Shanghai Nianxing Industrial Co., Ltd
China
Product Name: Terephthalonitrile
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: Terephthalonitrile
Price: ￥588.0/500g ￥168.0/100g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 1,4-Dicyanobenzene
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: Terephthalonitrile
Price: ￥Inquiry/25kg
Purity: 99.0%
Stocking Period: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

623-26-7

623-26-7 structure

623-26-7 structure

Name: Terephthalonitrile
Chemical Name: 1,4-Dicyanobenzene
CAS Number: 623-26-7
Molecular Formula: C₈H₄N₂
Molecular Weight: 128.131
Catalog: Chemical reagent Organic reagent Cyanide/nitrile
Create Date: 2018-02-11 08:00:00
Modify Date: 2025-08-24 17:25:10

Name	1,4-Dicyanobenzene
Synonyms	1,4-Benzenedicarbonitrile EINECS 210-783-2 MFCD00001810 p-dicyanobenzene benzene-1,4-dicarbonitrile 1,4-Dicyanobenzene Benzol-1,4-dicarbonitril Terephthalonitrile

Density	1.2±0.1 g/cm3
Boiling Point	289.6±23.0 °C at 760 mmHg
Melting Point	221-225 °C(lit.)
Molecular Formula	C₈H₄N₂
Molecular Weight	128.131
Flash Point	142.8±16.5 °C
Exact Mass	128.037445
PSA	47.58000
LogP	0.97
Vapour Pressure	0.0±0.6 mmHg at 25°C
Index of Refraction	1.566
Stability	Stable. Incompatible with strong acids, strong bases, strong oxidizing agents, strong reducing agents.
Water Solubility	0.08 g/L (23 ºC)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: CZ1925000

CHEMICAL NAME :: 1,4-Benzenedicarbonitrile

CAS REGISTRY NUMBER :: 623-26-7

LAST UPDATED :: 199710

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: C8-H4-N2

MOLECULAR WEIGHT :: 128.14

WISWESSER LINE NOTATION :: NCR DCN

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: Standard Draize test

ROUTE OF EXPOSURE :: Administration into the eye

SPECIES OBSERVED :: Rodent - rabbit

REFERENCE :: 85JCAE "Prehled Prumyslove Toxikologie; Organicke Latky," Marhold, J., Prague, Czechoslovakia, Avicenum, 1986 Volume(issue)/page/year: -,905,1986 ** ACUTE TOXICITY DATA **

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >6400 mg/kg

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

REFERENCE :: ZAARAM Zentralblatt fuer Arbeitsmedizin und Arbeitsschutz. (Darmstadt, Fed. Rep. Ger.) V.1-25, 1951-75. Volume(issue)/page/year: 19,225,1969

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4004 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - ptosis Behavioral - muscle weakness Lungs, Thorax, or Respiration - acute pulmonary edema

REFERENCE :: APFRAD Annales Pharmaceutiques Francaises. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1943- Volume(issue)/page/year: 48,23,1990

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >300 mg/kg

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

REFERENCE :: JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 21,906,1978

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 699 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

Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Gloves
Hazard Codes	Xi: Irritant;
Risk Phrases	R36/37/38
Safety Phrases	S26-S24/25
RIDADR	3439
WGK Germany	2
RTECS	CZ1925000
Packaging Group	III
Hazard Class	6.1(b)
HS Code	29269095

Precursor 9
102437-81-0 106-42-3 105-07-7 860682-30-0
20114-65-2 589-29-7 3012-37-1 126747-14-6
3034-34-2
DownStream 10
1591-30-6 104-51-8 52709-83-8 20651-73-4
134785-03-8 35975-12-3 10406-25-4 3363-97-1
623-26-7 98-95-3

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%

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