L(+)-Histidine (not of animal origin) cell culture tested, Sigma-Aldrich®
Supplier: Merck
M-Clarity™ quality level = MQ200
SIALH6034-1KGEA
1650
EUR
SIALH6034-1KG
SIALH6034-10MG
SIALH6034-25G
SIALH6034-100G
L(+)-Histidine (not of animal origin) cell culture tested, Sigma-Aldrich®
L(+)-Histidine
Meets EP, USP testing specifications
Specification Test Results
Solubility (Colour) | Colourless |
Solubility (Turbidity)-0,5 g to 10 ml, H₂O | Clear |
Identity by IR | Conforms to Structure |
Specific Rotation C = 11, 6 M HCl, 20 °C/EP | 12,0 – 12,8 |
Specific Rotation C = 11, 6 M HCl, 25 °C/USP | 12,6 – 14,0 |
Chloride (Cl) | ≤ 0,020% |
Ammonium | ≤ 0,02 % |
Sulfate | ≤ 0,020% |
Iron (Fe) | ≤ 10 ppm |
Heavy Metals | ≤ 10 ppm |
Arsenic (As) | ≤ 1 ppm |
Loss on Drying | 0,20% |
Residue on ignition (Ash) | 0,10% |
Ninhydrin-Positive Substances other amino acids | Conforms |
pH 2% in H₂O | 7,0 – 8,5 |
Assay (Dry Basis) | 98,5 – 101,0% |
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