2012年3月31日星期六

What's We Know about Taurine



Product name:Taurine
CAS:
107-35-7
Molecular Formula:C2H7NO3S
Formula Weight:125.15g/mol
Description of Taurine:
IUPAC name:2-aminoethanesulfonic acid
Taurine, or 2-aminoethanesulfonic acid, is an organic acid widely distributed in animal tissues. It is a major constituent of bile and can be found in the large intestine and accounts for approximately 0.1% of total human body weight. Taurine has many fundamental biological roles such as conjugation of bile acids, antioxidation, osmoregulation, membrane stabilization and modulation of calcium signaling. It is essential for cardiovascular function, and development and function of skeletal muscle, the retina and the central nervous system. Taurine is unusual among biological molecules in being a sulfonic acid, while the vast majority of biologically occurring acids contain the more weakly acidic carboxyl group. While taurine is sometimes called an amino acid, and indeed is an acid containing an amino group, it is not an amino acid in the usual biochemical meaning of the term, which refers to compounds containing both an amino and a carboxyl group.
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Sell High Quality P-Anisaldehyde


Product name:P-Anisaldehyde
CAS:123-11-5
Molecular Formula:C8H8O2
Formula Weight:136.15g/mol
Description of P-Anisaldehyde:
Synonym: 4-Methoxybenzaldehyde Aubépine
Boiling point:248-249°C 
Melting point:-1°C 
Density:1.121   
Assay:≥97.5% 
Natural occurrence: Vanilla, fennel, star anise, cranberry, black currant, cinnamon, basil
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4-Demethylepipodophyllotoxin at Best Sale



Product name:4-Demethylepipodophyllotoxin
CAS:6559-91-7
Molecular Formula:C21H20O8
Formula Weight:400.38g/mol
Description of 4-Demethylepipodophyllotoxin:
Synonyms:(5R,5aR,8aR,9S)-5,8,8a,9-Tetrahydro-9-hydroxy-5-(4-hydroxy-3,5-dimethoxyphenyl)-furo[3',4':6,7]naphtho[2,3-d]-1,3-dioxol-6(5aH)-one
Physical Appearance: Off-White Solid
4-Demethylepipodophyllotoxin is a potent inhibitor of microtubule assembly
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1-Butyl-3-methylimidazolium bromide Provider


Product name:1-Butyl-3-methylimidazolium bromide
CAS:85100-77-2
Molecular Formula:C8H15BrN2
Formula Weight:219.12g/mol
Description of 1-Butyl-3-methylimidazolium bromide:
Assay:>97.0% (HPLC) 
Total impurities:≤1% water 
Other Notes:Ionic liquid used in a Heck reaction
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China 1-Allyl-3-methylimidazolium bromide Supplier


Product name:1-Allyl-3-methylimidazolium bromide
CAS:31410-07-8
Molecular Formula:C7H11BrN2
Formula Weight:203.08g/mol
Description of 1-Allyl-3-methylimidazolium bromide:
Assay:≥97.0% 
Total impurities:≤1.0% water 
High quality,competitive price and good customer service
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2012年3月28日星期三

1-Hexyl-3-methylimidazolium chloride from China


Product name:1-Hexyl-3-methylimidazolium chloride
CAS:171058-17-6
Molecular Formula:C10H19ClN2
Formula Weight:202.72g/mol
Description of 1-Hexyl-3-methylimidazolium chloride:
Density:1.0337
Melting point:-85 ºC
Application:Ionic Liquids for Catalysis
Assay:≥99.0% (HPLC) 
More about:1-Hexyl-3-methylimidazolium chloride

4-Acetamido-phenylacetic acid in High Quality



Product name:4-Acetamido-phenylacetic acid
CAS:18699-02-0
Molecular Formula:C10H11NO3
Formula Weight:193.2g/mol
Description of 4-Acetamido-phenylacetic acid:
Synonyms:(4-Acetamidophenyl)acetic acid;242-511-3;Benzeneacetic acid, 4-(acetylamino)-;[4-(acetylamino)phenyl]acetic acid;4-ACETAMIDO-PHENYLACETIC ACID
Appearance:crystalline solid
Use:used as antiarthritic
More about:4-Acetamido-phenylacetic acid

