Product Name: Methotrexate hydrate
Molecular Structure:

Molecular Formula: C₂₀H₂₄N₈O₆
Molecular Weight: 472.4546
Synonyms of Methotrexate hydrate (CAS NO.133073-73-1): (+)Amethopterine hydrate ; (+)-Amethopterin hydrate ; 4-Amino-10-methylfolic acid hydrate ; Methylaminopterin hydrate ; L-4-Amino-n10-methylpteroyl-glutamic acid hydrate ; L-(+)-Amethopterin hydrate ; L-Amethopterin hydrate
CAS NO: 133073-73-1
Melting point: 195 °C  
H bond acceptors: 13
H bond donors: 7
Freely Rotating Bonds: 9
Polar Surface Area: 134.19 Å²
Flash Point: 517 °C
Enthalpy of Vaporization: 141.93 kJ/mol
Boiling Point of Methotrexate hydrate (CAS NO.133073-73-1): 931.3 °C at 760 mmHg

Hazard Codes of Methotrexate hydrate (CAS NO.133073-73-1): T
Risk Statements: 61-25-36/38 
R61: May cause harm to the unborn child. 
R25: Toxic if swallowed. 
R36/38: Irritating to eyes and skin.
Safety Statements: 53-26-36/37-45 
S53: Avoid exposure - obtain special instructions before use. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37: Wear suitable protective clothing and gloves. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: MA1225000