...
Tel:86-22-60889259
Address:A407-83,Building 1st Tongda Square,Tianjin Port Fr

10.Tianjin Puck Rice Chemicals Co., Ltd.
2-(2H-benzotriazol-2-yl)-4,6-di-tert-pentylphenol
Updatetime:Oct 13 2012
DetailDesc: Quick Details CAS No.: 25973-55-1 Melting Point: 80-83 C Boiling Point: 469.1 C at 760 mmHg Flash Point: 237.5 C Risk Codes: 36/37/38 Safety: 26-36 Assay: ≥ 99% Exterior: light yellow powder Package: cardboard drum inner lining plastic bag, each drum 25kg net weight Storage: UV-328 is nontoxic, uninflammable, unexplosive and incorrosive, has good storage stability.
Tel:022-58054572
Address:Weidi Road

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What do you know about Ferric sulfate?

Ferric sulfate, is the chemical compound with the formula Fe2(SO4)3, the sulfate of trivalent iron. Usually yellow, it is a rhombic crystalline salt and soluble in water at room temperature. It is used in dyeing as a mordant, and as a coagulant for industrial wastes. It is also used in pigments, and in pickling baths for aluminum and steel. Medically it is used as an astringent and styptic.

The enneahydrate, Fe2(SO4)3·9H2O, is a deliquescent rhombic crystalline salt that occurs in nature as the mineral coquimbite. It is used as a mordant in dyeing, as a coagulant for industrial wastes, in pickling baths for aluminum and steel, and in pigments. The CAS Registry Number is 10028-22-5.

Ferric sulfate is written out as Fe2(SO4)3, which means it contains a total of three naturally occurring chemical elements. Ferric sulphate is supplied as a reddish brown liquid manufactured from mined magnetic iron ore, virgin sulfuric acid, liquid oxygen, and water. Before use in its myriad industrial applications, the solution is prepared through oxidation, converting the ferrous iron within its composition into ferric iron. Stable iron concentrations in the resulting compound run up to 14%. The resulting solution can also be converted into granular form.

Ferric sulfate and jarosite have been detected by the two martian rovers Spirit and Opportunity. These substances are indicative of strongly oxidizing conditions prevailing at the surface of Mars. In May 2009, the Spirit rover became stuck when it drove over a patch of soft ferric sulfate that had been hidden under a veneer of normal-looking soil. 

Because iron sulfate has very little cohesion, the rover's wheels could not gain sufficient traction to pull the body of the rover out of the iron sulfate patch. Multiple techniques were attempted to extricate the rover, but the wheels eventually sunk so deeply into the iron sulfate that the body of the rover came to rest on the martian surface, preventing the wheels from exerting any force on the material below them. As the JPL team failed to recover the mobility of Spirit, it signified the end of the journey for the rover.

The main applications of Ferric sulfate in the industrial sector include dyeing, coagulation for pigments or industrial wastes, potable drinking water production, municipal and industrial wastewater treatment, and sludge conditioning. It works to prevent odor by eliminating hydrogen sulfide. Ferric sulfate works in a wide pH range too and decomposes at a high temperature. In other non-industrial sectors, ferric sulphate is also used to remove natural organic matter in water, such as bacteria, arsenic, and heavy metals.

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The main usages of Glyoxylic acid

Glyoxylic acid or oxoacetic acid is an organic compound. Together with acetic acid, glycolic acid, and oxalic acid, glyoxylic acid is one of the C2 carboxylic acids. It is a colourless solid that occurs naturally and is useful industrially. The Molecular Formula is C2H2O3, Molecular Weight is 74.04, and CAS Registry Number is 298-12-4.

Glyoxylic acid is a strong organic acid and a highly reactive chemical intermediate having two functional groups: the aldehyde group and the carboxylic acid group. Because of its bi-functionality is a versatile reagent in organic and fine chemicals syntheses. It is formed by organic oxidation of glyoxal with hot nitric acid, the main side product being oxalic acid. Ozonolysis of maleic acid is also effective.

The conjugate base of gloxylic acid is known as glyoxylate and is the form that the compound exists in solution at neutral pH. Glyoxylate is an intermediate of the glyoxylate cycle, which enables organisms, such as bacteria, fungi, and plants to convert fatty acids into carbohydrates. Glyoxylate is the byproduct of the amidation process in biosynthesis of several amidated peptides.Historically Glyoxylic acid (CAS NO:298-12-4) was prepared from oxalic acid electrosynthetically.

Glyoxylic acid as an alternative reducing agent for electroless copper plating was investigated. Plating rates and bath stability were superior to that of the formaldehyde bath under standard conditions. Glyoxylate ions in the plating bath have no vapor pressure and showed good reducing power in the electroless copper plating. Therefore, glyoxylic acid can replace formaldehyde, and eliminate health and environmental problems resulting from generation of the fumes.

The glyoxylic acid condensation reaction is commonly used for visual detection of biogenic amines in histological sections. This is the sucrose-phosphate-glyoxylic acid histofluorescence method for the visualization of monoamines in tissues where the fluorescence is analyzed by fluorescence microscopy. It is used for counterstaining tissues.