Best Sale Isovaleric acid


Product name:Isovaleric acid
CAS::503-74-2
Molecular Formula:C5H10O2
Formula Weight:102.13g/mol
Description of Isovaleric acid:
Synonyms:Isopropylacetic acid; Delphinic acid; Isopropylacetic acid; 
3-Methylbutyric acid; 3-Methylbutanoic acid; beta-Methyl butyric acid; Isobutylformic acid; Isopentanoic acid; Iso C-5 Acid; Isovalerianic; 3-Methylbutyrate; Kyselina isovalerova
Physical Appearance:clear to slightly yellow liquid
Stability:Stable under ordinary conditions
Solubility in water:Soluble (25 g/l), (Soluble in alcohol, chloroform and ether)
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3-Phenoxyphenylacetic acid Provider


Product name:3-Phenoxyphenylacetic acid
CAS:32852-81-6
Molecular Formula:C14H12O3
Formula Weight:228.24g/mol
Description of 3-Phenoxyphenylacetic acid:
Physical Appearance: White to off-white powder and/or chunks
Melting Point :87-89ºC
Purity:98%
More about:3-Phenoxyphenylacetic acid online

China Supplier of 4-Biphenylacetic acid


Product name:4-Biphenylacetic acid
CAS:5728-52-9
Molecular Formula:C14H12O2
Formula Weight:212.24g/mol
Description of 4-Biphenylacetic acid:
Synonym Name:Biphenyl-4-yl-acetic acid; [1,1'-biphenyl]-4-ylacetic acid; benzeneacetic acid,
IUPAC name:2-(4-phenylphenyl)acetic acid
Appearance:white crystal
Application: Pharmaceutical Intermediates
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DL-Mandelic acid Information


Product name:DL-Mandelic acid
CAS:611-72-3
Molecular Formula:C8H8O3
Formula Weight:152.15g/mol
Description of DL-Mandelic acid:
Other name:D-mandelic acid; R-(-)-mandelic acid;L-mandelic acid; S-(+)-mandelic acid
Melting point: 117.0-120.0℃
Loss on drying: ≤0.5%
Residue on ignition: ≤0.20%
Heavy metals:≤10ppm
Assay: ≥99.0%
More about:DL-Mandelic acid online

2012年3月21日星期三

Best Supplier of 3,4-Dichlorophenylacetic acid


Product name: 3,4-Dichlorophenylacetic acid
CAS:5807-30-7
Molecular Formula:C8H6Cl2O2
Formula Weight:205.04g/mol
Description of 3,4-Dichlorophenylacetic acid:
Appearance:White to off-white powder or crystals
Use: Medicine intermediates
Content:99%
More about:3,4-Dichlorophenylacetic acid online

Export High Quality 1-Adamantanecarboxylic acid


Product name: 1-Adamantanecarboxylic acid
CAS:828-51-3
Molecular Formula:C11H16O2
Formula Weight:180.24g/mol
Description of 1-Adamantanecarboxylic acid:
Synonyms:Adamantane-1-carboxylic acid; Tricyclo[3.3.1.1(3,7)]decan-1-Carboxylic acid
EINECS:212-584-6
Melting point:172-176 ºC
Appearance:White to faint beige solid/powder
More about:1-Adamantanecarboxylic acid online

Properties of 2,2-Dimethylbutyric acid


Product name: 2,2-Dimethylbutyric acid
CAS:595-37-9
Molecular Formula:C6H12O2
Formula Weight:116.16g/mol
Description of 2,2-Dimethylbutyric acid
Appearance:clear to yellow liquid
Density:0.928
Boiling point:94-96 ºC (5 mmHg)
Decomposition:176-178 ºC
EINECS:209-865-0
More about:2,2-Dimethylbutyric acid online

(S)-(+)-Mandelic acid Supplier


Product name: (S)-(+)-Mandelic acid
CAS:17199-29-0
Molecular Formula:C8H8O3
Formula Weight:152.15g/mol
Description of (S)-(+)-Mandelic acid:
Appearance:white to light yellow crystal powder
Purity:99%
Melting point:130-134°C
More about: (S)-(+)-Mandelic acid

