Safety Reference
Danger
H301Toxic if swallowed
H315Causes skin irritation
H319
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2-methyl-3-nitrobenzoic acid
pharmaceutical intermediate
Sourcing DAMPA?
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DAMPA (deoxyaminopteroic acid) is a metabolite formed by the carboxypeptidase-mediated cleavage of methotrexate. It is used as a marker for methotrexate exposure in research and analytical settings.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for DAMPA (CAS 19741-14-1) is 2933.59.
2933.59
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
4-[(2,4-diaminopteridin-6-yl)methyl-methylamino]benzoic acid
LWCXZSDKANNOAR-UHFFFAOYSA-N
CN(CC1=CN=C2C(=N1)C(=NC(=N2)N)N)C3=CC=C(C=C3)C(=O)O