L-гистидин, pure Ph. Eur., USP, AppliChem, 100 г
4 274 руб.
Наличие: Срок поставки 15-90 дней
- Производитель: AppliChem
- Каталожный номер:
A1341,0100 - CAS номер : 71-00-1
L- Histidine base pure Ph. Eur., USP
Synonym |
L-2-Amino-3-(imidazolyl-4)-propionic Acid, |
Solubility (25°C) Melting range |
42 g/L (H 2 O) 270 - 275°C (dec.) |
Formula M CAS-No.: HS-No.: EC-No.: |
C 6 H 9 N 3 O 2 155.16 g/mol 71-00-1 29332990 200-745-3 |
Storage: LGK: |
RT 10 - 13 |
WGK: |
nwg |
Specification Assay (titr., calc. on dried subst.) α20°C/D;11 %, HCl 120 g/L; calc. on dried subst. α25°C/D;11 %, 6 M HCl; calc. on dried subst. pH (2 %; H 2 O; 25°C) Heavy metals (as Pb) Sulfated ash Loss on drying (3 h; 105°C) Ninhydrin positive substances Ammonium Chloride Sulfate Fe |
98.5 - 101.0 % +11.4° - +12.4° +12.6° - +14.0° 7.0 - 8.5 max. 0.001 % max. 0.1 % max. 0.2 % max. 0.5 % max. 0.02 % max. 0.02 % max. 0.03 % max. 0.001 % |
Характеристики реактива | |
Фасовка | 100 г |