53320
L-Histidine
≥99.0% (NT)
Synonym(s):
(S)-2-Amino-3-(4-imidazolyl)propionic acid, NSC 137773
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About This Item
assay
≥99.0% (NT)
optical activity
[α]20/D −39±1°, c = 2% in H2O
impurities
≤0.5% foreign amino acids
ign. residue
≤0.1% (as SO4)
loss
≤0.5% loss on drying, 110 °C
mp
282 °C (dec.) (lit.), ~285 °C (dec.)
anion traces
chloride (Cl-): ≤100 mg/kg, sulfate (SO42-): ≤100 mg/kg
cation traces
Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤50 mg/kg, Mg: ≤5 mg/kg, Mn: ≤5 mg/kg, NH4+: ≤500 mg/kg, Na: ≤50 mg/kg, Ni: ≤5 mg/kg, Pb: ≤5 mg/kg, Zn: ≤5 mg/kg
SMILES string
N[C@@H](Cc1c[nH]cn1)C(O)=O
InChI
1S/C6H9N3O2/c7-5(6(10)11)1-4-2-8-3-9-4/h2-3,5H,1,7H2,(H,8,9)(H,10,11)/t5-/m0/s1
InChI key
HNDVDQJCIGZPNO-YFKPBYRVSA-N
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Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Eyeshields, Gloves, type N95 (US)
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