3-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-3 on the benzene ring, respectively. Since 3-methylhippuric acid (3-MHA) is a metabolite of m-xylene, the measurement of 3-MHA in urine may be correlated to a subject's level of xylene exposure.

**Synonyms:** - 3-METHYLHIPPURIC ACID - 3-MHA - Glycine, N-(3-Methylbenzoyl)- (9CI) - N-(3-Methylbenzoyl)Glycine - N-(m-Toluoyl)Glycine - m-Methylhippuric Acid - m-Toluric Acid - meta-Methylhippuric Acid