5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One

Modify Date: 2025-08-29 11:56:22

5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One Structure
5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One structure
 Common Name 5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One
CAS Number 43088-64-8 Molecular Weight 166.20000
Density 1.53g/cm3 Boiling Point 403.9ºC at 760mmHg
Molecular Formula C7H6N2OS Melting Point N/A
MSDS N/A Flash Point 198.1ºC

 Names

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

Name 5-methyl-3H-thieno[2,3-d]pyrimidin-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 1.53g/cm3
Boiling Point 403.9ºC at 760mmHg
Molecular Formula C7H6N2OS
Molecular Weight 166.20000
Flash Point 198.1ºC
Exact Mass 166.02000
PSA 73.99000
LogP 1.29300
Index of Refraction 1.752
InChIKey HRKYSEOOABTTCJ-UHFFFAOYSA-N
SMILES Cc1csc2nc[nH]c(=O)c12

 Safety Information

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

HS Code 2934999090

 Synthetic Route

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

ETHYL 2-AMINO-4-METHYLTHIOPHENE-3-CARBOXYLATE structure

ETHYL 2-AMINO-4...

CAS#:43088-42-2

(Z)-Methanimidic acid structure

(Z)-Methanimidi...

CAS#:77287-34-4

~%

5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One Structure

5-Methyl-3,4-Di...

CAS#:43088-64-8

Learn More
Literature: Lou, Jiangping; Liu, Zhen; Li, Yan; Zhou, Mi; Zhang, Zhengxi; Zheng, Shu; Wang, Renxiao; Li, Jian Bioorganic and Medicinal Chemistry Letters, 2011 , vol. 21, # 22 p. 6662 - 6666
ETHYL 5-METHYL-4-OXO-3,4-DIHYDROTHIENO[2,3-D]-PYRIMIDINE-6-CARBOXYLATE structure

ETHYL 5-METHYL-...

CAS#:17417-67-3

~%

5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One Structure

5-Methyl-3,4-Di...

CAS#:43088-64-8

Learn More
Literature: Grinev, A. N.; Kaplina, N. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 7 p. 767 - 770 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , # 7 p. 925 - 928
2-Amino-4-methyl-3-thiophenecarbonitrile structure

2-Amino-4-methy...

CAS#:4623-55-6

Formic Acid structure

Formic Acid

CAS#:64-18-6

~85%

5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One Structure

5-Methyl-3,4-Di...

CAS#:43088-64-8

Learn More
Literature: Ashok; Satish Goud; Shravani; Rajaiah; Sarasija; Bhaskar Indian Journal of Heterocyclic Chemistry, 2010 , vol. 20, # 2 p. 101 - 104
5-METHYL-4-OXO-3,4-DIHYDROTHIENO[2,3-D]PYRIMIDINE-6-CARBOXYLIC ACID structure

5-METHYL-4-OXO-...

CAS#:101667-97-4

~%

5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One Structure

5-Methyl-3,4-Di...

CAS#:43088-64-8

Learn More
Literature: Grinev, A. N.; Kaplina, N. V. Chemistry of Heterocyclic Compounds (New York, NY, United States), 1985 , vol. 21, # 7 p. 767 - 770 Khimiya Geterotsiklicheskikh Soedinenii, 1985 , # 7 p. 925 - 928

 Customs

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

HS Code 2934999090
Summary 2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 Bioassay

View more

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

Name: Screen for inhibitors of RMI FANCM (MM2) intereaction
Source: 11908
Target: N/A
External Id: RMI-FANCM-MM2
Name: Inhibitors of CDC25B-CDK2/CyclinA interaction
Source: Center for Chemical Genomics, University of Michigan
External Id: MScreen:TargetID_600
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 Synonyms

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

5-Methyl-4-oxo-3,4-dihydro-thieno<2,3-d>pyrimidin
5-Methyl-3,4-dihydrothieno<2,3-d>pyrimid-4-one
MFCD00205193
3H-5-methylthieno<2,3-d>pyrimidin-4-one

  | FAQ

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

Q: What is the molecular formula of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: Molecular formula of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one is C7H6N2OS.
Q: What is the polar surface area (PSA) of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: Polar surface area (PSA) of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one is 73.99000.
Q: What is the InChIKey of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: InChIKey of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one is HRKYSEOOABTTCJ-UHFFFAOYSA-N.
Q: What English synonyms does 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one have?
A: English synonyms of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one: 5-Methyl-4-oxo-3,4-dihydro-thienopyrimidin, 5-Methyl-3,4-dihydrothienopyrimid-4-one, MFCD00205193, 3H-5-methylthienopyrimidin-4-one.
Q: What is the English name of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: The English name of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one is 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one.
Q: What are the upstream materials of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: Related upstream materials(CAS) of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one: 43088-42-2;77287-34-4;17417-67-3;4623-55-6;64-18-6;101667-97-4.
Q: What is the SMILES notation of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: SMILES notation of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one is Cc1csc2nc[nH]c(=O)c12.
Q: What is the LogP of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: LogP of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one is 1.29300.
Q: What are the downstream products of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: Related downstream products(CAS) of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one: 43088-67-1;19673-91-7;19786-56-2;94620-78-7;56844-14-5.
Q: What is the molecular weight of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one?
A: Molecular weight of 5-methyl-3H-thieno[2,3-d]pyrimidin-4-one is 166.20000.

 factory

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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Chemsrc provides CAS#:43088-64-8 MSDS, density, melting point, boiling point, structure, etc. Its name is 5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One>> amp version: 5-Methyl-3,4-Dihydrothieno[2,3-d]Pyrimid-4-One

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