Monoisobutyl phthalic acid is a metabolite of phthalate that is in human semen and in meconium.

30833-53-5

C12H14O4

222.24

Monoisobutyl phthalic acid

(< 1 mg/ml refers to the product slightly soluble or insoluble )
Powder: -20°C for 3 years
In solvent: -80°C for 2 years