Methotrexate (CAS 59-05-2)

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Methotrexate

CAS No. 59-05-2
甲氨蝶呤
Methotrexate structure
Chemical structure
CAS No.59-05-2
Synonyms(+)-Amethopterin; (+)-4-Amino-10-methylfolic acid; N-(p-(((2,4-Diamino-6-pteridinyl)methyl)methylamino)benzoyl)-L-glutamic acid
CategoryAnti-Rheumatism API / Anti-Rheumatism
Assay / Purity99%
Molecular FormulaC20H22N8O5
Molecular Weight454.4
Melting Point—
Boiling Point—
Density—
Flash Point—
AppearanceYellow crystalline powder

Application and positioning

Methotrexate is a folate antagonist that inhibits dihydrofolate reductase, supplied as the free acid. It is used in low-dose oral and injectable forms for rheumatoid arthritis and psoriasis, and at higher doses in oncology. Laurand supplies it from audited Chinese production partners for pharmaceutical manufacturing and process development.

Quality and documentation

  • Batch-specific Certificate of Analysis issued by the manufacturing site
  • SDS/MSDS and specification sheet available on request
  • Residual solvents and elemental impurities statements discussed per project
  • For pharmaceutical manufacturing and R&D use only — not for direct administration

Packaging and handling

  • Packed in double polyethylene-lined fibre drums; pack size confirmed at quotation
  • Small quantities in sealed aluminium foil bags
  • Palletised for air and sea freight; store dry, ventilated and protected from light

Related products

Specifications shown are indicative. The final specification and documentation package are confirmed with the quotation.

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Reference: CAS 59-05-2 · PubChem CID 126941