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Diisononyl phthalate (DINP)

CAS 28553-12-0

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Also known as: dinp, diisononyl phthalate

Part of family: Phthalates

What it is + why it's regulated

Diisononyl phthalate, often called DINP, is a chemical used to make plastics flexible and durable. You'll find it in items like vinyl flooring, garden hoses, toys, and some food packaging. DINP is regulated under California Proposition 65 because it is classified as a carcinogen, meaning it can cause cancer. The California Office of Environmental Health Hazard Assessment (OEHHA) added DINP to the Proposition 65 list on December 20, 2013, based on scientific evidence showing it can lead to cancer in animals and is considered a risk to human health. This regulation requires businesses to provide clear warnings if their products expose people to DINP above certain levels. The goal is to help you make informed choices about the products you use. For more details, visit the California OEHHA Proposition 65 list at https://oehha.ca.gov/proposition-65/proposition-65-list. This summary draws on public regulatory data; the linked source is authoritative.

Authoritative source

Issuing body: California Proposition 65
Primary register: https://oehha.ca.gov/proposition-65/proposition-65-list

Always verify each fact at the primary register before acting on it.

What this is NOT

ProductGuru is an INDEX of public regulatory data, not a primary source. This page is not medical, occupational-health, or legal advice. Every claim above is drawn from the issuing-agency register linked. Inclusion in our index is not endorsement, condemnation, or hazard assessment.

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