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C9525

Sigma-Aldrich

4-Chlorouracil

≥99%

Synonyme(s) :

4-Chloro-2,6-dihydroxypyrimidine, 6-Chloro-2,4-dihydroxypyrimidine, 6-Chlorouracil

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About This Item

Formule empirique (notation de Hill):
C4H3ClN2O2
Numéro CAS:
4270-27-3
Poids moléculaire :
146.53
Numéro CE :
224-258-0
Numéro MDL:
MFCD00014595
Code UNSPSC :
41106305
ID de substance PubChem :
24893168
Nomenclature NACRES :
NA.51

Pureté

≥99%

Forme

solid

Chaîne SMILES 

[H]N1C(Cl)=CC(=O)NC1=O

InChI

1S/C4H3ClN2O2/c5-2-1-3(8)7-4(9)6-2/h1H,(H2,6,7,8,9)

Clé InChI

PKUFNWPSFCOSLU-UHFFFAOYSA-N

Application

Chlorouracil (4-Chlorouracil; 6-Chlorouracil) is a halogenated uracil that is useful in studies of the effects of halogenation on nucleic acid base-pair stability and alkali metal ion affinity.
Reaction of 6-chlorouracil with 4-(dimethylamino)pyridine, 4-methylpyridine, and pyridin-4-yl-morpholine yielded pyridinium-substituted uracils as chlorides which were converted into pyridinium uracilates by deprotonation. These heterocyclic mesomeric betaines are cross-conjugated and thus possess separate cationic (pyridinium) and anionic (uracilate) moieties. Calculations and X-ray single crystal analyses may be used to characterize these systems and to compare the salts with the betaines.

Pictogrammes

Exclamation mark
GHS07

Mention d'avertissement

Warning

Mentions de danger

H315,H319,H335

Classification des risques

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Organes cibles

Respiratory system

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 3

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

dust mask type N95 (US), Eyeshields, Gloves

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Tumor uptake of radiolabelled pyrimidine bases and pyrimidine nucleosides in animal models--V. 6-[36Cl]chlorouracil, 6-[82Br]bromouracil and 6-[123I]iodouracil.
Y W Lee et al.
International journal of nuclear medicine and biology, 11(3-4), 262-266 (1984-01-01)
Zhibo Yang et al.
Journal of the American Chemical Society, 126(49), 16217-16226 (2004-12-09)
The influence of halogenation on the properties of uracil and its noncovalent interactions with alkali metal ions is investigated both experimentally and theoretically. Bond dissociation energies of alkali metal ion-halouracil complexes, M+(XU), are determined using threshold collision-induced dissociation techniques in
Andreas Schmidt et al.
Organic & biomolecular chemistry, 4(16), 3056-3066 (2006-08-04)
Reaction of 6-chlorouracil with 4-(dimethylamino)pyridine, 4-methylpyridine, and pyridin-4-yl-morpholine yielded pyridinium-substituted uracils as chlorides which were converted into pyridinium uracilates by deprotonation. These heterocyclic mesomeric betaines are cross-conjugated and thus possess separate cationic (pyridinium) and anionic (uracilate) moieties. Calculations and X-ray
Francesca Bartoccini et al.
Organic & biomolecular chemistry, 10(44), 8860-8867 (2012-10-11)
A small library of 8-substituted 9-deazaxanthines has been prepared by late-stage diversification of an 8-bromo-9-deazaxanthine. By utilizing palladium-catalyzed cross-coupling reactions a single key precursor can be transformed into a variety of 8-substituted-9-deazaxanthine compounds. Three key 8-bromo-9-deazaxanthine intermediates were efficiently prepared
Photochemical transformation of 6-chlorouracil and some alkylated analogues.
Z Kazimierczuk et al.
Biochimica et biophysica acta, 254(2), 157-166 (1971-12-16)
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