L-組氨酸鹽酸 98.5% EP級 -500g|Scharlau

L-Histidine hydrochloride 1-hydrate 98.5%, extra pure, Ph Eur, BP

CAS:5934-29-2

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貨號: SAL-HI04050025 分類:

描述

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Identification
C6H9N3O2·HCl·H2O
M = 209,63 g/mol
CAS [5934-29-2]
EC number: 211-438-9
Taric code: 2933 21 00
Synonyms
(S)-a-Amino-1H-imidazole-4-propanoic acid
Applications
in biochemistry, for pharmaceuticals synthesizing, in pharma industry.
Specifications
assay (argentometric, on dried sample) ………………………………..98,5 – 101 %
identity (IR-spectrum)……………………………..passes test
appearance of solution……………………………passes test
specific rotation ([a]20°/D, c = 11,HCl 6 mol/l)……………………………………………+ 9,2 º – + 10,6 °
pH (5 %, H2O)……………………………………….3,0 – 5,0
sulfates (SO4) ……………………………………….max. 0,03 %
ammonium (NH4)…………………………………..max. 0,02 %
heavy metals (as Pb)………………………………max. 0,001 %
iron (Fe)………………………………………………..max. 0,001 %
ninhydrin-positive substances…………………..max. 0 5 %
residue on ignition…………………………………..max. 0,1 %
loss on drying (150 °C) …………………………..7 – 10 %
Residual solvents are analysed
according to guideline
CPMP/ICH/283/95.

Physical data
• Bulk density: ~ 770 kg/m3
• Solub. in water: (20 ºC): 169,9 g/l
• Melting point: 259 ºC (decomposes)
• pH(100 g/l H2O, 20 ºC) 3,5 – 4,5
Toxicological data
• WGK: 0
Transport/storage
• Store between 5ºC and 30ºC

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