MsCl; Mesyl chloride

Avocado Research Chemicals Ltd

Revision date : 2026-02-17

SDS Library

Move your SDS library online today

Check Icon
Setup – Easy setup with our database of 16 million+ SDSs
Check Icon
Up-to-date – Your SDS get updated to latest versions.
Check Icon
Employee access – Tablets, Smartphones, or link from Corporate Intranet
Check Icon
Safety – One-click access to first aid information.
Check Icon
Labels – Generate Secondary Container Labels with just one click.
GHS06 GHS05
Health risk rating 5
Safety risk rating 5
Environmental risk rating 1

General Information

Version

6

Revision date

2026-02-17

Product name

MsCl; Mesyl chloride

CAS No.

124-63-0

Emergency telephone

001-800-227-6701, +32 14 57 52 11, 001-201-796-7100, +32 14 57 52 99, 001-800-424-9300, 001-703-527-3887

Icons in SDS

GHS05 GHS06 M004 M009 M010 M011 M017

Company Information

company name

Avocado Research Chemicals Ltd

e-mail address of the competent person responsible for the Safety Data Sheet

begel.sdsdesk@thermofisher.com

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H290, H301, H301+H311, H311, H314, H317, H318, H330, H335

Hazard statements

Code

Statements

H290

May be corrosive to metals

Section 2

SECTION 2: Hazards identification

CLP Classification - According to GB-CLP Regulations UK SI 2019/720 and UK SI 2020/1567 Classification of the substance or mixture GHS Classification - According to GB-CLP Regulations UK SI 2019/720 and UK SI 2020/1567

Physical hazards

Substances/mixtures corrosive to metal Category 1 (H290)

Health hazards

Acute oral toxicity Category 3 (H301) Acute dermal toxicity Category 3 (H311) Acute Inhalation Toxicity - Vapors Category 1 (H330) Skin Corrosion/Irritation Category 1 (H314) B Serious Eye Damage/Eye Irritation Category 1 (H318) Skin Sensitization Category 1 (H317) Specific target organ toxicity - (single exposure) Category 3 (H335)

Environmental hazards

Based on available data, the classification criteria are not met Full text of Hazard Statements: see section 16

Signal word

Danger

Hazard statements

H290 - May be corrosive to metals H330 - Fatal if inhaled H314 - Causes severe skin burns and eye damage H317 - May cause an allergic skin reaction H335 - May cause respiratory irritation H301 + H311 - Toxic if swallowed or in contact with skin

Precautionary statements

P304 + P340 - IF INHALED: Remove person to fresh air and keep comfortable for breathing P310 - Immediately call a POISON CENTER or doctor/physician P280 - Wear protective gloves/protective clothing/eye protection/face protection P301 + P330 + P331 - IF SWALLOWED: Rinse mouth. Do NOT induce vomiting P303 + P361 + P353 - IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with water or shower P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing

2.3 Other hazards

Lachrymator (substance which increases the flow of tears) Toxic to terrestrial vertebrates This product does not contain any known or suspected endocrine disruptors

2.1 Classification of the substance or mixture

GHS Classification - According to GB-CLP Regulations UK SI 2019/720 and UK SI 2020/1567 Physical hazards Substances/mixtures corrosive to metal Category 1 (H290) Health hazards Acute oral toxicity Category 3 (H301) Acute dermal toxicity Category 3 (H311) Acute Inhalation Toxicity - Vapors Category 1 (H330) Skin Corrosion/Irritation Category 1 (H314) B Serious Eye Damage/Eye Irritation Category 1 (H318) Skin Sensitization Category 1 (H317) Specific target organ toxicity - (single exposure) Category 3 (H335) Environmental hazards Based on available data, the classification criteria are not met Full text of Hazard Statements: see section 16

SDS Library

Move your SDS library online today

Check Icon
Setup – Easy setup with our database of 16 million+ SDSs
Check Icon
Up-to-date – Your SDS get updated to latest versions.
Check Icon
Employee access – Tablets, Smartphones, or link from Corporate Intranet
Check Icon
Safety – One-click access to first aid information.
Check Icon
Labels – Generate Secondary Container Labels with just one click.