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L-Histidine CAS Number:71-00-1
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| Post Date: | May 29,2013 |
| Expiry Date: | May 29,2014 |
| Detailed Description: |
Cas No. :71-00-1
Quantity: 20Metric Tons Specs:99.0% to 101.0% Payment Method: TT/LC L-Histidine CAS Number:71-00-1 Pharmaceutical raw material Food Grade Amino Acids L-Histidine for biochemical reagents Abbreviation: L-His CAS Number: 71-00-1 Conforms To: USP, EP Chemical Name: (S)-2-Amino -1H-imidazole-4 -propionic Acid Chemical Formula: C6H9N3O2 Molecular Weight: 155.15 Nitrogen Content: 0.2708 Assay: 98.5 to 101.0% Solubility: Soluble in water Property: White crystals or crystalline powder; slightly bitter taste L-histidine is one of the 10 essential amino acids for infants. Most lists of amino acids classify L-histidine as an essential amino acid; however, it has never been clear if L-histidine is an essential amino acid for adults. Even though L-histidine is synthesized by the body, sufficient quantities may not be made to meet the physiological requirements imposed by certain stress or disease situations. L-histidine plays a key role in production of red and white blood cells. It has been reported that rheumatoid arthritis sufferers have abnormally low blood levels of L-histidine. A pilot clinical study with RA patients show mixed results but still enough to warrant further research. Applications: L-histidine is a semi-essential amino acids. It is particularly important for the growth of infants and young children and animals. It can be used to produce biochemical reagents and drugs for heart disease, anemia, rheumatoid arthritis, etc. Specifications: Item Specification( AJI92) Results Identification As per AJI92 Conforms Appearance White crystals or crystalline powder powdercrystalline White crystalline powder Stata of solution (transmittance) Clear and colorless Not less than 98.0% 98.5% Specific rotation [α]D20 +12.0°to +12.8° +12.3° Chloride(Cl) Not more than 0.020% Less than 0.02% Ammonium (NH4) Not more than 0.02% Less than 0.02% Sulfate(SO4) Not more than 0.020% Less than 0.02% Iron(Fe) Not more than 10ppm Less than 10ppm Other amino acids Conforms Conforms Heavy metals(Pb) Not more than 10ppm Less than 10ppm Loss on drying Not more than 0.2% 0.12% Residue on ignition (sulfated) Not more than 0.10% 0.04% Assay 99.0% to 101.0% 99.64% PH 7.0 to 8.5 7.7 |
| CAS Registry Number: | 71-00-1 |
| Synonyms: | ;L-Histidine,free base;L-HIS = H-His-OH;(S)-2-Amino-3-(4-imidazolyl)propionic acid~H-His-OH;L-Histidine Base;H-His-OH;His;L-[+]-Histidine;Histidine; |
| Molecular Formula: | C6H9N3O2 |
| Molecular Weight: | 308.2932 |
| Molecular Structure: | 
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| Safety Description: | S24/25:; |
| Company: | Yuancheng Pharmaceutical Co., Ltd Hubei [ China ] |
| Contact: | Lupin |
| Tel: | +862768886724 |
| Fax: | +862788048077-899 |
| Email: | ycgsales02@ycphar.com |
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