Hóa chất L-Valine cho hóa sinh Merck 1084950100 (C₅H₁₁NO₂; Chai nhựa 100 g) DEEP52 https://yeuhangduc.vn/
3,554,018₫
Mô tả
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 %
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