Methotrexate 59-05-2 99%
Methotrexate Chemical Properties
Melting point 195°C
alpha +17~+24°(D/20℃)(c=1,Na2CO3 soln.)(calculated on the dehydrous basis)
Boiling point 561.26°C (rough estimate)
density 1.4080 (rough estimate)
refractive index 1.6910 (estimate)
Fp 11℃
storage temp. Keep in dark place,Inert atmosphere,Store in freezer, under -20°C
solubility H2O: insoluble
form powder
pka pKa 3.04/4.99(H2O,t =25,I=0.0025) (Uncertain)
Water Solubility Insoluble. <0.1 g/100 mL at 19 ºC
Sensitive Light Sensitive & Hygroscopic
Merck 14,5985
BRN 70669
Stability: Stable, but light sensitive and hygroscopic. Incompatible with strong acids, strong oxidizing agents. Store at -15C or below.
InChIKey FBOZXECLQNJBKD-ZDUSSCGKSA-N
CAS DataBase Reference 59-05-2(CAS DataBase Reference)
IARC 3 (Vol. 26, Sup 7) 1987
NIST Chemistry Reference Methotrexate(59-05-2)
EPA Substance Registry System Methotrexate (59-05-2)
Methotrexate Basic information
Treatment of cancer and rheumatoid arthritis History of discovery Immunosuppressants Pharmacological effects Pharmacokinetics Clinical application Dosage Adverse reactions and precautions Drug Interactions Chemical Properties Production method
Product Name: Methotrexate
Synonyms: METHOTREXATEFORINJECTION;sodium 4-[[4-[(2,4-diaminopteridin-6-yl)methyl-methyl-amino]benzoyl]am ino]-5-hydroxy-5-oxo-pentanoate;METHOTREXATE(N-(4-(((2,4-DIAMINO-6-PTERIDINYL)METHYLAMINO)BENZOYL)-L-GLUTAMICACID);4-Amino-N10-methylfolic acid;Glutamic acid, N-[p-[[(2,4-diamino-6-pteridinyl)methyl]methylamino]benzoyl]-, L-(+)- (8CI);L-Glutamic acid, N-[4-[[(2,4-diamino-6-pteridinyl)methyl]methylamino]benzoyl]- (9CI);L-Methotrexate;Methotrexat-Ebewe
CAS: 59-05-2
MF: C20H22N8O5
MW: 454.45
EINECS: 200-413-8
Mol File: 59-05-2.mol
Safety Information
Hazard Codes T,F
Risk Statements 61-25-36/38-46-39/23/24/25-23/24/25-11
Safety Statements 53-26-36/37-45-36/37/39-36-16
RIDADR UN 2811 6.1/PG 3
WGK Germany 3
RTECS MA1225000
F 3-8-10
TSCA Yes
HazardClass 6.1(b)
PackingGroup III
HS Code 29335995
Hazardous Substances Data 59-05-2(Hazardous Substances Data)
Toxicity LD50 oral in rat: 135mg/kg
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