China Moves to Tighten Control! Five Chemicals Proposed for Inclusion in the Catalog of Hazardous Chemicals

Recently, China's Ministry of Emergency Management (MEM) proposed adding five chemicals to the Catalog of Hazardous Chemicals. The names, CAS numbers, and hazard classifications of these five chemicals were published, and the proposal is currently in the public consultation phase.

Proposed Additions to the Catalog of Hazardous Chemicals

No.	Product Name	Alias	CAS Number	Hazard Classification	Remarks
1	3-Chloropropyne	Propargyl chloride	624-65-7	Flammable liquids, Category 2 Acute toxicity (oral), Category 3 Acute toxicity (inhalation), Category 3 Skin corrosion/irritation, Category 1B Serious eye damage/eye irritation, Category 1 Hazardous to the aquatic environment (long-term), Category 3
2	2-Iodylbenzoic acid		61717-82-6	Explosive Skin corrosion/irritation, Category 2 Serious eye damage/eye irritation, Category 2 Specific target organ toxicity - single exposure, Category 3
3	2-Diazoacetoacetic acid 4-nitrobenzyl ester		82551-63-1	Explosive
4	Methanesulfonyl azide		1516-70-7	Explosive
5	2-Nitro-3-methylbenzoic acid	2-Nitro-m-toluic acid	5437-38-7	Skin corrosion/irritation, Category 2 Serious eye damage/eye irritation, Category 2 Specific target organ toxicity - single exposure, Category 3

In China, hazardous chemicals are defined as highly toxic chemicals and other substances that possess properties such as toxicity, corrosiveness, explosiveness, flammability, or oxidizing capacity, and are hazardous to human health, facilities, and the environment. Substances listed in the Catalog of Hazardous Chemicals, or those meeting the criteria for identification as hazardous chemicals, are classified as hazardous chemicals.

According to the Regulations on the Safety Management of Hazardous Chemicals (State Council Decree 591), enterprises involved in the production, storage, use, operation, and transportation of hazardous chemicals must comply with requirements such as hazardous chemical registration and obtaining relevant permits. Therefore, once these chemicals are formally listed in the Catalog, businesses handling them will face stricter controls. CIRS will continue to monitor subsequent developments and await the latest updates.

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