Merck 1039840005 叶酸，生物化学适用 (C₁₉H₁₉N₇O₆, 玻璃瓶 5g)
制造商: Merck Model: 1039840005 - 报价要求
- 报价要求
Price (exclude VAT) 1,677,850 VND Price (include VAT) 1,845,635 VND
CAS number: 59-30-3
EC number: 200-419-0
Hill Formula: C₁₉H₁₉N₇O₆
Molar Mass: 441.4 g/mol
Assay (HPLC, calc.on anhydrous substance): 97.0 - 102.0 %
Identity (HPLC): conforms
Identity (IR-spectrum): conforms
Absorption ratio (A₂₅₆/A₃₆₅): 2.80 - 3.00
Spec. rotation (α 20/D; 10 g/l; NaOH 0,1 mol/l; calc. on anhydrous subst.): +18 - +22 °
Related substances (HPLC, Ph Eur) (Impurity A): ≤ 0.5 %
Related substances (HPLC, Ph Eur) (Impurity D): ≤ 0.6 %
Related compounds (HPLC) (Total unspecified impurities) ≤ 1.0 %
Water (according to Karl Fischer): 5.0 - 8.5 %
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