1,2-dihydroxyphenanthrene-3-carboxylic acid
Chemical Formula: C15H10O4
Molecular Weight: 254.2410
m/z: 254.0579 (100.0%), 255.0613 (16.2%), 256.0646 (1.2%)
Elemental Analysis: C, 70.86; H, 3.96; O, 25.17