2-Methylhippuric Acid

**Semantic type:** Indicator, Reagent, or Diagnostic Aid|Organic Chemical

**Definition:** An isoform of methylhippuric acid where the methyl and glycine groups are bound to carbon-1 and carbon-2 on the benzene ring, respectively. Since 2-methylhippuric acid (2-MHA) is a metabolite of o-xylene, the measurement of 2-MHA in urine may be correlated to a subject's level of xylene exposure.

**Synonyms:** - 2-METHYLHIPPURIC ACID - 2-MHA - Glycine, N-(2-Methylbenzoyl)- (9CI) - N-(2-Methylbenzoyl)Glycine - N-(o-Toluoyl)Glycine - o-Methylhippuric Acid - o-Toluric Acid - ortho-Methylhippuric Acid