CAS NO.: 89-25-8
Molecular Formula: C10H10N2O
Molecular Weight: 174.20
Physics and chemistry nature: White or almost white crystalline powder
Use: Mainly used in cardio-cerebrovascular raw materials
Packing: Cardboard drum, net wt, 25kg/drum
Structural formula:
Specification Standard: Chinese Pharmacopoeia 2020 Edition
Item | index |
Assay: ≥% | 99.0 |
Loss on drying:≤% | 0.50 |
Residue on ignition: ≤% | 0.10 |
Heavy metal: ≤ppm | 10 |
Impurity Ⅰ: ≤% | 0.10 |
Maximum single miscellaneous: ≤% | 0.10 |
Total miscellaneous: ≤ | 0.30 |
pH | 4.5-5.5 |
Phenylhydrazine: ≤% | 0.05 |
Melting Point:℃ | 126-130 |
Any other impurity : ≤% | 0.10 |
Sum impurity : ≤% | 0.30 |