Cycloheximide

Merck Life Science UK Limited

Revision date : 2025-12-23

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GHS09 GHS08 GHS06
Health risk rating 5
Safety risk rating 1
Environmental risk rating 4

Note: Ingredients listed on restricted chemical lists

EC/CAS

200-636-0/66-81-9

Name of the chemical

Cycloheximid

Concentration

<= 100 %

General Information

Version

6.7

Revision date

2025-12-23

Product name

Cycloheximide

CAS No.

66-81-9

Emergency telephone

+44 (0)870 8200418

Icons in SDS

GHS06 GHS08 GHS09 M004 M009 M017

Company Information

company name

Merck Life Science UK Limited

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

TechnicalService@merckgroup.com

GHS Information

Signal word

Danger

Hazard Codes

Hazard statements (CLP)

H300, H341, H360D, H411

Hazard statements

Code

Statements

H300

Fatal if swallowed

Section 2

SECTION 2: Hazards identification

Labelling according Regulation (EC) No 1272/2008 as amended by GB-CLP Classification of the substance or mixture

Signal word

Danger Danger

Hazard statements

H300 Fatal if swallowed. H341 Suspected of causing genetic defects. H360D May damage the unborn child. H411 Toxic to aquatic life with long lasting effects. H341 Suspected of causing genetic defects. H300 Fatal if swallowed. H360D May damage the unborn child.

Precautionary statements

P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P273 Avoid release to the environment. P301 + P310 IF SWALLOWED: Immediately call a POISON CENTER/ doctor. P201 Obtain special instructions before use. P202 Do not handle until all safety precautions have been read and understood. P264 Wash skin thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P301 + P310 IF SWALLOWED: Immediately call a POISON CENTER/ doctor.

Supplemental label elements

none Restricted to professional users. Reduced Labelling (<= 125 ml) none

Other hazards

This substance/mixture contains no components considered to be either persistent, bioaccumulative and toxic (PBT), or very persistent and very bioaccumulative (vPvB) at levels of 0.1% or higher

ECOLOGICAL INFORMATION

The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.

TOXICOLOGICAL INFORMATION

The substance/mixture does not contain components considered to have endocrine disrupting properties according to REACH Article 57(f) or Commission Delegated regulation (EU) 2017/2100 or Commission Regulation (EU) 2018/605 at levels of 0.1% or higher.

2.1 Classification of the substance or mixture

Classification according to Regulation (EC) No 1272/2008 as amended by GB-CLP Regulation, UK SI 2019/720, and UK SI 2020/1567 Acute toxicity, (Category 2) H300: Fatal if swallowed. Germ cell mutagenicity, H341: Suspected of causing genetic (Category 2) defects. Reproductive toxicity, (Category H360D: May damage the unborn child. 1B) Long-term (chronic) aquatic H411: Toxic to aquatic life with long lasting hazard, (Category 2) effects.

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