ChemicalBook > CAS DataBase List > 2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE

2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE

Product Name
2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE
CAS No.
155-12-4
Chemical Name
2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE
Synonyms
Abemaciclib Impurity 36;2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE;2-Chloro-5-fluoro-pyrimidin-4-ol;2-Chloro-5-fluoro-4-pyrimidinone;2-Chloro-5-fluoropyriMidin-4(3H)-one;2-Chloro-5-fluoro-3H-pyriMidin-4-one;2-chloro-5-fluoro-1H-pyrimidin-6-one;2-Chloro-5-fluoro-4(3H)-pyrimidinone;2-Chloro-5-fluoro-1H-pyriMidine-6-one;2-Chloro-4-hydroxy-5-fluoropyrimidine
CBNumber
CB3842175
Molecular Formula
C4H2ClFN2O
Formula Weight
148.52
MOL File
155-12-4.mol
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2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE Property

Melting point:
176-177 °C(Solv: ethanol (64-17-5))
Density 
1.70±0.1 g/cm3(Predicted)
storage temp. 
under inert gas (nitrogen or Argon) at 2-8°C
form 
powder to crystal
pka
4.48±0.50(Predicted)
color 
White to Light yellow
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Safety

HS Code 
29335990
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H332Harmful if inhaled

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TCI Chemical
Product number
C3381
Product name
2-Chloro-5-fluoro-4-pyrimidinone
Purity
>98.0%(T)
Packaging
1g
Price
$91
Updated
2024/03/01
TCI Chemical
Product number
C3381
Product name
2-Chloro-5-fluoro-4-pyrimidinone
Purity
>98.0%(T)
Packaging
5g
Price
$307
Updated
2024/03/01
TRC
Product number
C585220
Product name
2-Chloro-5-fluoropyrimidin-4-one
Packaging
1g
Price
$75
Updated
2021/12/16
Usbiological
Product number
295630
Product name
2-Chloro-4-hydroxy-5-fluoropyrimidine
Packaging
10g
Price
$991
Updated
2021/12/16
Matrix Scientific
Product number
072662
Product name
2-Chloro-5-fluoropyrimidin-4-one
Purity
95+%
Packaging
1g
Price
$43
Updated
2021/12/16
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2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE Chemical Properties,Usage,Production

Synthesis

2927-71-1

155-12-4

The general procedure for the synthesis of 2-chloro-5-fluoropyrimidin-4(3H)-one from 2,4-dichloro-5-fluoropyrimidine was as follows: dimethylaniline (195 mL, 1.54 mol) was added to the slurry formed by 5-fluorouracil (99.73 g, 0.77 mol) and phosphoryl chloride (215 mL, 2.31 mol) under nitrogen protection, and the temperature of the reaction was maintained at 95 °C. The reaction mixture was stirred at this temperature for 3.5 hours and then cooled to room temperature and subsequently slowly poured into a stirred mixture of ice (200 g) and 6 M hydrochloric acid (200 mL). The resulting slurry was extracted with dichloromethane (2 x 400 mL), and the combined organic phases were washed with deionized water (4 x 275 mL), dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure to afford 111.77 g of 5-fluoro-2,4-dichloropyrimidine (87% yield, 98.1% AUC purity as determined by HPLC) as amber oil. Next, 1.34 L of 1 M sodium hydroxide solution was slowly added to a solution of 5-fluoro-2,4-dichloropyrimidine (111.77 g, 0.67 mol) in tetrahydrofuran (377 mL) at 0 °C. The reaction mixture was stirred at room temperature for about 30 min before the pH was slowly adjusted to 6 with 1.0 M hydrochloric acid.The aqueous phase was extracted with ethyl acetate (440 mL) to remove impurities, followed by adjusting the pH to 1 with 1.0 M hydrochloric acid.The acidic aqueous phase was extracted with ethyl acetate (4 x 555 mL).The combined organic phases were washed with brine (111 mL), dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure to give 2- chloro-5-fluoro-3H-pyrimidin-4-one 88.35 g (89% yield, 99% AUC purity by HPLC) as an off-white powder.

