1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione

Modify Date: 2026-07-18 01:40:03

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure
1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione structure
Common Name 1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione
CAS Number 6957-85-3 Molecular Weight 207.27500
Density 1.73 g/cm3 Boiling Point 339.6ºC at 760 mmHg
Molecular Formula C8H5N3S2 Melting Point N/A
MSDS N/A Flash Point 159.2ºC

 Names

Name 2H-[1,2,4]triazolo[3,4-b][1,3]benzothiazole-1-thione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.73 g/cm3
Boiling Point 339.6ºC at 760 mmHg
Molecular Formula C8H5N3S2
Molecular Weight 207.27500
Flash Point 159.2ºC
Exact Mass 206.99200
PSA 93.42000
LogP 2.60660
Index of Refraction 1.935
InChIKey QTXZICUYCJDYLP-UHFFFAOYSA-N
SMILES S=c1[nH]nc2sc3ccccc3n12

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XZ5478000
CHEMICAL NAME :
s-Triazolo(3,4-b)benzothiazole-3-thiol
CAS REGISTRY NUMBER :
6957-85-3
LAST UPDATED :
199709
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C8-H5-N3-S2
MOLECULAR WEIGHT :
207.28
WISWESSER LINE NOTATION :
T B556 BN DNN GSJ CSH

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
56 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
CSLNX* U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals. (Aberdeen Proving Ground, MD 21010) Volume(issue)/page/year: NX#02811

 Safety Information

Hazard Codes Xi: Irritant;
HS Code 2934100090

 Synthetic Route

~90%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

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Literature: Aboelmagd; Ali, Ibrahim A.I.; Salem, Ezzeldin M.S.; Abdel-Razik European Journal of Medicinal Chemistry, 2013 , vol. 60, p. 503 - 511

~%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

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Literature: Polish Journal of Chemistry, , vol. 57, # 1-3 p. 341 - 344

~%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

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Literature: European Journal of Medicinal Chemistry, , vol. 60, p. 503 - 511

~61%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

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Literature: Kossowska, Barbara; Prelicz, Danuta; Utko, Krystyna; Wyzygowska, Lidia Polish Journal of Chemistry, 1983 , vol. 57, # 1-3 p. 341 - 344

~%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

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Literature: Polish Journal of Chemistry, , vol. 57, # 1-3 p. 341 - 344

~%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

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Literature: Indian Journal of Chemistry, , vol. 11, p. 321 - 324

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1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

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Literature: Indian Journal of Chemistry, , vol. 11, p. 321 - 324

~%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

Learn More
Literature: Polish Journal of Chemistry, , vol. 57, # 1-3 p. 341 - 344

~%

1,2,4-Triazolo[3,4-b]benzothiazole-3(2H)-thione Structure

1,2,4-Triazolo[...

CAS#:6957-85-3

Learn More
Literature: Indian Journal of Chemistry, , vol. 11, p. 321 - 324

 Customs

HS Code 2934100090
Summary 2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

 Bioassay

View more

Name: Antifungal activity against Candida albicans up to 24 hrs
Source: ChEMBL
Target: Candida albicans
External Id: CHEMBL2394319
Name: Luminescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: mu-type opioid receptor isoform MOR-1 [Homo sapiens]
External Id: OPRM1-OPRD1_AG_LUMI_1536_1X%ACT PRUN
Name: QFRET-based biochemical primary high throughput screening assay to identify exosite i...
Source: The Scripps Research Institute Molecular Screening Center
Target: disintegrin and metalloproteinase domain-containing protein 17 preproprotein [Homo sapiens]
External Id: ADAM17_INH_QFRET_1536_1X%INH PRUN
Name: Antifungal activity against Candida albicans at 500 ppm
Source: ChEMBL
Target: Candida albicans
External Id: CHEMBL2394323
Name: Antifungal activity against Aspergillus flavus by agar diffusion technique
Source: ChEMBL
Target: Aspergillus flavus
External Id: CHEMBL2394322
Name: Fluorescence-based cell-based primary high throughput screening assay to identify ago...
Source: The Scripps Research Institute Molecular Screening Center
Target: muscarinic acetylcholine receptor M1 [Homo sapiens]
External Id: CHRM1_AG_FLUO8_1536_1X%ACT PRUN
Name: Antifungal activity against Aspergillus flavus up to 24 hrs
Source: ChEMBL
Target: Aspergillus flavus
External Id: CHEMBL2394321
Name: Antifungal activity against Candida albicans by agar diffusion technique
Source: ChEMBL
Target: Candida albicans
External Id: CHEMBL2394320
Name: Fluorescence polarization to screen for inhibitor that competite the binding of FadD2...
Source: Broad Institute
Target: FATTY-ACID-CoA LIGASE FADD28 (FATTY-ACID-CoA SYNTHETASE)
External Id: 2147-01_Inhibitor_SinglePoint_HTS_Activity
Name: Bursicon-induced LGR2 mediated cAMP production in LGR-2/CRE6x-Luciferase co-transfect...
Source: Broad Institute
Target: N/A
External Id: Bursicon-induced LGR2 mediated cAMP production in LGR-2/CRE6x-Luciferase co-transfected HEK293 cells Inhibition - 7011-01_Antagonist_SinglePoint_HTS_Activity
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 Synonyms

s-Triazolo(3,4-b)benzothiazol-3-thiol
10-mercapto-2,3-azinomethylbenzothiazole
[1,2,4]triazolo[3,4-b][1,3]benzothiazole-3-thiol
s-Triazolo[3,4-b]benzothiazole-3-thiol
benzo[4,5]thiazolo[2,3-c][1,2,4]triazole-3-thiol
3-mercapto-7-thia-1,2,3-triazacyclopentaindene
2H-Benzo[4,5]thiazolo[2,3-c][1,2,4]triazole-3-thione
1,2,4-Triazolo(3,4-b)benzothiazole-3(2H)-thione
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