3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile

Modify Date: 2025-08-26 18:33:55

3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile structure	Common Name	3,4,5,6-Tetrachlorobenzene-1,2-dicarbonitrile
	CAS Number	1953-99-7	Molecular Weight	265.91100
	Density	1.71 g/cm3	Boiling Point	353.9ºC at 760 mmHg
	Molecular Formula	C₈Cl₄N₂	Melting Point	249-252 °C (dec.)(lit.)
	MSDS	Chinese USA	Flash Point	156ºC
	Symbol	GHS07	Signal Word	Warning

Name	Tetrachlorophthalonitrile
Synonym	More Synonyms

Density	1.71 g/cm3
Boiling Point	353.9ºC at 760 mmHg
Melting Point	249-252 °C (dec.)(lit.)
Molecular Formula	C₈Cl₄N₂
Molecular Weight	265.91100
Flash Point	156ºC
Exact Mass	263.88200
PSA	47.58000
LogP	4.04356
Vapour Pressure	3.48E-05mmHg at 25°C
Index of Refraction	1.632

MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: TI8225000

CHEMICAL NAME :: o-Phthalodinitrile, tetrachloro-

CAS REGISTRY NUMBER :: 1953-99-7

LAST UPDATED :: 199612

DATA ITEMS CITED :: 3

MOLECULAR FORMULA :: C8-Cl4-N2

MOLECULAR WEIGHT :: 265.90

WISWESSER LINE NOTATION :: NCR CG DG EG FG BCN

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 13720 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity)

REFERENCE :: INHEAO Industrial Health. (National Institute of Industrial Health, 6-21-1 Nagao, Tama-ku, Kawasaki, 213 Japan) V.1- 1963- Volume(issue)/page/year: 4,11,1966

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 66 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity)

REFERENCE :: INHEAO Industrial Health. (National Institute of Industrial Health, 6-21-1 Nagao, Tama-ku, Kawasaki, 213 Japan) V.1- 1963- Volume(issue)/page/year: 4,11,1966

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3500 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity)

REFERENCE :: INHEAO Industrial Health. (National Institute of Industrial Health, 6-21-1 Nagao, Tama-ku, Kawasaki, 213 Japan) V.1- 1963- Volume(issue)/page/year: 4,11,1966

Symbol	GHS07
Signal Word	Warning
Hazard Statements	H312 + H332
Precautionary Statements	P280
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xn: Harmful;
Risk Phrases	R20/21/22
Safety Phrases	S36
RIDADR	NONH for all modes of transport
RTECS	TI8225000
HS Code	2926909090

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Literature: Shapovalov, A. A.; Zhalgasbaeva, G. Sh.; Sembaev, D. Kh.; Suvorov, B. V. Journal of Organic Chemistry USSR (English Translation), 1987 , vol. 23, # 6 p. 1140 - 1143 Zhurnal Organicheskoi Khimii, 1987 , vol. 23, # 6 p. 1260 - 1264

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Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , p. 125 - 129

HS Code	2926909090
Summary	HS:2926909090 other nitrile-function compounds VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:30.0%