59-05-2 antineoplastic and antirheumatic Pharmaceuticals
Product name
Methotrexate CAS:59-05-2
Packaging, Storage &Shelf Life
Package
1kg/bag,25kg/ drum
Storage
Stored in original packaging for two years at a temperature not exceeding 40°C.
Shelf life
2 years if sealed and stored properly.
Specification
Item |
Standard |
Result |
Assay |
98.0% ~ 102.0% |
99.9% |
Appearance |
White crystalline powder |
White crystalline powder |
Melting point |
167.0℃~172.0℃ |
Complies |
Identification |
Positive reaction |
Complies |
Solution |
Conform to the requirement |
Complies |
Acidity or alkalinity |
NMT0.5ml of 0.01M NaOH |
Complies |
Appearance of solution |
Clear, NMTBY6 |
Complies |
Related substances |
Impurity A NMT0.5% Any other impurity NMT0.3% Total impurity NMT1.0% |
0.04% 0.03% 0.08% |
Organic volatile impurities |
Should complies |
Complies |
Loss on drying |
≤0.5% |
0.08% |
Residue on ignition |
≤0.1% |
0.05% |
Usage: Used as a antineoplastic and antirheumatic. A folic Acid antagonist.
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