References

[1] Patent: EP1506967, 2005, A1. Location in patent: Page/Page column 67
[2] Bioorganic and Medicinal Chemistry, 2018, vol. 26, # 18, p. 4984 - 4995
[3] Patent: US2007/66636, 2007, A1. Location in patent: Page/Page column 19; 20
[4] Journal of Medicinal Chemistry, 2011, vol. 54, # 2, p. 510 - 524
[5] Patent: US2007/60529, 2007, A1. Location in patent: Page/Page column 14

2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE Suppliers

J & K SCIENTIFIC LTD.
Tel
18210857532; 18210857532
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
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96815
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Capot Chemical Co., Ltd
Tel
+86 (0) 571 85 58 67 18
Fax
0086-571-85864795
Country
China
ProdList
18207
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66
Nanjing Chemlin Chemical Co., Ltd
Tel
025-83697070
Fax
+86-25-83453306
Email
info@chemlin.com.cn
Country
China
ProdList
15883
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Shanghai Hanhong Scientific Co.,Ltd.
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021-54306202 13764082696
Email
info@hanhongsci.com
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China
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EnciPharmatech Co., Ltd
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025-52714267-66 13813902930
Fax
86 025 52714266
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stephen_shengll@hotmail.com
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China
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XiaoGan ShenYuan ChemPharm co,ltd
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15527768836
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1791901229@qq.com
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China
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6950
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Shanghai Ennopharm Co., Ltd.
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+86 (21) 6435-5022
Country
China
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4267
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Hangzhou Yuhao Chemical Technology Co., Ltd
Tel
0571-82693216
Fax
+86-571-82880190
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info@yuhaochemical.com
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China
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Tianjin YongSheng Biotechnology Co., Ltd.
Tel
022-60987737 13512258274
Fax
86-022-23500597
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sales@immortalbio.com
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China
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Wuhan Taiyicheng Biopharmaceutical Co., Ltd.
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027-88320699
Fax
027-88320962
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tycshyy@126.com
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China
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View Lastest Price from 2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE manufacturers

Shaanxi Dideu Medichem Co. Ltd
Product
2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE 155-12-4
Price
US $1.10/g
Min. Order
1g
Purity
99.0% min
Supply Ability
100 tons min
Release date
2021-05-26
Zhuozhou Wenxi import and Export Co., Ltd
Product
2-Chloro-4-hydroxy-5-fluoropyrimidine 155-12-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-10
Zhuozhou Wenxi import and Export Co., Ltd
Product
2-Chloro-4-hydroxy-5-fluoropyrimidine 155-12-4
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-07-08

155-12-4, 2-CHLORO-5-FLUOROPYRIMIDIN-4-ONERelated Search:


  • 2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE
  • 2-Chloro-4-hydroxy-5-fluoropyrimidine
  • 2-chloro-5-fluoro-1H-pyrimidin-6-one
  • 4(3H)-Pyrimidinone, 2-chloro-5-fluoro-
  • 2-chloro-5-fluoro-4-hydroxypyrimidine
  • 2-Chloro-5-fluoro-3H-pyriMidin-4-one
  • 2-Chloro-5-fluoropyriMidin-4(3H)-one
  • 2-Chloro-3,4-dihydro-5-fluoro-4-oxopyrimidine
  • 2-Chloro-5-fluoro-pyrimidin-4-ol
  • 4(1H)-Pyrimidinone, 2-chloro-5-fluoro- (9CI)
  • 2-Chloro-5-fluoro-1H-pyriMidine-6-one
  • 4-(1H)-Pyrimidinone, 2-chloro-5-fluoro-
  • 2-Chloro-5-fluoro-4-pyrimidinone
  • 2-Chloro-5-fluoropyrimidin-4(3H)-one 95+%
  • 2-CHLORO-5-FLUOROPYRIMIDIN-4-ONE ISO 9001:2015 REACH
  • 2-Chloro-5-fluoro-4(3H)-pyrimidinone
  • N-(5-((4-ethylpiperazin-1-yl)methyl)pyridin-2-yl)-N-(5-fluoro-4-(4-fluoro-1-isopropyl-2-methyl-1H-benzo[d]imidazol-6-yl)pyrimidin-2-yl)nitrous amide
  • Abemaciclib Impurity 36
  • 155-12-4
  • PYRIMIDINE