Products name: Methotrexate
Another name: MTX Methotrexatum
Structural formula: C20H22N8O5
Molecular weight: 454.46
CAS NO: 59-05-2 
Appearance: orange yellow crystalline powder
Use: used for making anti-cancer drugs
Standard: USP26
risk: R61:;R25:;R36/38:;
safety: S53:;S26:;S36/37:;S45:;