beauty
industrial

Chloral hydrate

CAS 302-17-0 · 100/100 · High conf.

Also registered as 2 other CAS numbers

1178760-67-2 · 109128-19-0

Concern score

100/100Critical concern based on regulatory listings.

High confidence

Chloral hydrate in plain language

What it is: Also known as Cloral hydrate · 2,2,2-Trichloroethane-1,1-diol · 1,1,1-Trichloro-2,2-dihydroxyethane · 1,1-Ethanediol, 2,2,2-trichloro- · 2,2,2-Trichlorethan-1,1-diol · 2,2,2-Trichloro-1,1-ethanediol
Show all 29 names
Ch · Chloradorm · monohydrate Chloral · Chloraldurat · Chloralhydrate · Cohidrate · Dormal · Escre · Felsules · Kessodrate · Lorinal · Noctec · Nycoton · Nycton · Oradrate · Phaldrone · Rectules · Tosyl · Trawotox · Trichloroacetaldehyde hydrate · Trichloroacetaldehyde monohydrate · celucloral · Chloralum
What it does: We don't have a plain-language description for Chloral hydrate yet.
Is it a concern?: Critical concern: no hazard classifications on record. It is banned in EU cosmetics.

Why it's flagged

2,2,2-Trichloroethane-1,1-diol is prohibited in cosmetic products under Annex II of the EU Cosmetics Regulation (EC) 1223/2009.

RestrictedEU EC — banned

The score describes this ingredient's chemical identity — its hazard profile from published classifications and regulatory status — not the safety of any product it appears in.

Regulation

Restrictions first, then routine listings from published regulatory sources.

EU Annex II — prohibited
EU prohibited in cosmetics

Recorded in these product areas

Found in consumer products
Beauty
Industrial

EUEC
Annex II of EU Cosmetics Regulation (EC) 1223/2009: substances prohibited in cosmetic products.
banned
View source →

EUCosIngActiveCosmetics Regulation annex II / ref 77.
- Cosmetics Regulation annex II / ref 77.Source →
USEPAcommercial use observedEPA CPDat observed this chemical in 14 composition records across product categories including Laboratory supplies, Personal care.
- EPA CPDat observed this chemical in 14 composition records across product categories including Laboratory supplies, Personal care.Source →
USFDAlisted in openFDA substanceopenFDA substance registry classifies this ingredient as chemical.
- openFDA substance registry classifies this ingredient as chemical.Source →

Expert safety opinions

No expert opinion on file for Chloral hydrate. These are the independent scientific bodies that assess ingredients like this one; we show an opinion only when a record we hold cites it.

SCCS
EU Scientific Committee on Consumer Safety
No SCCS opinion on file.
CIR
Cosmetic Ingredient Review (US expert panel)
No CIR safety assessment on file.

Evidence & sources

No graded research studies for Chloral hydrate yet. This record is compiled from the published data sources below — registries and regulatory listings, not study findings.

7 data sources

Where this comes from

CosIng
regulatory · updated 2026-09-23
Open →
EU CosIng Cosmetics Regulation Annexes
regulatory · updated 2010-10-15
Open →
EPA Chemical and Products Database
exposure · updated March 8, 2019
Open →
EPA DSSTox Identifiers
chemistry · updated 2025-12-29
Open →
FDA GSRS UNII
registry · updated 2026-02-26
Open →
openFDA Substance
registry · updated 2026-05-24
Open →
PubChem Live Enrichment
chemistry · updated 2026-05-17
Open →

Suitability

Context-specific fit derived from published classifications and the current ingredient evidence profile.

Fragrance avoidance

No fragrance-linked caution surfaced in the current profile.

Good fit

This ingredient does not currently read as a fragrance-linked driver in the published evidence and hazard profile.

Where it has been recorded

How often EPA CPDat has listed Chloral hydrate in a product composition. These are source records, not Greenveil catalog products.

Source records

Named organisations

Laboratory suppliesPersonal care

See products using Chloral hydrate →

Catalog

Found in these products

Their ingredient lists include Chloral hydrate; each product's own rating depends on its whole formula, so it is shown on the product page, not here.

See all 61 →Find products without it →