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Gimeracil

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Gimeracil manufacturers

  • Gimeracil
  • Gimeracil pictures
  • $29.00
  • 2026-09-10
  • CAS:103766-25-2
  • Purity: 99.86%
  • Supply Ability: 10g
  • Gimeracil
  • Gimeracil  pictures
  • $1.10
  • 2026-08-20
  • CAS:103766-25-2
  • Min. Order: 1g
  • Purity: 99.00%
  • Supply Ability: 100 Tons Min
  • Gimeracil
  • Gimeracil pictures
  • $29.00
  • 2026-04-20
  • CAS:103766-25-2
  • Purity: 99.86%
  • Supply Ability: 10g
Gimeracil Basic information
Product Name:Gimeracil
Synonyms:GIMERACIL;gimestat;5-Chloro-4-hydroxy-2(1H)-pyridinone;5-Chloro-4-hydroxy-2-pyridone;2(1H)-Pyridinone,5-chloro-4-hydroxy-(9CI);5-chloropyridine-2,4-diol;2(1H)-Pyridinone, 5-chloro-4-hydroxy-;Gimeracil,(CDHP)
CAS:103766-25-2
MF:C5H4ClNO2
MW:145.54
EINECS:1312995-182-4
Product Categories:Antitumors for Research and Experimental Use;PYRIDINE;Biochemistry;Chloropyridines;oncology;Anticancer;Halopyridines;Intermediates & Fine Chemicals;Pharmaceuticals;103766-25-2
Mol File:103766-25-2.mol
Gimeracil Structure
Gimeracil Chemical Properties
Melting point 274 °C
Boiling point 255.1±40.0 °C(Predicted)
density 1.56±0.1 g/cm3(Predicted)
storage temp. Inert atmosphere,Store in freezer, under -20°C
solubility Soluble in DMSO (up to 5 mg/ml).
form solid
pka4.50±1.00(Predicted)
color White
Stability:Stable for 1 year from date of purchase as supplied. Solutions in DMSO may be stored at -20°C for up to 3 months.
InChIInChI=1S/C5H4ClNO2/c6-3-2-7-5(9)1-4(3)8/h1-2H,(H2,7,8,9)
InChIKeyZPLQIPFOCGIIHV-UHFFFAOYSA-N
SMILESC1(=O)NC=C(Cl)C(O)=C1
CAS DataBase Reference103766-25-2(CAS DataBase Reference)
Safety Information
Safety Statements 24/25
WGK Germany WGK 3
HS Code 29337900
Storage Class11 - Combustible Solids
Hazard ClassificationsAcute Tox. 4 Oral
MSDS Information
Gimeracil Usage And Synthesis
DescriptionGimeracil (103766-25-2) is a dihydropyrimidine dehydrogenase (DPD) inhibitor. DPD is involved in the degradation of pyrimidine-based chemotherapeutic drugs such as 5-fluorouracil (5-FU). Gimeracil is used along with 5-FU or Tegafur to prolong circulating concentrations of the drugs.1,2 Gimeracil has also been shown to act as a radiosensitizer via inhibition of homologous recombination in the repair of DNA double strand breaks.3
Chemical PropertiesOff-White Solid
UsesAntitumor agent. A potent inhibitor of dihydropyrimidine dehydrogenase (DPD)
UsesGimeracil is an antitumor agent. Gimeracil is a potent inhibitor of dihydropyrimidine dehydrogenase (DPD).
UsesGimeracil is an inhibitor of dihydropyrimidine dehydrogenase, which inhibits the early step in homologous recombination for double strand breaks repair.
DefinitionChEBI: Gimeracil is an organic molecular entity.
Synthesis
3,5-Dichloropyridine-2,4-diol

103792-80-9

Gimeracil

103766-25-2

Compound 6 (8.0 g, 44 mmol) was used as a raw material, which was mixed with acetonitrile (100 mL), acetic acid (3 mL) and sodium iodide (13.2 g, 88 mmol), and the reaction was heated at 60°C for 8 hours. Upon completion of the reaction, the mixture was cooled to room temperature and poured into 10% sodium thiosulfate solution (200 mL) to precipitate a colorless solid. Purification by aqueous recrystallization afforded the target product 5-chloro-4-hydroxypyridin-2(1H)-one (Compound 2) in a yield of 5.6 g in 86%. The product characterization data were as follows: melting point 272-273 °C (literature value 273-274 °C); 1H NMR (400 MHz, DMSO-d6) δ 5.70 (s, 1H), 7.51 (s, 1H), 11.29 (br, 2H); 13C NMR (100 MHz, DMSO-d6) δ 163.5, 163.2, 134.6 , 105.6, 98.7; LRMS (ESI) m/z (%): 146 (100) [M(35Cl)+H]+, 148 (30) [M(37Cl)+H]+; HRMS (ESI) m/z calculated value of C5H535ClNO2: [M+H]+: 146.0003, measured value: 146.0012; C5H537ClNO2: [M+H]+: 147.9975, measured value: 147.9975.

in vivo

Gimeracil (2.5-25 mg/kg, orally) may inhibit the rapid repair of X-ray-induced DNA damage in tumors[3].

Animal Model:Nude mice (Lu-99, LC-11, KB/C3 and PAN-4 tumors were xenografted)[3].
Dosage:2.5-25 mg/kg.
Administration:Orally.
Result:Exhibited anti-tumor activity.
References[1] DIASIO R B. Clinical implications of dihydropyrimidine dehydrogenase inhibition.[C]//13 7 Suppl 3. 1999: 17-21.
[2] MASAO KOBAYAKAWA  Yasushi K. Tegafur/gimeracil/oteracil (S-1) approved for the treatment of advanced gastric cancer in adults when given in combination with cisplatin: a review comparing it with other fluoropyrimidine-based therapies.[J]. OncoTargets and therapy, 2011, 4: 193-201. DOI:10.2147/ott.s19059
[3] KOH-ICHI SAKATA. Gimeracil, an inhibitor of dihydropyrimidine dehydrogenase, inhibits the early step in homologous recombination[J]. Cancer Science, 2011, 102 9: 1712-1716. DOI:10.1111/j.1349-7006.2011.02004.x
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