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4956-05-2

4956-05-2 Structure

4956-05-2 Structure
IdentificationMore
[Name]

5-Bromo-6-azauracil
[CAS]

4956-05-2
[Synonyms]

5-BROMO-6-AZAURACIL
6-BROMO-1,2,4-TRIAZINE-3,5(2H,4H)-DIONE
6-BROMO-2,3,4,5-TETRAHYDRO-1,2,4-TRIAZINE-3,5-DIONE
6-BROMO-2H-[1,2,4]TRIAZINE-3,5-DIONE
AURORA 14997
IFLAB-BB F1207-0035
VITAS-BB TBB000521
4h)-dione,6-bromo-as-triazine-5(2h
5-BROMO-6-AZAURACIL ,97%
[Molecular Formula]

C3H2BrN3O2
[MDL Number]

MFCD00154757
[Molecular Weight]

191.97
[MOL File]

4956-05-2.mol
Chemical PropertiesBack Directory
[Melting point ]

232-234 °C
[density ]

2.61±0.1 g/cm3(Predicted)
[storage temp. ]

Inert atmosphere,2-8°C
[form ]

powder
[pka]

6.11±0.40(Predicted)
[color ]

Off-white
[InChI]

InChI=1S/C3H2BrN3O2/c4-1-2(8)5-3(9)7-6-1/h(H2,5,7,8,9)
[InChIKey]

VNTFEWXYAOATFA-UHFFFAOYSA-N
[SMILES]

N1=C(Br)C(=O)NC(=O)N1
[CAS DataBase Reference]

4956-05-2(CAS DataBase Reference)
Questions And AnswerBack Directory
[Uses]

5-Bromo-6-azouridine is mainly used as a pharmaceutical intermediate.
Safety DataBack Directory
[Symbol(GHS) ]

Exclamation Mark (GHS07)
GHS07
[Signal word ]

Warning
[Hazard statements ]

H302-H315-H319-H335
[Precautionary statements ]

P261-P305+P351+P338
[HS Code ]

2933998090
Spectrum DetailBack Directory
[Spectrum Detail]

6-Bromo-1,2,4-triazine-3,5(2H,4H)-dione(4956-05-2)1HNMR
6-Bromo-1,2,4-triazine-3,5(2H,4H)-dione(4956-05-2)FT-IR
Well-known Reagent Company Product InformationBack Directory
[Sigma Aldrich]

4956-05-2(sigmaaldrich)
Hazard InformationBack Directory
[Synthesis]

2H- [1, 2,4] triazin-3,5-dione (50 g, 442 mmol) is placed in 60 ml of bromine in 800 ml of water at 60°C for 10 h. The reaction medium is then run slowly onto an aqueous ammonia solution until pH = 5. It is then extracted with ethyl acetate and the organic phases are dried over MgS04. After filtration and concentration to dryness, 6-Bromo-1,2,4-triazine-3,5(2H,4H)-dione is isolated as a white solid (79.2 g, yield = 93 percent).
[References]

[1] Patent: WO2005/80354, 2005, A1. Location in patent: Page/Page column 19
[2] Patent: US2008/167313, 2008, A1. Location in patent: Page/Page column 7
[3] Patent: WO2004/74266, 2004, A1. Location in patent: Page 52
[4] Patent: WO2006/15985, 2006, A1. Location in patent: Page/Page column 62
[5] Bioorganic and Medicinal Chemistry Letters, 2017, vol. 27, # 8, p. 1727 - 1730
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