$
285.00+
L-Valine，CAS: 72-18-4
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L-Valine，CAS: 72-18-4
assay | ≥99.5% |
form | powder or crystals |
optical activity | [α]20/D +27.0±0.5°, c = 5% in 5 M HCl |
impurities | insoluble matter, passes filter test≤0.3% foreign amino acids |
ign. residue | ≤0.05% |
loss | ≤0.05% loss on drying, 20 °C (HV) |
color | white |
mp | 295-300 °C (subl.) (lit.) |
solubility | 1 M HCl: 0.5 M at 20 °C, clear, colorless |
| cation traces | Al: ≤5 mg/kg As: ≤0.1 mg/kg Ba: ≤5 mg/kg Bi: ≤5 mg/kg Ca: ≤50 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 Li: ≤5 mg/kgMg: ≤5 mg/kg Mn: ≤5 mg/kg Mo: ≤5 mg/kg NH4+: ≤150 mg/kg Na: ≤100 mg/kg Ni: ≤5 mg/kg Pb: ≤5 mg/kg Sr: ≤5 mg/kg Zn: ≤5 mg/kg |
| λ | 0.5 M in 1 M HCl |
UV absorption | λ: 260 nm Amax: 0.15 |
DESCRIPTION
Protects enzymes against heat inactivation; As spacer in isotachophoresis of serum proteins; Growth requirement of various microorganisms
My Price
$285.00
Brand
DiLab
Cas No
72-18-4
Formula
(CH3)2CHCH(NH2)CO2H
MW
117.15
Purity
≥99.0%