Merck 1084950100 缬氨酸，生物化学适用 (C₅H₁₁NO₂; 塑料瓶 100 g)

CAS number: 72-18-4

EC number: 200-773-6

Hill Formula: C₅H₁₁NO₂

Molar Mass: 117.15 g/mol

Assay (perchloric acid titration): ≥ 99.0 %

Identity (IR-spectrum): passes test

Appearance: white, crystalline powder or colorless crystals

Appearance of solution (50 g/l; water): clear and colorless

Spec. rotation (α 20/D, 50 g/l, hydrochloric acid 1 mol/l): +23.8 to +24.8

Heavy metals (as Pb): ≤ 0.001 %

NH₄ (Ammonium): ≤ 0.01 %

Foreign amino acids: ≤ 0.5 %

Other ninhydrine positive substances: ≤ 0.1 %