Note: Ingredients listed on restricted chemical lists
EC/CAS
200-482-4/60-56-0
Name of the chemical
Thiamazole (INN)
Concentration
<= 100 %
General Information
Version
8.6
Revision date
2025-06-25
Product name
Methimazole
CAS No.
60-56-0
REACH No
A
Emergency telephone
+(358)-942419014
Icons in SDS
Company Information
company name
Merck Life Science OY
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)
H302, H317, H319, H360D, H373
Hazard statements
Code
Statements
H302
Harmful if swallowed
Section 2
SECTION 2: Hazards identification
Regulation (EC) No. 1272/2008 Classification of the substance or mixture Acute toxicity, (Category 4) H302: Harmful if swallowed Eye irritation, (Category 2) H319: Causes serious eye irritation Skin sensitisation, (Category H317: May cause an allergic skin reaction Reproductive toxicity, (Category H360D: May damage the unborn child. 1A) Specific target organ toxicity H373: May cause damage to organs repeated exposure, (Category 2), through prolonged or repeated exposure. Endocrine system
Signal word
Danger Danger
Hazard statements
H302 Harmful if swallowed. H317 May cause an allergic skin reaction. H319 Causes serious eye irritation. H360D May damage the unborn child. H373 May cause damage to organs (Endocrine system) through prolonged or repeated exposure. H317 May cause an allergic skin reaction. H360D May damage the unborn child.
Precautionary statements
P202 Do not handle until all safety precautions have been read and understood. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P312 IF SWALLOWED: Call a POISON CENTER/ doctor if you feel unwell. P302 + P352 IF ON SKIN: Wash with plenty of water. P305 + P351 + P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P313 IF exposed or concerned: Get medical advice/ attention. P202 Do not handle until all safety precautions have been read and understood. P280 Wear protective gloves/ protective clothing/ eye protection/ face protection. P302 + P352 IF ON SKIN: Wash with plenty of water. P308 + P313 IF exposed or concerned: Get medical advice/ attention.
Supplemental label elements
none 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. Caution: Physiologically highly active, therapeutically usable substance. The substance must be handled with the care required for hazardous materials.
2.1 Classification of the substance or mixture
Acute toxicity, (Category 4) H302: Harmful if swallowed. Eye irritation, (Category 2) H319: Causes serious eye irritation. Skin sensitisation, (Category 1) H317: May cause an allergic skin reaction. Reproductive toxicity, (Category H360D: May damage the unborn child. 1A) Specific target organ toxicity - H373: May cause damage to organs repeated exposure, (Category 2), through prolonged or repeated exposure. Endocrine system