Impurities
AY-0392-002
Methotrexate EP Impurity B
C19H20N8O5
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Impurity reference standard material
Methotrexate EP Impurity E
Material overview
Methotrexate EP Impurity E (AY-0392-003) — impurity reference standard material. CAS 19741-14-1, formula C15H15N7O2, molecular weight 325.33 g/mol. Request technical documentation and current availability.
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Technical identifiers
- Catalog number
- AY-0392-003
- CAS number
- 19741-14-1
- Molecular formula
- C15H15N7O2
- Molecular weight
- 325.33 g/mol
- Category
- Impurity reference standard material
- Chemical name
- 4-[(2,4-diaminopteridin-6-yl)methyl-methylamino]benzoic acid
- Synonyms
- Methotrexate Related Compound E (USP)
- SMILES
- CN(CC1=CN=C2C(=N1)C(=NC(=N2)N)N)C3=CC=C(C=C3)C(=O)O
- Appearance
- Brownish Yellow to Orange Solid
- Light sensitive
- No
- Hygroscopic
- No
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Storage
Refrigerator
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