Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Administrative data

Description of key information

Key value for chemical safety assessment

Skin irritation / corrosion

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (corrosive)

Eye irritation

Endpoint conclusion
Endpoint conclusion:
adverse effect observed (irritating)

Additional information

Skin irritation

A limited study performed with the “mouse tail method” indicate that methanesulfonyl chloride is corrosive (Latven, 1976).

Eye irritation

0.1 ml of methanesulfonyl chloride (purity unknown) was placed in the conjunctival sac of one of each of 3 rabbits (Latven, 1977). The resulting reactions were scored for 7 days.All animals screamed in pain following instillation. Opacification of the cornea completely obscured the iris and the conjunctivae became necrotic white (dead) without chemosis. These effects appeared promptly and remained unaltered thereafter.


Effects on skin irritation/corrosion: corrosive

Effects on eye irritation: corrosive

Justification for classification or non-classification

Self-classification according to:

- Directive 67/548/EEC

R34 Causes burns.

- Regulation (EC) No 1272/2008

Skin corrosion/irritation, category 1B

serious eye damage/eye irritation, category 1