Phenylglyoxylic acid (Benzoylformic acid) is a metabolite of ethylbenzene and styrene (EB/S) and can be used as a biomarker of exposure to EB/S in human. References: Capella KM, et al. Ethylbenzene and styrene exposure in the United States based on urinary mandelic acid and phenylglyoxylic acid: NHANES 2005-2006 and 2011-2012. Environ Res. 2019 Apr;171:101-110.

纯度：≥98%

CAS：611-73-4