L-HISTIDINE
[Product Name]: L-HISTIDINE
[Other Name]: L-HIS, L-2-AMINO-3-(4-IMIDAZOLYL) PROPIONIC ACID, L-2-AMINO-4(5)-IMIDAZOLE PROPIONIC ACID, L-3-(4-IMIDAZOLYL) ALANINE
[Molecular Formula]: C6 H9 N3 O2
[Structural Formula]:
[Molecular Weight]: 155.15
[CAS]: 71-00-1
[EINECS]: 200-745-3
[Description]: Occurs as white crystals or as a crystalline powder. It is soluble in water, very slightly soluble in alcohol, and insoluble in ether. It melts with decomposition between about 277 ºC and 288 ºC.
[Standard]: Pharma Grade USP38 and EP8, Food grade FCCV, or according to buyer's requirements.
|
Item |
Pharma Grade (USP38) |
Food Grade (FCCV) |
Appearance |
White crystals or as a crystalline powder |
White crystals or as a crystalline powder |
Assay(on dry matter) |
98.5~101.5% |
98.5~101.5% |
Specific rotation |
+12.6º~+14.0º |
+11.5º~+13.5º(20ºC) |
Loss on drying |
NMT 0.2% |
0.2% MAX |
Residue on ignition |
NMT 0.4% |
0.2% MAX |
Chloride |
NMT 0.05% |
-- |
Sulfate |
NMT 0.03% |
-- |
Iron |
NMT 30ppm |
-- |
pH |
7.0~8.5 |
-- |
Lead |
-- |
5mg/kg MAX |
Related Compounds |
Individual impurities: NMT 0.5%
Total impurities: NMT 2.0% |
-- |
Usage: Generally used as a nutritional supplement, it is an essential amino acids to children.
Packing: In kraft paper bags or in fiber drum of 25KG net each.
Transport and Storage: Handle with cares to avoid damaging the package, protect them from sunshine or rain. Don’t transport it with poisonous or harmful goods. Stored in shaded, cool and dry places.
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