2-Hydroxypropylmercapturic Acid

**Semantic type:** Organic Chemical

**Definition:** A modified form of acetylcysteine that is a metabolite of propylene oxide and may be found in the urine of smokers.

**Synonyms:** - (2R)-2-Acetamido-3-(2-Hydroxypropylsulanyl)Propanoic Acid - 2-HPMA - 2-Hydroxypropyl Mercapturic Acid - L-Cysteine, N-Acetyl-S-(2-Hydroxypropyl)- - N-Acetyl-S-(2-Hydroxypropyl)-Cysteine - N-Acetyl-S-(2-Hydroxypropyl)-L-Cysteine