6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one

Product Name: 6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one
CAS No.: 5334-35-0
Chemical Name: 6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one
Synonyms: 6-chloro-1-Methyl-1H-pyrazolo[3;6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one;6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one;6-Chloro-1-methyl-1H,4H,5H-pyrazolo-[3,4-d]pyrimidin-4-one;6-chloro-1-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one;4H-Pyrazolo[3,4-d]pyrimidin-4-one, 6-chloro-1,5-dihydro-1-methyl-
CBNumber: CB72528293
Molecular Formula: C6H5ClN4O
Formula Weight: 184.58
MOL File: 5334-35-0.mol

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6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one Property

Melting point:: 267-268 °C
Density: 1.79±0.1 g/cm3(Predicted)
storage temp.: under inert gas (nitrogen or Argon) at 2-8°C
pka: 6.37±0.20(Predicted)

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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

H335May cause respiratory irritation

Precautionary statements

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

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

TRC

Product number: C374623
Product name: 6-chloro-1-methyl-1H,4H,5H-pyrazolo[3,4-d]pyrimidin-4-one
Packaging: 50mg
Price: $155
Updated: 2021/12/16

Matrix Scientific

Product number: 134103
Product name: 6-Chloro-1-methyl-1H,4H,5H-pyrazolo-[3,4-d]pyrimidin-4-one
Purity: 95%+
Packaging: 500mg
Price: $370
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: HCH0061059
Product name: 6-CHLORO-1-METHYL-1H,4H,5H-PYRAZOLO[3,4-D]PYRIMIDIN-4-ONE
Purity: 95.00%
Packaging: 1G
Price: $998.08
Updated: 2021/12/16

Matrix Scientific

Product number: 134103
Product name: 6-Chloro-1-methyl-1H,4H,5H-pyrazolo-[3,4-d]pyrimidin-4-one
Purity: 95%+
Packaging: 2.500g
Price: $1374
Updated: 2021/12/16

American Custom Chemicals Corporation

Product number: HCH0061059
Product name: 6-CHLORO-1-METHYL-1H,4H,5H-PYRAZOLO[3,4-D]PYRIMIDIN-4-ONE
Purity: 95.00%
Packaging: 2.5G
Price: $1499.48
Updated: 2021/12/16

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6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one Chemical Properties,Usage,Production

Synthesis

98141-42-5

5334-35-0

General procedure for the synthesis of 6-chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one from 4,6-dichloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidinium: In a sealed reaction vessel, 4,6-dichloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidinium (2.2 g, 10.8 mmol) and 2 M sodium hydroxide aqueous solution (50 mL). After sealing the vessel, the reaction mixture was heated to 70 °C and stirred for 30 min under the protection of a blast shield. Upon completion of the reaction, the clarified reaction solution was diluted with water and the pH was adjusted to 6-7 with 2M aqueous hydrochloric acid solution, followed by vacuum concentration. The precipitated solid was collected by filtration and washed with ethanol (~300 mL). The filtrate was concentrated in vacuum and adsorbed on Celite and purified by fast chromatography (using a 40 g silica gel column with 1-10% methanol:dichloromethane as eluent) to afford 6-chloro-1-methyl-1,5-dihydro-pyrazolo[3,4-d]pyrimidin-4-one as a white solid (1.45 g, 72.5% yield). The product was confirmed by 1H NMR (300 MHz, DMSO-d6): δ 3.87 (s, 3H), 8.06 (s, 1H), 13.18 (br.s., 1H).Results of the LC-MS analysis: calculated value C6H6ClN4 [(M+H)+] 185, measured value 184.9.

References

[1] Patent: WO2013/182546, 2013, A1. Location in patent: Page/Page column 85

6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one Preparation Products And Raw materials

Raw materials

Preparation Products

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6-Chloro-1-methyl-1H-pyrazolo[3,4-d]pyrimidin-4(7H)-one Suppliers

China 18 India 1 United States 5 Global 24

Accela ChemBio Co.,Ltd.

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Accela ChemBio Inc.

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