C4H3ClN2O2
146.53 g/mol
Research ReagentDanger
5-CHLOROURACIL
CAS1820-81-1EC217-339-7
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
5-Chlorouracil is an organochlorine compound derived from uracil, where a chlorine atom replaces a hydrogen at the 5-position. It is commonly used as a biochemical research reagent, particularly in studies related to nucleic acid chemistry.
Biochemical research reagentTool for studying nucleic acid analogs
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Safety Reference
Danger
H301Toxic if swallowed
H302Harmful if swallowed
H341Suspected of causing genetic defects
Customs Tariff Classification
The international HS code for 5-CHLOROURACIL (CAS 1820-81-1) is 2933.59.
HS code (international, 6-digit)
2933.59
EU CN code (8-digit)
2933 59 95
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
5-chloro-1H-pyrimidine-2,4-dione
InChIKey
ZFTBZKVVGZNMJR-UHFFFAOYSA-N
SMILES
C1=C(C(=O)NC(=O)N1)Cl
Synonyms (24)
- 5UC
- Fluorouracil EP Impurity E
- 5-CHLOROURACIL
- 5-chloro-2,4-pyrimidinedione
- CHLOROURACIL, 5-
- Fluorouracil Impurity E
- Uracil, 5-chloro-
- Uracil, 5-chloro- (VAN)
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