Deoxyaminopteroic Acid

**Semantic type:** Organic Chemical

**Definition:** A metabolite resulting from the carboxypeptidase-mediated cleavage of methotrexate. Deoxyaminopteroic acid can be used a marker for methotrexate exposure.

**Synonyms:** - 2,4-Apa - 2,4-Diamino-N(10)-methylpteroic Acid - 4-(((2,4-Diaminopteridin-6-yl)methyl)(methyl)amino)benzoic Acid - 4-Amino-4-deoxy-N-10-methylpteroic Acid - 4-Amino-4-deoxy-N-10-methylpteroic Acid Hydrochloride (2:1) - 4-Deoxy-4-amino-N(10)-methylpteroic Acid - DAMPA - N-10-methyl-4-deoxy-4-aminopteroate