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A1882

Sigma-Aldrich

6-Azauridine

Synonym(s):

2-β-D-Ribofuranosyl-1,2,4-triazine-3,5(2H,4H)-dione, 6-Azauracil riboside

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About This Item

Empirical Formula (Hill Notation):
C8H11N3O6
CAS Number:
54-25-1
Molecular Weight:
245.19
EC Number:
200-199-6
MDL number:
MFCD00006472
UNSPSC Code:
41106305
PubChem Substance ID:
24890597
NACRES:
NA.51

assay

≥99% (TLC)

form

powder

mp

157-159 °C (lit.)

solubility

water: 50 mg/mL, clear, colorless

storage temp.

2-8°C

SMILES string

OC[C@H]1O[C@H]([C@H](O)[C@@H]1O)N2N=CC(=O)NC2=O

InChI

1S/C8H11N3O6/c12-2-3-5(14)6(15)7(17-3)11-8(16)10-4(13)1-9-11/h1,3,5-7,12,14-15H,2H2,(H,10,13,16)/t3-,5-,6-,7-/m1/s1

InChI key

WYXSYVWAUAUWLD-SHUUEZRQSA-N

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General description

6-Azauridine is a pyrimidine nucleoside analog.

Application

6-Azauridine (AzUrd) blocks the conversion of orotic acid into UMP and it is used in antiviral studies.
6-Azauridine has been used:
  • in uridine monophosphate synthase (UMPS) activity assay
  • as an antiviral agent to study its inhibition effect and cytotoxic potential on foot and mouth disease virus
  • to screen for anticryptosporidial activity
  • in the pretreatment of HeLa cells to study its effect on inhibition of cellular uridine synthesis before and during chase with 5-bromouridine 5′-triphosphate (BrUTP)
  • as a reference compound for comparing the antiviral activity and cytotoxic activity against viral host cell lines

Biochem/physiol Actions

6-azauridine is a prodrug, upon conversion to 6-aza-UMP, inhibits uridine monophosphate synthase (UMPS). It is a broad spectrum anti-metabolite. It interferes with pyrimidine biosynthesis and affects the cellular nucleic acid levels. It is considered as a antineoplastic metabolite. It inhibits RNA viruses like chikungunya virus, semliki forest virus, and human coronavirus. It significantly inhibits the growth of Cryptosporidium parasites.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Carc. 2

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Drug repurposing screen reveals FDA-approved inhibitors of human HMG-CoA reductase and isoprenoid synthesis that block Cryptosporidium parvum growth
Bessoff K, et al.
Antimicrobial agents and chemotherapy, 57(4), 1804-1814 (2013)
Physiologic medium rewires cellular metabolism and reveals uric acid as an endogenous inhibitor of UMP synthase
Cantor JR, et al.
Cell, 169(2), 258-272 (2017)
Jason Paragas et al.
Antiviral research, 62(1), 21-25 (2004-03-18)
Crimean-Congo hemorrhagic fever virus (CCHFV) is a tick-borne virus that is emerging as a significant human pathogen in many regions of the world, including Africa, Asia, and Europe. In this report, we describe a simple screening method for discovering new
S Briolant et al.
Antiviral research, 61(2), 111-117 (2003-12-13)
Chikungunya virus (CHIKV) and Semliki Forest virus (SFV) were used in our laboratory to screen active antiviral compounds against viruses of the Alphavirus genus. Antiviral activity was estimated by the reduction of the cytopathic effect of each alphavirus on infected
Visualisation of ribosomal RNA (rRNA) synthesis in eukaryotic cells in culture
Haukenes G and Kalland KH
Methods in Cell Science : An Official Journal of the Society for In Vitro Biology, 19(4), 295-302 (1998)
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