Benefits of Dehydroacetic acid


Product name: Dehydroacetic acid
CAS:520-45-6
Description of Dehydroacetic acid
Dehydroacetic Acid acts as a preservative, and is an ant-acid and anti-microbial agent. It is highly effective against bacteria and fungi at low concentration. It is used in a wide variety of products including sunscreens, skin care, cosmetics, bath, fragrance, shaving, hair and nail care. It is also used as an adhesive. It is nonirritant, no photosensitizing and non-phototoxic. It prevents the growth of microorganisms rather than killing them. It contains omega-3 fatty acids essential for the health of nervous system and also has anti-inflammatory property. There are no known adverse effects of this chemical
More about:Dehydroacetic acid online

Properties of DL-3-Hydroxybutyric acid sodium salt



Product name: DL-3-Hydroxybutyric acid sodium salt
CAS:150-83-4
Description of DL-3-Hydroxybutyric acid sodium salt:
Physical Appearance: White powder
Solubility: Soluble in water
Storage:Store at 4° C
Melting Point:161-167 ºC
More about:DL-3-Hydroxybutyric acid sodium salt online

Provide 3-Guanidinopropionic acid


Product name: 3-Guanidinopropionic acid
CAS:353-09-3
Molecular Formula:C4H9N3O2
Formula Weight:131.13g/mol
Description of 3-Guanidinopropionic acid:
IUPAC name:3-(Diaminomethylideneamino)propanoic acid
Analogue of creatine Analogue of GABA
Store at -20° C
Purity:99% min
More about:3-Guanidinopropionic acid online

Place to Buy Qualified 2-Butynoic acid


Product name: 2-Butynoic acid
CAS:590-93-2
Molecular Formula:C4H4O2
Formula Weight:84.07g/mol
Description of 2-Butynoic acid:
A synthon employed in a variety of reactions, including cycloacylation of phenols to flavones and chromones, and cyclization to -butyrolactones.
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Information of Propionic acid



Product name: Propionic acid
Molecular Formula:C3H6O2
Formula Weight:74.08g/mol
Description of Propionic acid:
Propionic acid is a colorless, sharp-smelling, liquid fatty acid, CHCHCOH, found in chyme and sweat, and produced from ethanol and carbon monoxide: used in making artificial flavors, perfume esters, preservatives.
Purity:99%
More about:Propionic acid online

Chemical Properties of Cyanoacetic acid


Product name: Cyanoacetic acid
CAS:372-09-8
Molecular Formula:C3H3NO2
Formula Weight:85.06g/mol
Description of Cyanoacetic acid:
Purity:69-76%
Moisture:20-31%
Melting point:65-67 ºC
Boiling point:108 ºC (15 mmHg)
Flash point:107 ºC
Water solubility:1000 g/L (20 ºC)
More about:Cyanoacetic acid online

Hot Sale Mucobromic acid


Product name: Mucobromic acid
Molecular Formula:C4H2Br2O3
Formula Weight:257.86g/mol
Description of Mucobromic acid
Purity : 99%
Storage : Keep tightly closed in a dry, well-ventilated place
Use:As a chemical intermediate
More about:Mucobromic acid online

2012年3月16日星期五

Pimelic acid Seller


Product name: Pimelic acid
CAS:111-16-0
Molecular Formula:C7H12O4
Formula Weight:160.17g/mol
Description of Pimelic acid:
Pimelic acid has been synthesized from cyclohexanone and from salicylic acid.In the former route, the additional carbon is supplied by dimethyloxalate, which reacts with the enolate.
More about:Pimelic acid

High Quality Heptafluorobutyric anhydride


Product name: Heptafluorobutyric anhydride
CAS:336-59-4
Description of Heptafluorobutyric anhydride:
Density :1.653
Melting point : -43 ºC
Boiling point  :108-111 ºC
Water solubility :Reacts
More about:Heptafluorobutyric anhydride

Provide High Quality Cyclopropanecarboxylic acid


Product name:Cyclopropanecarboxylic acid
CAS:1759-53-1
Molecular Formula:C4H6O2
Formula Weight:86.09g/mol
Description of Cyclopropanecarboxylic acid:
Synonym: CPC-acid
Appearance:Colorless to yellow liquid
More about:Cyclopropanecarboxylic acid

