1-(Trichloromethylmercapto)-pyrazole

Modify Date: 2025-08-25 09:40:54

1-(Trichloromethylmercapto)-pyrazole structure	Common Name	1-(Trichloromethylmercapto)-pyrazole
	CAS Number	25726-97-0	Molecular Weight	217.50400
	Density	1.65g/cm3	Boiling Point	197.5ºC at 760mmHg
	Molecular Formula	C₄H₃Cl₃N₂S	Melting Point	N/A
	MSDS	N/A	Flash Point	73.2ºC

Name	1-(trichloromethylsulfanyl)pyrazole
Synonym	More Synonyms

Density	1.65g/cm3
Boiling Point	197.5ºC at 760mmHg
Molecular Formula	C₄H₃Cl₃N₂S
Molecular Weight	217.50400
Flash Point	73.2ºC
Exact Mass	215.90800
PSA	43.12000
LogP	2.70710
Vapour Pressure	0.378mmHg at 25°C
Index of Refraction	1.642

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UQ8050000

CHEMICAL NAME :: Pyrazole, 1-((trichloromethyl)thio)-

CAS REGISTRY NUMBER :: 25726-97-0

BEILSTEIN REFERENCE NO. :: 0122563

LAST UPDATED :: 199612

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C4-H3-Cl3-N2-S

MOLECULAR WEIGHT :: 217.50

WISWESSER LINE NOTATION :: T5NNJ ASXGGG

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 350 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969

TYPE OF TEST :: LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :: Inhalation

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 ppm/1H

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: 63 uL/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 30,470,1969

HS Code	2933199090

HS Code	2933199090
Summary	2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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Product Name: 1-(Trichloromethylmercapto)-pyrazole
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