The Proposition 65 List

Current Proposition 65 List

The current Proposition 65 list is available on-line below, as a pdf or Excel download or through WestLaw. The Excel document also includes the listing mechanism for each chemical listing and the safe harbor level, if one has been adopted. A hyperlink is provided for those chemicals for which the basis for listing documentation is available electronically.

What types of chemicals are on the Proposition 65 list?

The list contains a wide range of naturally occurring and synthetic chemicals that are listed for cancer or reproductive harm, or both. These chemicals include additives or ingredients in pesticides, common household products, food, drugs, dyes, or solvents. Listed chemicals may also be used in manufacturing and construction, or they may be byproducts of chemical processes, such as motor vehicle exhaust. Learn how chemicals are added to the list.

Proposition 65 List

Chemical Name Type of Toxicity (Date Listed) & Basis for Listing
Melphalan Cancer (02/27/1987)

Labor Code

Developmental Toxicity (07/01/1990)

Formally Required

Menotropins Developmental Toxicity (04/01/1990)

Formally Required

Mepanipyrim Cancer (07/01/2008)

Authoritative Bodies-US Environmental Protection Agency

Meprobamate Developmental Toxicity (01/01/1992)

Formally Required

2-Mercaptobenzothiazole Cancer (10/27/2017)

Labor Code-International Agency for Research on Cancer

Mercaptopurine Developmental Toxicity (07/01/1990)

Formally Required

Mercury and Mercury Compounds Developmental Toxicity (07/01/1990)

Authoritative Bodies-US Environmental Protection Agency

Merphalan Cancer (04/01/1988)

State's Qualified Experts

Mestranol Cancer (04/01/1988)

State's Qualified Experts

Metam Potassium Cancer (12/31/2010)

Authoritative Bodies-US Environmental Protection Agency

Methacycline Hydrochloride Developmental Toxicity (01/01/1991)

Formally Required

Metham Sodium Cancer (11/06/1998)

Authoritative Bodies-US Environmental Protection Agency

Developmental Toxicity (05/15/1998)

Authoritative Bodies-US Environmental Protection Agency

Methanol Developmental Toxicity (03/16/2012)

Authoritative Bodies-National Toxicology Program

Methazole Developmental Toxicity (12/01/1999)

Authoritative Bodies-US Environmental Protection Agency

Methimazole Developmental Toxicity (07/01/1990)

Formally Required

Methotrexate Developmental Toxicity (01/01/1989)

State's Qualified Experts

Methotrexate Sodium Developmental Toxicity (04/01/1990)

Formally Required

8-Methoxypsoralen with ultraviolet A therapy Cancer (02/27/1987)

Labor Code

5-Methoxypsoralen with ultraviolet A therapy Cancer (10/01/1988)

State's Qualified Experts

Methyl acrylate Cancer (12/17/2021)

Labor Code-International Agency for Research on Cancer

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