General Information
Version
8
Revision date
2026-07-16
Product name
2-Thiouracil
Product Synonyms
4-Hydroxy-2-mercaptopyrimidine
CAS No.
141-90-2
supplier name
Fisher Scientific UK
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
Company Information
company name
Fisher Scientific UK
e-mail address of the competent person responsible for the Safety Data Sheet
begel.sdsdesk@thermofisher.com
GHS Information
Signal word
Warning
Hazard Codes
Hazard statements (CLP)
H303, H351, H411
Hazard statements
Code
Statements
H303
May be harmful if swallowed
Section 2
SECTION 2: Hazards identification
Physical State
Appearance/Odor
Powder Solid Light cream Slight Emergency Overview May be harmful if swallowed. Suspected of causing cancer. Toxic to aquatic life with long lasting effects. Classification of the substance or mixture Acute Oral Toxicity Category 5 Carcinogenicity Category 2 Chronic aquatic toxicity Category 2 Label Elements
Signal word
Warning Hazard Statements H303 - May be harmful if swallowed H351 - Suspected of causing cancer H411 - Toxic to aquatic life with long lasting effects
Prevention
P201 - Obtain special instructions before use P202 - Do not handle until all safety precautions have been read and understood P270 - Do not eat, drink or smoke when using this product P280 - Wear protective gloves/protective clothing/eye protection/face protection
Response
P301 + P312 - IF SWALLOWED: Call a POISON CENTER or doctor if you feel unwell P308 + P313 - IF exposed or concerned: Get medical advice/attention
Storage
P403 - Store in a well-ventilated place
Disposal
P501 - Dispose of contents/ container to an approved waste disposal plant
Other physicochemical hazards
None identified.
Health hazards
May be harmful if swallowed. Suspected of causing cancer.
Environmental hazards
Toxic to aquatic life with long lasting effects. Is not likely mobile in the environment due its low water solubility. Will likely be mobile in the environment due to its water solubility. The product is water soluble, and may spread in water systems. No information available This product does not contain any known or suspected endocrine disruptors.
2.1 Classification of the substance or mixture
Acute Oral Toxicity Category 5 Carcinogenicity Category 2 Chronic aquatic toxicity
