Provenance

Reference data from EU CLP Annex VI and published regulations — verify against your supplier's SDS before use.

Build a label

Environmental hazard · Hazardous to the aquatic environment - chronic

H411 — Toxic to aquatic life with long lasting effects

Environmental hazard statements describe harm to the aquatic environment, the ozone layer or the climate. 539 substances with a harmonised EU classification carry this code.

EU CLP: currentUS OSHA HazCom: currentUS HazCom 2012: currentUN GHS: current

01 · Wording

What H411 says

Official

Toxic to aquatic life with long lasting effects.

Source

CLP Annex III · Environmental hazards

Classification
GHS09 pictogram — environment

Hazardous to the aquatic environment - chronic GHS chapter 4.1

Category 2 · pictogram GHS09 (environment)

UN GHS history

Unchanged since 2009.

Rev.3 2009
Rev.4 2011
Rev.5 2013
Rev.6 2015
Rev.7 2017
Rev.8 2019
Rev.9 2021
Rev.10 2023
Rev.11 2025
wording never changed

Present in every UN GHS edition from Rev.3 (2009) to Rev.11 (2025), with the same wording throughout.

Nine editions of the UN model text, 86 hazard statements, 19 of which ever moved. Read the full story in what changed in UN GHS Rev.11.

Where H411 is current

GHS is a United Nations model text, revised every two years, and each jurisdiction adopts a revision on its own timetable. A code can be legally current in one system and deleted in another — that is normal, not an error.

JurisdictionBasisStatus of H411
EU CLP Regulation (EC) 1272/2008 CLP Annex IV, Part 2 (consolidated) Current
US OSHA HazCom 29 CFR 1910.1200 Appendix C UN GHS Rev.7 (final rule of 20 May 2024) Current
US HazCom 2012 legacy · GHS Rev.3 UN GHS Rev.3, Annex 3 Current
UN GHS Rev.11 (2025) UN GHS Rev.11, Annex 3 Current

Currently in force under: EU CLP, US OSHA HazCom, US HazCom 2012, UN GHS. Sources: EU CLP · US OSHA HazCom · US HazCom 2012 · UN GHS

Substances carrying H411

Every entry whose harmonised CLP Annex VI classification includes this hazard statement. Substances with a reference page here open on this site; the rest open on ghssymbols.com. Of these, 94 are group entries such as “salts of picric acid” or “beryllium compounds” — Annex VI gives them no CAS number, so they are listed by Index No and have no page of their own.

539 of 539 shown

Nothing matches that filter.

All hazard statements

The full list of H-codes with the jurisdiction switch lives on the hazard statements hub. For what to do about the hazard, see precautionary statements (P-codes).

Wording quoted from the regulation named above. Substance counts come from harmonised classifications in CLP Annex VI — the statements on a real product also depend on the supplier's own classification. Always check the supplier safety data sheet.

Get the free GHS / CLP / OSHA deadline calendar

Verified 2026–2029 compliance dates in one PDF — plus alerts when the rules change.