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L-Histidine base (Ph. Eur., USP) pure, pharma grade

Assay (titr., calc. on dried subst.): 98.5 - 101.0 %
Code
A1341
CAS
71-00-1
Molecular Formula
C6H9N3O2
Masse molaire
155.16 g/mol
Solubility:
42 g/L (H2O)
Physical Description:
Solid
Product Code:
A1341
Product Name:
L-Histidine base (Ph. Eur., USP) pure, pharma grade
Headline Comment:
• All amino acids from AppliChem are of non-animal origin!
Specifications:
Assay (titr., calc. on dried subst.): 98.5 - 101.0 %
α20°C/D; 11 %, HCl 120 g/L; calc. on dried subst.: +11.4° - +12.4°
α25°C/D; 11 %, 6 M HCl; calc. on dried subst.: +12.6° - +14.0°
Appearance of solution: passes test
Identity: passes test
pH (2 %; H2O; 25°C): 7.0 - 8.5
Sulfated ash: max. 0.1 %
Loss on drying (3 h; 105°C): max. 0.2 %
Heavy metals (as Pb): max. 0.0015 %
Ammonium: max. 0.02 %
Chloride: max. 0.02 %
Sulfate: max. 0.03 %
Fe: max. 0.001 %
Ninhydrin positive substances (HPLC)
Each individual impurity: max. 0.2 %
Total impurities: max. 0.5 %
Ninhydrin positive substances (TLC)
Each individual impurity: max. 0.5 %
Total impurities: max. 2 %
WGK:
1
Storage:
RT
EINECS:
200-745-3
CS:
29332990
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