ECHA Opens Public Consultation on Harmonised Classification and Labelling (CLH) Proposals for 7 Substances

Apr 22, 2026

CLH

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From March to April 2026, the European Chemicals Agency (ECHA) launched a public consultation on harmonised classification and labelling (CLH) proposals for seven substances, with a 60-day comment period.

Name	EC NO.	CAS NO.	Hazard classes open for commenting	Deadline for commenting
1H-benzotriazole [1] and its inorganic salts, with the exception of those specified elsewhere in this Annex	202-394-1 [1]	95-14-7 [1]	Acute toxicity - inhalation Acute toxicity - dermal Acute toxicity - oral Germ cell mutagenicity Carcinogenicity Reproductive toxicity Specific target organ toxicity – repeated exposure Hazardous to the aquatic environment Endocrine disruptor for the environment PMT/vPvM	04/05/2026
hydrochloric acid ... %	231-595-7	-	Explosive Flammable liquid Self-reactive substance or mixture Pyrophoric liquid Self-heating substance or mixture Substance or mixture which in contact with water emits flammable gas Oxidising liquid Substance or mixture corrosive to metals Acute toxicity - inhalation Acute toxicity - dermal Acute toxicity - oral Skin corrosion/irritation Serious eye damage/eye irritation Respiratory sensitisation Skin sensitisation Germ cell mutagenicity Carcinogenicity Reproductive toxicity Specific target organ toxicity - single exposure Specific target organ toxicity - repeated exposure	18/05/2026
maleic acid; (2Z)-but-2-enedioic acid	203-742-5	110-16-7	Acute toxicity - oral Skin corrosion/irritation Serious eye damage/eye irritation	22/06/2026
methyl-1H-benzotriazole [1] and its inorganic salts, with the exception of those specified elsewhere in this Annex	249-596-6 [1]	29385-43-1 [1]	Acute toxicity - inhalation Acute toxicity - dermal Acute toxicity - oral Carcinogenicity Germ cell mutagenicity Reproductive toxicity Specific target organ toxicity – repeated exposure Hazardous to the aquatic environment PMT/vPvM	04/05/2026
sulphuryl difluoride; sulfuryl difluoride	220-281-5	2699-79-8	Flammable gases Oxidising gases Gases under pressure Self-reactive substances and mixtures Acute toxicity - inhalation Acute toxicity - dermal Acute toxicity - oral Skin corrosion/irritation Serious eye damage/eye irritation Respiratory sensitisation Skin sensitisation Germ cell mutagenicity Carcinogenicity Reproductive toxicity Specific target organ toxicity — single exposure Specific target organ toxicity — repeated exposure Hazardous to the aquatic environment Hazardous for the ozone layer	18/05/2026
Swinglea glutinosa (Rutaceae) leaves extract using ethanol and water	-	-	Explosives Flammable liquids Self-reactive substances Pyrophoric liquids Self-heating substances Substances which in contact with water emit flammable gases Oxidising liquids Organic peroxides Corrosive to metals Carcinogenicity Germ cell mutagenicity Reproductive toxicity Acute toxicity - inhalation Acute toxicity - dermal Acute toxicity - oral Skin corrosion/irritation Serious eye damage/eye irritation Respiratory sensitisation Skin sensitisation Specific target organ toxicity – single exposure Specific target organ toxicity – repeated exposure Aspiration hazard Hazardous to the aquatic environment Hazardous to the ozone layer	22/06/2026
tebufenpyrad (ISO); N-(4-tertbutylbenzyl)-4-chloro-3-ethyl-1-methyl-1H-pyrazole-5-carboxamide	-	119168-77-3	Explosives Flammable solids Self-reactive substances Pyrophoric solids Self-heating substances Substances or mixtures which in contact with water emit flammable gases Oxidising solids Corrosive to metals Acute toxicity – inhalation Acute toxicity – dermal Acute toxicity - oral Skin corrosion/irritation Serious eye damage/eye irritation Respiratory sensitisation Skin sensitisation Germ cell mutagenicity Carcinogenicity Reproductive toxicity Specific target organ toxicity — single exposure Specific target organ toxicity — repeated exposure Aspiration hazard Hazardous to the aquatic environment Hazardous for the ozone layer	04/05/2026

The CLH process aims to ensure consistency and transparency of chemical hazard information across Europe. The procedure includes assessing the hazardous properties of chemical substances, proposing appropriate classifications and labelling, collecting public comments, and final review and recommendations by ECHA's Committee for Risk Assessment (RAC).

Further Information

ECHA

Related Inventories

EC Inventory: EINECS/ELINCS/NLP

EU REACH Substances of Very High Concern (SVHC) List

EU REACH Restricted Substances List (Annex XVII)

EU List of Approved Biocidal Active Substances (BPR)

EU List of CMR Substances

ECHA Launches Public Consultation on Scientific Evidence for Five Occupational Exposure Limits (OELs)

ECHA Publishes Scientific Report on Occupational Exposure Limits for Lithium Compounds

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