The glyoxilic acid derivatives were discoverd as a new class of Oomycete fungicides. The Glyoxylic acid derivatives exhibit specific activity against oomycetes, including dwony mildew on grapes and late blight on potatoes an tomatoes. They are active against Oomycetes in soil such as Phytophthora in tabacoo and citrus. They exhibit protective, curative, eradicative and antisporulant activity. The glyoxilic acid can be synthesized wih a simple synthetic approach where in the second step the glycolic acid ester is needed.

The other usages of Glyoxylic acid, such as :Material for water purificant, used in the preservation of food.Crosslinking agent of polymerization and plating additive.Starting material for the synthesis of iron chelates. Intermediate of varnish material, dyes.

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Properties and suppliers of BOC-D-Phenylalanine

BOC-D-Phenylalanine is a kind of white to off-white crystalline powder with Molecular Formula: C14H19NO4 and Molecular Weight:265.31. It has these properties: Density:1.16 g/cm3,Boiling Point:426.6 C at 760 mmHg, Melting Point: 85-88 C, Flash Point: 211.8 C,Transport Information: OTH, Hazard Symbols:Not regulated UN NO, CAS Registry Number is 18942-49-9.

BOC-D-Phenylalanine is an essential amino acid obtained in the levo form by hydrolysis of proteins. Branched amino-acids with tryptophan and phenylalanine contribute to the structure of protein by the tendency of its side chain composed only of carbon and hydrogen to participate in hydrophobic interactions which determines the tertiary structure of the peptide chain. 

In addition to its role in protein synthesis, BOC-D-Phenylalanine (CAS NO:18942-49-9) is the metabolic precursor of the non-essential amino acid tyrosine which makes hormones, such as norepinephrine and epinephrine in the normal body. The prefix nor- describes normal structure which has no branched chain of carbon atoms. But in case of norepinephrine, it has one less methylene group than its homologue, epinephrine. 

BOC-D-Phenylalanine is also converted to phenylethylamine occuring naturally in the brain to elevate mood. It is used to treat depression, inflammation, chronic pain, Parkinson's disease. BOC-D-Phenylalanine is a key intermediate to make aspartame. N-alpha-t-BOC-D-phenylalanine is used in biological research of peptidomimetics. It is used to prepare unnatural and unusual amino acids and amino acid analogs as well as to modify peptides.

Here are some suppliers of BOC-D-Phenylalanine in GUIDECHEM. Guidechem chemical B2B network provides information on china and global chemical market quotation and relative chemical Information. Guidechem Chemical Network providing the most complete information of the chemical industry.

1.Hangzhou Dayangchem Co., Ltd.
Updatetime:Feb 08 2014
DetailDesc:BOC-D-Phenylalanine
Tel:86-571-88938639
Address:B/2601 Fuli Building, 328# WenEr Rd. Hangzhou City 310012 China

2.Capot Chemical Co., Ltd.
Updatetime:Jan 27 2014
Purity:98% Min. Order:1/Kilogram Supply Ability:up to kgs Month/Kilogram
DetailDesc:265.31,C14H19NO4
Tel:86-571-85586718
Address:Joinhands Science Park, No.4028,Nanhuan Road,

3.Atomax Chemicals Co.,Ltd
Boc-D-phenylalanine
Updatetime:Dec 11 2013
Purity:95%+ Min. Order:mg/g/Gram Supply Ability:kg/T Month/Gram
DetailDesc:We are a leading global supplier and manufacturer of chiral chemicals, amino acids, aromatic and pyridine halogens, natural extracts and pharmaceutical raw materials. Those chemicals are widely used in the pharmaceutical and fine chemical industries and in research laboratories.
Tel:86-755-33239182
Address:Huiji302 Hutingju Sanwei Xixiang SHENZHEN 518126, China

4.Jinan Haohua Industry Co., Ltd.
BOC-D-Phenylalanine
Updatetime:Feb 08 2014
Purity:99 Min. Order:1/Kilogram Supply Ability:100 Year/Metric Ton
DetailDesc:N-(tert-Butoxycarbonyl)-D-phenylalanine
Tel:0086-531-58773055
Address:No.59 Gongye South RD

5.Shanghai UCHEM Inc.
Boc-D-Phenylalanine
Updatetime:Feb 07 2014
DetailDesc:Boc-D-Phenylalanine
Tel:086-021-61555264
Address:4th Floor,Build A,500Jianyun Road,Zhoupu,Pudong,Shanghai

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Invention relates to prepare 2-amino-5-nitrophenol

A process for efficiently preparing 2-amino-5-nitrophenol derivatives in which benzoxazole derivatives are subjected to nucleophilic substitution reaction at the 5 position thereof to obtain corresponding benzoxazole derivatives, and the oxazole ring of the benzoxazole derivatives is then subjected to ring-opening to obtain 2-amino-5-nitrophenol(CAS NO: 121-88-0) derivatives.

