What is the CAS number of Trichloroethylene?

The CAS Registry Number of Trichloroethylene is 79-01-6.

What is the chemical formula of Trichloroethylene?

Trichloroethylene has the formula C2HCl3 and a molecular weight of about 131.39 g/mol.

What are the GHS hazards of Trichloroethylene?

Trichloroethylene carries the signal word Danger. Its harmonised hazard statements are H315, H319, H336, H341, H350, H412: Causes skin irritation.; Causes serious eye irritation.; May cause drowsiness or dizziness.; Suspected of causing genetic defects.; May cause cancer.; Harmful to aquatic life with long lasting effects..

Which GHS pictograms apply to Trichloroethylene?

GHS07 (Exclamation mark), GHS08 (Health hazard).

← Chemical database

Trichloroethylene CAS 79-01-6

Trichloroethylene (CAS 79-01-6, formula C2HCl3) is an industrial chemical with a molecular weight of about 131.39 g/mol. Its harmonised GHS classification carries the signal word Danger.

Identifiers

Name: Trichloroethylene
CAS number: 79-01-6
CLP index number: 602-027-00-9
EC number: 201-167-4
Molecular formula: C2HCl3
Molecular weight: 131.39 g/mol
Also known as: TCE, Trichloroethene, Trichlorethylene, Acetylene trichloride, Ethylene trichloride, Tri

GHS classification

Harmonised classification under the CLP Regulation (Annex VI), index number 602-027-00-9. Signal word: Danger.

Hazard class	Code	Statement
Skin corrosion/irritation	H315	Causes skin irritation.
Serious eye damage/eye irritation	H319	Causes serious eye irritation.
Specific target organ toxicity, single exposure	H336	May cause drowsiness or dizziness.
Germ cell mutagenicity	H341	Suspected of causing genetic defects.
Carcinogenicity	H350	May cause cancer.
	H412	Harmful to aquatic life with long lasting effects.

Pictograms

GHS07 Exclamation mark
GHS08 Health hazard

Suppliers may classify additional hazards from their own data, so a supplier's Safety Data Sheet can list more than the harmonised entry.

Source: Regulation (EC) No 1272/2008, Annex VI, retrieved 2026-10-10. Confirm against the current consolidated text and your supplier's SDS before relying on it.

Creating a Safety Data Sheet for a product containing Trichloroethylene

If Trichloroethylene is an ingredient, record its CAS number and concentration in Section 3 and use it in the mixture classification that drives Section 2 and the label.

How to write a Safety Data Sheet · GHS mixture classification

Prepare SDS and labels in SDS Desk

Add Trichloroethylene by name or CAS number, build your product composition and export a reviewed 16-section SDS. 7-day free trial.

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Frequently asked questions

What is the CAS number of Trichloroethylene?: The CAS Registry Number of Trichloroethylene is 79-01-6.
What is the chemical formula of Trichloroethylene?: Trichloroethylene has the formula C2HCl3 and a molecular weight of about 131.39 g/mol.
What are the GHS hazards of Trichloroethylene?: Trichloroethylene carries the signal word Danger. Its harmonised hazard statements are H315, H319, H336, H341, H350, H412: Causes skin irritation.; Causes serious eye irritation.; May cause drowsiness or dizziness.; Suspected of causing genetic defects.; May cause cancer.; Harmful to aquatic life with long lasting effects..
Which GHS pictograms apply to Trichloroethylene?: GHS07 (Exclamation mark), GHS08 (Health hazard).

Other chemicals

Acetic acid CAS 64-19-7
Acetone CAS 67-64-1
Ammonia CAS 7664-41-7
Benzene CAS 71-43-2

Information is provided for general reference and is not a substitute for a supplier's Safety Data Sheet or professional advice. See our disclaimer.