Carcinogen
| Also Known As | Carcinogenic substance, cancer-causing chemical, IARC Group 1/2A/2B agent |
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What is Carcinogen?
A carcinogen is a substance, mixture, or radiation that promotes carcinogenesis—the formation of cancer. Chemical carcinogens may act by directly damaging DNA (genotoxic carcinogens), or by promoting cell proliferation (non-genotoxic). Examples include benzene, asbestos, tobacco smoke, aflatoxins, and certain formaldehyde compounds. Carcinogens are classified by the IARC on a scale from Group 1 (confirmed) to Group 4 (probably not).
Properties & Characteristics
Uses & Applications
Safety Information
Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.
Key Facts
Frequently Asked Questions
A carcinogen is a substance, mixture, or radiation that promotes carcinogenesis—the formation of cancer. Chemical carcinogens may act by directly damaging DNA (genotoxic carcinogens), or by promoting cell proliferation (non-genotoxic). Examples include benzene, asbestos, tobacco smoke, aflatoxins, and certain formaldehyde compounds. Carcinogens are classified by the IARC on a scale from Group 1 (confirmed) to Group 4 (probably not).
Knowledge of carcinogens drives replacement chemistry, green chemistry design, workplace exposure limit (OEL/TLV) setting, and regulatory compliance (REACH, OSHA, GHS). Paradoxically, some carcinogens (alkylating agents) are used as cancer chemotherapy drugs at controlled doses.
Known chemical carcinogens (benzene, formaldehyde, asbestos, aflatoxins) must be handled using strict engineering controls, PPE, and closed-system techniques. Exposure records must be maintained. IARC, OSHA, and NTP classifications guide hazard communication and substitute chemical selection.