The 2-amino-5-nitrophenol derivatives are useful as industrial starting materials, reducing agents or antioxidants and intermediates for cyan-image-forming couplers.

This invention relates to a process for preparing 2-amino-5-nitrophenol derivatives and more particularly, to a process for preparing 2-amino-5-nitrophenol(CAS NO: 121-88-0) derivatives in which an appropriate nucleophilic group is introduced at the 4 position of the derivative.

2-Amino-5-nitrophenol derivatives are generalpurpose compounds for use as industrial starting materials, and can be converted into synthetic intermediates of higher added value by the reduction of the nitro group. 

The compounds have the o-aminophenol structure which may serve as a reducing agent, and the degree of reducibility can be arbitrarily controlled by the introduction of a suitable substituent and the conversion of the nitro group into another functional group. In this sense, the derivatives are important as diversity of reducing agents or antioxidants or synthetic intermediates which are convertible into physiologically active compounds by the modification of the nitrogen atom.

Moreover, 2-amino-5-nitrophenol derivatives are also important as synthetic intermediates for cyan-imageforming couplers in the field of photographic chemistry. In recent years, it has been found that 2,5-diacylaminophenol cyan-couplers show good color restoration upon development and the resulting dyes have good fastness to heat and/or humidity . 

It has been also found that dyes produced from 2-phenylureido-5-acylaminophenol cyancouplers are excellent in color restoration upon development, absorption wavelength, and fastness to heat and/or humidity. Accordingly, 2-amino-5-nitrophenol derivatives have attracted attention for use as synthetic intermediates for those couplers.

Photographic couplers may be broadly classified with respect to the hue of developed dye. They may also be stoichiometrically classified into two broad classes, i.e. 2-equivalent couplers and 4-equivalent couplers. While 4-equivalent couplers require four moles of silver halide to be developed into one mole of dye, 2-equivalent couplers have a split-off group at the coupling position thereof and can form one mole of dye using two moles of silver halide. 

For this reason, it is known that 2-equivalent couplers are more beneficial from the standpoint of silver saving. With regard to cyan-developing couplers, for instance, 2-equivalent couplers have such a high colordeveloping speed that photographic senistivity is much improved.

As explained above, 2-amino-5-nitrophenol derivatives in which substituents are introduced into the benzene ring are important as industrial starting materials, reducing agents, and intermediates for preparing cyan couplers in photographic chemistry. 

It is a primary object of the present invention to provide a process for preparing 2-amino-5-nitrophenol derivatives, into which various nucleophilic groups are introduced at the 4 position, from inexpensive, readily available starting materials.

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What is Mebendazole used for ?

Mebendazole, an antiworm medication, kills parasites. It is used to treat infestations by worms including pinworms, roundworms, tapeworms, hookworms, and whipworms. It is a benzimidazole drug developed by Janssen Pharmaceutica and marketed in the USA as a generic drug only, according to the FDA Orange Book. Mebendazole will no longer be available in the U.S. after October 2011. If you are currently taking mebendazole(CAS NO: 31431-39-7), you should talk to your doctor to discuss switching to another treatment. 

Mebendazole is a kind of white to yellowish powder, it is used to treat intestinal worm infections such as pinworm, roundworm, and hookworm. Mebendazole is a white to slightly yellow powder with a molecular weight of 295.29. It is less than 0.05% soluble in water, dilute mineral acid solutions, alcohol, ether and chloroform, but is soluble in formic acid. The CAS Registry Number is 31431-39-7.

Mebendazole belongs to the family of medicines called anthelmintics. Anthelmintics are medicines used in the treatment of worm infections. Mebendazole is used to treat: Common roundworms (ascariasis); Hookworm infections (uncinariasis); Pinworms (enterobiasis; oxyuriasis); Whipworms (trichuriasis); and More than one worm infection at a time.

Mebendazole may also be used for other worm infections as determined by your doctor. It works by keeping the worm from absorbing sugar (glucose). This gradually causes loss of energy and death of the worm. It is available only with your doctor's prescription.

It may also be used for worm infections elsewhere in the body (e.g., trichinosis). In these cases, it is usually taken more often and for a longer time.

Mebendazole comes as a chewable tablet. It usually is taken twice a day, in the morning and evening, for 3 days or as a single (one-time) dose. You may chew the tablets, swallow them whole, or crush and mix them with food. Treatment may have to be repeated in 2-3 weeks. 

Follow the directions on your prescription label carefully, and ask your doctor or pharmacist to explain any part you do not understand. Take mebendazole exactly as directed. Do not take more or less of it or take it more often than prescribed by your doctor.

It is very important to continue taking Mebendazole exactly as prescribed by your doctor. Do not skip any doses. Continue to take Mebendazole until the full prescribed amount is finished, even if symptoms disappear. Stopping Mebendazole too early may result in a return of the infection.

If you need take Mebendazole, you should pay more attention to it. Learning more health information, properties or suppliers about Mebendazole, you can access Guidechem.