6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one

Modify Date: 2026-08-31 12:45:58

6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one Structure
6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one structure
Common Name 6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one
CAS Number 2002-59-7 Molecular Weight 168.176
Density 1.8±0.1 g/cm3 Boiling Point 722.6±63.0 °C at 760 mmHg
Molecular Formula C5H4N4OS Melting Point 300 °C
MSDS N/A Flash Point 390.8±33.7 °C

 Names

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

Name 6-Thioxanthine
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 1.8±0.1 g/cm3
Boiling Point 722.6±63.0 °C at 760 mmHg
Melting Point 300 °C
Molecular Formula C5H4N4OS
Molecular Weight 168.176
Flash Point 390.8±33.7 °C
Exact Mass 168.010574
PSA 109.42000
LogP -0.70
Vapour Pressure 0.0±2.4 mmHg at 25°C
Index of Refraction 1.894
InChIKey RJOXFJDOUQJOMQ-UHFFFAOYSA-N
SMILES O=c1[nH]c(=S)c2[nH]cnc2[nH]1
Storage condition 2-8°C

 Safety Information

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

Hazard Codes Xn: Harmful;
Risk Phrases R20/21/22
Safety Phrases S24/25-S36
HS Code 2933990090

 Synthetic Route

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

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6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one Structure

6-Thioxo-6,9-di...

CAS#:2002-59-7

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Literature: Journal of the American Chemical Society, , vol. 76, p. 5633,5635,5636

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6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one Structure

6-Thioxo-6,9-di...

CAS#:2002-59-7

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Literature: US2697709 , ;

~%

6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one Structure

6-Thioxo-6,9-di...

CAS#:2002-59-7

Learn More
Literature: US2697709 , ;

 Customs

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

HS Code 2933990090
Summary 2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

 6-Thioxo-6,9-dihydro-1H-purin-2(3H)-oneBioassay

View more

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

Name: qHTS Assay for Substrates of Mammalian Selenoprotein Thioredoxin Reductase 1 (TrxR1):...
Source: NCGC
Target: thioredoxin reductase [Rattus norvegicus]
External Id: TRXR101
Name: qHTS for Inhibitors of Polymerase Iota
Source: NCGC
Target: DNA polymerase iota [Homo sapiens]
External Id: PolI100
Name: Substrate activity at Helicobacter pylori XGHPRT assessed as Kcat using purine base a...
Source: ChEMBL
Target: N/A
External Id: CHEMBL4826250
Name: qHTS for Inhibitors of human tyrosyl-DNA phosphodiesterase 1 (TDP1): qHTS in cells in...
Source: NCGC
Target: TDP1 protein [Homo sapiens]
External Id: TDP1100
Name: qHTS for Stage-Specific Inhibitors of Vaccinia Orthopoxvirus: mCherry Reporter Primar...
Source: NCGC
Target: 67.9K protein [Vaccinia virus]
External Id: Vaccinia-p2mCherry
Name: qHTS for Inhibitors of human tyrosyl-DNA phosphodiesterase 1 (TDP1): qHTS in cells in...
Source: NCGC
Target: TDP1 protein [Homo sapiens]
External Id: TDP1101
Name: qHTS for Inhibitors of Polymerase Kappa
Source: NCGC
Target: DNA polymerase kappa [Homo sapiens]
External Id: PolK100
Name: qHTS Assay for Inhibitors of Mammalian Selenoprotein Thioredoxin Reductase 1 (TrxR1):...
Source: NCGC
Target: thioredoxin reductase [Rattus norvegicus]
External Id: TRXR100
Name: qHTS for Stage-Specific Inhibitors of Vaccinia Orthopoxvirus: Venus Reporter Primary ...
Source: NCGC
Target: 67.9K protein [Vaccinia virus]
External Id: Vaccinia-p2Venus
Name: qHTS for Inhibitors of TGF-b: Cytotox Counterscreen
Source: NCGC
Target: N/A
External Id: SMAD3201
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 Synonyms

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

6-Sulfanyl-9H-purin-2-ol
6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one
MFCD00010841
6-Thioxo-1,3,6,7-tetrahydro-2H-purin-2-one
6-sulfanylidene-3,7-dihydropurin-2-one

 6-Thioxo-6,9-dihydro-1H-purin-2(3H)-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 6-Thioxanthine?
A: Molecular formula of 6-Thioxanthine is C5H4N4OS.
Q: What are the storage conditions for 6-Thioxanthine?
A: Storage conditions for 6-Thioxanthine: 2-8°C.
Q: What is the InChIKey of 6-Thioxanthine?
A: InChIKey of 6-Thioxanthine is RJOXFJDOUQJOMQ-UHFFFAOYSA-N.
Q: What is the melting point of 6-Thioxanthine?
A: Melting point of 6-Thioxanthine is 300 °C.
Q: What English synonyms does 6-Thioxanthine have?
A: English synonyms of 6-Thioxanthine: 6-Sulfanyl-9H-purin-2-ol, 6-Thioxo-6,9-dihydro-1H-purin-2(3H)-one, MFCD00010841, 6-Thioxo-1,3,6,7-tetrahydro-2H-purin-2-one, 6-sulfanylidene-3,7-dihydropurin-2-one.
Q: What is the SMILES notation of 6-Thioxanthine?
A: SMILES notation of 6-Thioxanthine is O=c1[nH]c(=S)c2[nH]cnc2[nH]1.
Q: What is the safety information for 6-Thioxanthine?
A: Safety information for 6-Thioxanthine: S24/25-S36.
Q: What is the LogP of 6-Thioxanthine?
A: LogP of 6-Thioxanthine is -0.70.
Q: What is the English name of 6-Thioxanthine?
A: The English name of 6-Thioxanthine is 6-Thioxanthine.
Q: What is the molecular weight of 6-Thioxanthine?
A: Molecular weight of 6-Thioxanthine is 168.176.

 6-Thioxo-6,9-dihydro-1H-purin-2(3H)-onefactory

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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