Table 1.

Structures and identifiers relating to DiPeP mixture components, alongside the products of their esterase-mediated primary metabolism

ID	Name	Structure	CAS	Chemical form	Status
–	Diisopentyl phthalate (mixture)	See below	84777-06-0	Phthalate diester	Composition: Substance 1 (85%) Substance 2 (15%)
1	Bis(3-methylbutyl) phthalate		605-50-5	Phthalate diester	Major mixture component: May be marketed alone as diisopentyl phthalate
2	Di(2-methylbutyl) phthalate		68951-39-3	Phthalate diester	Minor mixture component
3	Monoisopentyl phthalate		17866-76-1	Phthalate monoester	Putative primary metabolite of 1
4	Isopentanol		123-51-3	Alkyl alcohol	Putative primary metabolite of 1
5	Mono(2-methylbutyl) phthalate		–	Phthalate monoester	Putative primary metabolite of 2
6	2-Methyl-1-butanol		137-32-6	Alkyl alcohol	Putative primary metabolite of 2