5-Methylquinazolin-4-ol

Modify Date: 2026-06-30 16:07:34

5-Methylquinazolin-4-ol Structure
5-Methylquinazolin-4-ol structure
Common Name 5-Methylquinazolin-4-ol
CAS Number 75844-41-6 Molecular Weight 160.173
Density 1.3±0.1 g/cm3 Boiling Point 330.0±35.0 °C at 760 mmHg
Molecular Formula C9H8N2O Melting Point 224ºC
MSDS N/A Flash Point 153.4±25.9 °C

 Names

This table lists Chinese names, IUPAC names and various aliases of this chemical substance.

Name 5-methyl-1H-quinazolin-4-one
Synonym More Synonyms

 Chemical & Physical Properties

This table shows physicochemical parameters including melting point, boiling point, density, solubility and optical rotation. Missing data is marked as N/A.

Density 1.3±0.1 g/cm3
Boiling Point 330.0±35.0 °C at 760 mmHg
Melting Point 224ºC
Molecular Formula C9H8N2O
Molecular Weight 160.173
Flash Point 153.4±25.9 °C
Exact Mass 160.063660
PSA 45.75000
LogP 1.23
Vapour Pressure 0.0±0.7 mmHg at 25°C
Index of Refraction 1.644

 Safety Information

This table covers safety warnings, protective measures, incompatible substances and disposal guidelines for this compound.

HS Code 2927000090

 Synthetic Route

This table presents publicly reported synthetic routes, reaction conditions, reactants and product information of the compound.

~84%

5-Methylquinazolin-4-ol Structure

5-Methylquinazo...

CAS#:75844-41-6

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Literature: Kulkarni, Shridhar S.; Singh, Satyakam; Shah, Janki R.; Low, Woon-Kai; Talele, Tanaji T. European Journal of Medicinal Chemistry, 2012 , vol. 50, p. 264 - 273

~90%

5-Methylquinazolin-4-ol Structure

5-Methylquinazo...

CAS#:75844-41-6

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Literature: Chandregowda, Venkateshappa; Venkateswara Rao, Gudapati; Chandrasekara Reddy, Goukanapalli Heterocycles, 2007 , vol. 71, # 1 p. 39 - 48

~%

5-Methylquinazolin-4-ol Structure

5-Methylquinazo...

CAS#:75844-41-6

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Literature: Journal fuer Praktische Chemie (Leipzig), , vol. 327, # 5 p. 865 - 867

~%

5-Methylquinazolin-4-ol Structure

5-Methylquinazo...

CAS#:75844-41-6

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Literature: Chemische Berichte, , vol. 52, p. 1083

~%

5-Methylquinazolin-4-ol Structure

5-Methylquinazo...

CAS#:75844-41-6

Learn More
Literature: Chemische Berichte, , vol. 52, p. 1083

 Customs

This table shows customs‑related data including HS‑code, tariff and regulatory conditions for import and export.

HS Code 2927000090
Summary 2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

 5-Methylquinazolin-4-olBioassay

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This table contains target information, in‑vitro & in‑vivo assay data for this compound.

Name: Aqueous solubility of the compound
Source: ChEMBL
Target: N/A
External Id: CHEMBL2434707
Name: Inhibition of PARP1 using TACS-Sapphire substrate for 30 mins by colorimetry
Source: ChEMBL
Target: Poly [ADP-ribose] polymerase 1
External Id: CHEMBL1953234
Name: Inhibition of PARP1 at 25 uM using TACS-Sapphire substrate for 30 mins by colorimetry
Source: ChEMBL
Target: Poly [ADP-ribose] polymerase 1
External Id: CHEMBL1953239
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 Synonyms

This table collects all English aliases, systematic names and CAS‑related synonyms of the compound.

5-methyl-4-quinazolinol
5-methyl-3H-quinazolin-4-one
5-Methyl-3H-chinazolin-4-on
5-Methyl-4(1H)-quinazolinone
5-Methyl-4-quinazolone
5-methylquinazolin-4(3H)-one
5-Methylquinazolin-4-ol
5-Methylquinazolin-4(1H)-one

 5-Methylquinazolin-4-ol | FAQ

This section contains frequently‑asked‑questions about this compound, including basic parameters, properties, storage conditions and corresponding answers.

Q: What is the melting point of 5-methyl-1H-quinazolin-4-one?
A: Melting point of 5-methyl-1H-quinazolin-4-one is 224ºC.
Q: What English synonyms does 5-methyl-1H-quinazolin-4-one have?
A: English synonyms of 5-methyl-1H-quinazolin-4-one: 5-methyl-4-quinazolinol, 5-methyl-3H-quinazolin-4-one, 5-Methyl-3H-chinazolin-4-on, 5-Methyl-4(1H)-quinazolinone, 5-Methyl-4-quinazolone, 5-methylquinazolin-4(3H)-one, 5-Methylquinazolin-4-ol, 5-Methylquinazolin-4(1H)-one.
Q: What is the LogP of 5-methyl-1H-quinazolin-4-one?
A: LogP of 5-methyl-1H-quinazolin-4-one is 1.23.
Q: What is the polar surface area (PSA) of 5-methyl-1H-quinazolin-4-one?
A: Polar surface area (PSA) of 5-methyl-1H-quinazolin-4-one is 45.75000.
Q: What is the English name of 5-methyl-1H-quinazolin-4-one?
A: The English name of 5-methyl-1H-quinazolin-4-one is 5-methyl-1H-quinazolin-4-one.
Q: What is the molecular weight of 5-methyl-1H-quinazolin-4-one?
A: Molecular weight of 5-methyl-1H-quinazolin-4-one is 160.173.
Q: What is the CAS number of 5-methyl-1H-quinazolin-4-one?
A: CAS number of 5-methyl-1H-quinazolin-4-one is 75844-41-6.
Q: What is the boiling point of 5-methyl-1H-quinazolin-4-one?
A: Boiling point of 5-methyl-1H-quinazolin-4-one is 330.0±35.0 °C at 760 mmHg.
Q: What is the molecular formula of 5-methyl-1H-quinazolin-4-one?
A: Molecular formula of 5-methyl-1H-quinazolin-4-one is C9H8N2O.

 5-Methylquinazolin-4-olfactory

This table lists manufacturers and suppliers of this compound, including vendor names and product supply reference information.

Shanghai Nianxing Industrial Co., Ltd
Dayang Chem (Hangzhou) Co., Ltd.
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