ChemicalBook--->CAS DataBase List--->141-90-2

141-90-2

141-90-2 Structure

141-90-2 Structure
IdentificationMore
[Name]

2-Thiouracil
[CAS]

141-90-2
[Synonyms]

2,3-dihydro-2-thioxo-4(1h)-pyrimidinone
2-MERCAPTO-4-HYDROXYPYRIMIDINE
2-MERCAPTO-4-PYRIMIDONE
2-THIOURACIL
4-HYDROXY-2-MERCAPTOPYRIMIDINE
4-HYDROXY-2-THIOPYRIMIDINE
DERACIL
2,3-dihydro-2-thioxo-4(1h)-pyrimidinon
2-mercapto-4(1h)-pyrimidinone
2-mercapto-4-pyrimidino
2-Mercapto-4-pyrimidinol
2-Mercaptopyrimid-4-one
2-Sulfanyl-4-pyrimidinol
2-Thio-1,3-pyrimidin-4-one
2-thio-2,4-(1h,3h)-pyrimidinedione
2-thio-4-oxo-1,3-pyrimidine
2-thio-4-oxypyrimidine
2-thio-6-oxypyrimidine
2-thio-uraci
2-TU
[EINECS(EC#)]

205-508-8
[Molecular Formula]

C4H4N2OS
[MDL Number]

MFCD00006039
[Molecular Weight]

128.15
[MOL File]

141-90-2.mol
Chemical PropertiesBack Directory
[Appearance]

white to cream fine crystalline powder
[Melting point ]

>300 °C (lit.)
[density ]

1.368 (estimate)
[refractive index ]

1.7000 (estimate)
[storage temp. ]

2-8°C
[solubility ]

7.9g/l
[form ]

Fine Crystalline Powder
[pka]

pKa 7.46 (Uncertain)
[color ]

White to cream
[Water Solubility ]

0.5 g/L
[λmax]

271nm(H2O)(lit.)
[Detection Methods]

HPLC
[Merck ]

14,9366
[BRN ]

112227
[InChIKey]

ZEMGGZBWXRYJHK-UHFFFAOYSA-N
[CAS DataBase Reference]

141-90-2(CAS DataBase Reference)
[IARC]

2B (Vol. Sup 7, 79) 2001
[NIST Chemistry Reference]

2-Thiouracil(141-90-2)
[EPA Substance Registry System]

141-90-2(EPA Substance)
Safety DataBack Directory
[Hazard Codes ]

Xn,T
[Risk Statements ]

R40:Limited evidence of a carcinogenic effect.
R45:May cause cancer.
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
[Safety Statements ]

S36/37:Wear suitable protective clothing and gloves .
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
[WGK Germany ]

3
[RTECS ]

YR1575000
[TSCA ]

Yes
[HS Code ]

29335995
[Safety Profile]

Moderately toxic by ingestion. Human teratogenic effects by unspecified routes: developmental abnormalities of the central nervous system, craniofacial area, and endocrine system. Human reproductive effects by unspecified route: effects on newborn, including viabllity index changes. Experimental teratogenic effects. Other experimental reproductive effects. Questionable carcinogen with experimental neoplastigenic and tumorigenic data. Mutation data reported. When heated to decomposition it emits very toxic fumes of NOx and SOx. Used in the treatment of hyperthyroidism, angina pectoris, and congestive heart failure. See also MERCAPTANS and KETONES.
[Hazardous Substances Data]

141-90-2(Hazardous Substances Data)
Raw materials And Preparation ProductsBack Directory
[Raw materials]

Sodium methoxide-->Thiourea-->4-AMINO-2-MERCAPTOPYRIMIDINE-->2-THIOURIDINE
[Preparation Products]

4-Hydroxypyrimidine-->4-THIOURACIL-->4-Chloro-2-(methylsulfonyl)pyrimidine-->N-(4-AMINOPYRIMIDIN-2-YL)-N-METHYLAMINE-->2-Methylthio-4-pyrimidinol-->5-BROMO-4-CHLORO-2-METHANESULFONYL-PYRIMIDINE-->5-BROMO-4-CHLORO-2-METHYLSULFANYL-PYRIMIDINE-->PYRIMIDIN-4-OL-->4-Pyrimidinol-->Pyrimidine, 4-bromo- (8CI,9CI)-->4-CHLORO-N-METHYLPYRIMIDIN-2-AMINE-->BENZYL-(2-METHYLSULFANYL-PYRIMIDIN-4-YL)-AMINE-->4-Chloro-2-methylthiopyrimidine-->DITHIOURACIL
Material Safety Data Sheet(MSDS)Back Directory
[msds information]

4-Hydroxy-2-mercaptopyrimidine(141-90-2).msds
Hazard InformationBack Directory
[Chemical Properties]

white to cream fine crystalline powder
[Uses]

antiviral, thyroid depressant
[Uses]

Reagent used in the preparation of Antithyroid agents.
[Definition]

ChEBI: A nucleobase analogue that is uracil in which the oxo group at C-2 is replaced by a thioxo group.
[Biochem/physiol Actions]

2-Thiouracil is a thio-derivative of uracil, a pyrimidine nucleobase. It acts as an anticancer, antithyroid, and antiviral agent. 2-Thiouracil is a selective melanoma-seeker and competitive inhibitor of neuronal nitric oxide synthase. It also forms complexes with transition metals such as gold (Au), Chromium (Cr), Zinc (Zn), and Silver (Ag).
[Purification Methods]

Crystallise 2-thiouracil from water or EtOH. [Beilstein 24 H 323, 24 I 315, 24 II 171, 24 III/IV 1237.]
Spectrum DetailBack Directory
[Spectrum Detail]

2-Thiouracil(141-90-2)MS
2-Thiouracil(141-90-2)1HNMR
2-Thiouracil(141-90-2)13CNMR
2-Thiouracil(141-90-2)IR1
2-Thiouracil(141-90-2)IR2
2-Thiouracil(141-90-2)Raman
Well-known Reagent Company Product InformationBack Directory
[Acros Organics]

2-Thiouracil, 99%(141-90-2)
[Alfa Aesar]

2-Thiouracil, 98%(141-90-2)
[Sigma Aldrich]

141-90-2(sigmaaldrich)
[TCI AMERICA]

2-Thiouracil,>98.0%(LC)(T)(141-90-2)
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