C4H4N2O2
112.09 g/mol
Research ReagentWarning
Uracil
CAS66-22-8EC200-621-9
Category
Research Reagent
Compound Class
Heterocycle
Primary Use
Research Compound
Uracil is one of the four nucleobases found in the nucleic acid RNA. It pairs with adenine through two hydrogen bonds, playing a fundamental role in RNA structure and function.
Laboratory reagent for RNA research
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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Related Compounds
ReferenceSame Category
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research compound
Referencestereoisomer of
URACIL-5,6-D2
CAS24897-52-7
research compound
Referencestereoisomer of
1,3,5,6-tetradeuteriopyrimidine-2,4-dione
CAS24897-55-0
research compound
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Uracil (CAS 66-22-8) 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
1H-pyrimidine-2,4-dione
InChIKey
ISAKRJDGNUQOIC-UHFFFAOYSA-N
SMILES
C1=CNC(=O)NC1=O
Synonyms (60)
- Fluorouracil impurity C, European Pharmacopoeia (EP)
- Lamivudine EP Impurity F
- Uracil (JAN/USAN)
- Uracil, United States Pharmacopeia (USP)
- Uracil; Lamivudine EP Impurity F; Fluorouracil EP Impurity C
- 1H-Pyrimidine-2,4-dione
- 1ui0
- 2,3H)-Pyrimidinedione
- 2,4(1H,3H)-Pyrimidinedione
- 2,4-Dihydroxypyrimidine
- 2,4-Dioxopyrimidine
- 2,4-Dioxypyrimidine
- 2,4-Pyrimidinediol
- 2,4-Pyrimidinediol (9CI)
- 2,4-Pyrimidinedione
- 2,6-Dihydroxypyrimidine
- 2,6-Dioxypyrimidin
- 2-Hydroxy-4(1H)-pyrimidinone
- 2-Hydroxy-4(3H)-pyrimidinone
- 2-hydroxy-4-(1H)-pyrimidione
- 2-hydroxy-4-(3H)-pyrimidione
- 4-Hydroxy-2(1H)-pyrimidinone
- 4-Hydroxyuracil
- 4-hydroxy-2-(1H)-pyrimidione
- 8h-uracil
- BMS 205603-01
- FLUOROURACIL IMPURITY C
- Fluorouracil impurity C CRS
- Hybar X
- LAMIVUDINE IMPURITY F
- Lamivudine impurity e
- Lamivudine impurity e rs
- Pirod
- Pyrod
- URACIL [MART.]
- Ura
- Uracil (8CI)
- Uracil (Standard)
- Uracil, >=99.0% (T)
- Uracyl
- Urazil
- hydroxypyrimidinone
- pyrimidine, 2,4-dihydroxy-
- pyrimidine-2,4(1H,3H)-dione
- pyrimidine-2,4-diol
- pyrimidine-2,4-dione
- uracil
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