Perthiocyanic acid

Modify Date: 2025-09-18 18:08:45

Perthiocyanic acid Structure
Perthiocyanic acid structure
Common Name Perthiocyanic acid
CAS Number 20939-17-7 Molecular Weight 150.24600
Density 1.276g/cm3 Boiling Point 42.238ºC at 760 mmHg
Molecular Formula C2H2N2S3 Melting Point N/A
MSDS N/A Flash Point -20.654ºC

 Names

Name 1,2,4-thiadiazolidine-3,5-dithione
Synonym More Synonyms

 Chemical & Physical Properties

Density 1.276g/cm3
Boiling Point 42.238ºC at 760 mmHg
Molecular Formula C2H2N2S3
Molecular Weight 150.24600
Flash Point -20.654ºC
Exact Mass 149.93800
PSA 124.00000
LogP 1.86330
Vapour Pressure 394.633mmHg at 25°C
Index of Refraction 1.464

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
XI4817000
CHEMICAL NAME :
1,2,4-Thiadiazolidine-3,5-dithione
CAS REGISTRY NUMBER :
20939-17-7
LAST UPDATED :
199406
DATA ITEMS CITED :
1
MOLECULAR FORMULA :
C2-H2-N2-S3

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD - Lethal dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
>500 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
NCNSA6 National Academy of Sciences, National Research Council, Chemical-Biological Coordination Center, Review. (Washington, DC) Volume(issue)/page/year: 5,24,1953

 Safety Information

HS Code 2934999090

 Precursor & DownStream

Precursor  0

DownStream  2

 Customs

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

 Synonyms

1,2,4-Thiadiazole-3,5-dithiol
Perthiocyanic acid
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