Trifluoroacetic acid for Promotion


Product name: Trifluoroacetic acid
CAS:76-05-1
Molecular Formula:C2HF3O2
Description of Trifluoroacetic acid:
Appearance: colorless liquid
Density :1.489 g/cm3, 20 °C
Melting point: -15.4 °C, 258 K, 4 °F
Boiling point: 72.4 °C, 346 K, 162 °F
Solubility in water:miscible
More about:Trifluoroacetic acid

Sell 3-Cyclohexylpropionic acid


Product name: 3-Cyclohexylpropionic acid
Molecular Formula:C9H16O2
Formula Weight:156.22g/mol
Description 3-Cyclohexylpropionic acid
Content:min98%
Food additives
Appearance:clear colorless to slightly yellow liquid
More about:3-Cyclohexylpropionic acid online

2012年3月14日星期三

Provide High Quality 5-Bromoindoline


Product name: 5-Bromoindoline
CAS:22190-33-6
Molecular Formula:C8H8BrN
Formula Weight:198.06g/mol
Description of 5-Bromoindoline :
Appearance:white to brown solid
Assay:97% 
More about:5-Bromoindoline

Qualified 6-Bromoindoline Supplier


Product name: 6-Bromoindoline
CAS:63839-24-7
Molecular Formula: C8H8BrN
Formula Weight:198.05982g/mol
Description of 6-Bromoindoline:
1.Purity:97%
2.Competitive Price.
More about:6-Bromoindoline online

Hot Sale Tetraoctylammonium bromide


Product name: Tetraoctylammonium bromide
CAS number:14866-33-2
EC number :238-936-9
Description of Tetraoctylammonium bromide:
Synonyms:Tetra-n-octylammonium bromide
Melting point:95-98 °C
Purity:≥98.0%
Water solubility:soluble
More about:Tetraoctylammonium bromide

Properties of Methyl trifluoromethanesulfonate


Product name: Methyl trifluoromethanesulfonate
Molecular Formula:C2H3F3O3S
Formula Weight:164.1g/mol
Description of Methyl trifluoromethanesulfonate:
Appearance :Colourless Liquid
Density :1.496 g/mL
Boiling point:100°C
Solubility:in water Hydrolyzes
Purity:98%
More about:Methyl trifluoromethanesulfonate

Tetrabutylammonium hydroxide solution Seller


Product name: Tetrabutylammonium hydroxide solution
Description of Tetrabutylammonium hydroxide solution:
Tetrabutylammonium hydroxide is the chemical compound with the formula (C4H9)4NOH, abbreviated Bu4NOH with the acronym TBAOH or TBAH.
Caution:may crystallize; can be redissolved on heating (max. 40°C)
Other Notes:Reagent suitable for use in ion chromatography
More about:Tetrabutylammonium hydroxide solution

2012年3月1日星期四

What's we know about Azetidine hydrochloride



Product name: Azetidine hydrochloride
CAS:36520-39-5
Molecular Formula:C3H8ClN
Formula Weight:93.56g/mol
Description: Basic building block for synthesizing azetidines.
Azetidine hydrochloride Preparation Products And Raw materials :
Raw materials Hydrochloric acid-->Ethyl acetate-->Methanol-->Sulfuric acid -->PETROLEUM ETHER-->Potassium carbonate-->Sodium chloride-->Palladium-->Hydrogen-->1-Butanol-->Epichlorohydrin-->Methanesulfonyl chloride-->tert-Butyl methyl ether-->1-Bromo-3-chloropropane-->Aminodiphenylmethane 
More about: Azetidine hydrochloride

Provide Good Quality 4,5-Dimethyl-2-oxo-1,3.2-dioxathiolane


Provide Good Quality 4,5-Dimethyl-2-oxo-1,3.2-dioxathiolane
Product name: 4,5-Dimethyl-2-oxo-1,3.2-dioxathiolane
Description:
CAS:4440-90-8
Formula Weight:136.16952g/mol
Purity:98%
More about:4,5-Dimethyl-2-oxo-1,3.2-dioxathiolane on line

How to Store Dipyridamole

 

Product name: Dipyridamole

How to store dipyridamole

  • Keep all medicines out of the reach and sight of children.
  • Store in a cool, dry place, away from direct heat and light.
  • If you have been supplied the modified release capsules, they should be kept in the original container until needed. Once the container has been opened the capsules must only be used for up to 6 weeks. Even if there are any remaining after this time, get a fresh supply.
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