Skip to main content
Skip to Main Content
CA.gov CA.gov

Official website of the State of California

Home
State of California OEHHA
Custom Google Search
    • All Environmental Topics
    • Air
    • Climate Change
    • Fish
    • Pesticides
    • Water
    • CalEnviroScreen
    • CalEcotox Database
    • About OEHHA
    • What We Do
    • Jobs
    • Programs and Reports
    • Contact Us
    • OEHHA Laws and Regulations
    • Join the Listserv
    • Meet the Executive Office
    • Organizational Chart
    • Proposition 65 Overview
    • About Proposition 65
    • The Proposition 65 List
    • Meetings, Hearings and Workshops
    • Notices
    • Law and Regulations
    • Warnings
    • Latest News
    • Events
    • Public Comments
    • Library Overview
    • Chemical Databases
    • Documents
    • Maps
    • Prop 65 Chemical List
    • Videos
  1. Home
  2. Proposition 65
  3. Chemicals Considered or Listed Under Proposition 65
  4. Methylphenidate and Its Hydrochloride (Ritalin)

Methylphenidate and its hydrochloride (Ritalin)

More information about Methylphenidate and its hydrochloride
Methylphenidate

Chemical Status

Cancer: Considered, but not listed

Notes

The CAS number for methylphenidate is 113-45-1; the CAS number for methylphenidate hydrochloride is 298-59-9.

Public Notices Related to this Chemical

  • Prioritization: 27 Chemicals Identified for Consultation with the Proposition 65 Carcinogen Identification Committee
  • Lovastatin, Phenelzine and its acid salts, Styrene, Tetrachlorvinphos, Methylphenidate and its hydrochloride: Final Data Summaries
  • Final Data Summaries and Priorities for Chemicals to be Evaluated by CIC
  • Availability of Draft Data Summaries and Draft Priorities for Chemicals With Respect to Their Potential to Cause Cancer

Meetings

  • September 21 and 22, 2010 Meeting of the Carcinogen Identification Committee
Cal EPA
Air Resources Board Cal Recycle Department of Pesticide Regulation Department of Toxic Substances Control State Water Resources Control Board
Alerts
Amber Alert Cal Alerts My Hazards
About
Governor Lt. Governor California Data
CA.gov
  • Conditions of use/Privacy Policy
  • Accessibility
  • Help
  • Sitemap
  • Facebook
  • Instagram
  • LinkIn
  • Twitter/X
Copyright © 2025 State of California