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1,3-Dicyanobenzene

CAS No.
626-17-5
Chemical Name:
1,3-Dicyanobenzene
Synonyms
DCB;IPN;ISOPHTHALONITRILE;M-DICYANOBENZENE;3-Cyanobenzonitrile;1,3-benzenedicarbonitrile;BENZENE-1,3-DICARBONITRILE;m-PDN;Isoftalonitril;M-PHTHALONITRILE
CBNumber:
CB3721865
Molecular Formula:
C8H4N2
Molecular Weight:
128.13
MDL Number:
MFCD00001795
MOL File:
626-17-5.mol
MSDS File:
SDS
Last updated:2026-05-28 04:52:39

1,3-Dicyanobenzene Properties

Melting point 163-165 °C(lit.)
Boiling point 288 °C
bulk density 500kg/m3
Density 0,992 g/cm3
vapor pressure 13.332Pa at 50℃
refractive index 1.6231 (estimate)
Flash point 288°C
storage temp. Store below +30°C.
solubility 0.7g/l
form Flakes
color White to tan
Water Solubility 0.7 g/L (20 ºC)
BRN 1072209
Exposure limits ACGIH: TWA 5 mg/m3
NIOSH: TWA 5 mg/m3
InChI 1S/C8H4N2/c9-5-7-2-1-3-8(4-7)6-10/h1-4H
InChIKey LAQPNDIUHRHNCV-UHFFFAOYSA-N
SMILES N#Cc1cccc(c1)C#N
LogP 1.5 at 25℃
CAS DataBase Reference 626-17-5(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 7G36N0292W
NIST Chemistry Reference 1,3-Benzenedicarbonitrile(626-17-5)
EPA Substance Registry System 1,3-Dicyanobenzene (626-17-5)
UNSPSC Code 12352117
NACRES NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H302
Precautionary statements  P301+P312+P330
PPE dust mask type N95 (US), Eyeshields, Faceshields, Gloves
Hazard Codes  Xn
Risk Statements  22-20/22
Safety Statements  22-24/25-36/37/39-26
RIDADR  2811
OEB B
OEL TWA: 5 mg/m3
WGK Germany  1
RTECS  CZ1900000
TSCA  TSCA listed
HazardClass  6.1(b)
PackingGroup  III
HS Code  29269020
Storage Class 11 - Combustible Solids
Hazard Classifications Acute Tox. 4 Oral
Hazardous Substances Data 626-17-5(Hazardous Substances Data)
REACH Registrations Active
NFPA 704
0
1 0

1,3-Dicyanobenzene price More Price(40)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich 8.41355 Isophthalonitrile for synthesis 626-17-5 100g $62.3 2026-04-30 Buy
Sigma-Aldrich 8.41355 Isophthalonitrile for synthesis 626-17-5 500g $194 2026-04-30 Buy
Sigma-Aldrich 145858 1,3-Dicyanobenzene 98% 626-17-5 5g $52.2 2026-04-30 Buy
Sigma-Aldrich 145858 1,3-Dicyanobenzene 98% 626-17-5 250g $86.3 2026-04-30 Buy
TCI Chemical I0158 Isophthalonitrile >98.0%(GC) 626-17-5 25g $35 2026-04-30 Buy
Product number Packaging Price Buy
8.41355 100g $62.3 Buy
8.41355 500g $194 Buy
145858 5g $52.2 Buy
145858 250g $86.3 Buy
I0158 25g $35 Buy

1,3-Dicyanobenzene Chemical Properties,Uses,Production

Description

1,3-Dicyanobenzene appears as white, crystalline or flaky solid with an almond-like odor. mp: 161-162 °C (sublimes) Density 1.28 g/cm3 (at 25 °C). Insoluble in water. Soluble in benzene and in acetone. Used as an intermediate in the manufacture of polyurethane paints and varnishes, pharmaceuticals, and agricultural chemicals.

Chemical Properties

off-white to light brown solid

Uses

1,3-Dicyanobenzene was used in the synthesis of oxazolines and 1,3-bis-(4,4-dimethyl-2-oxazolinyl)benzene.

Uses

An intermediate in the manufacture of paints, varnishes, and agricultural chemicals.

Definition

ChEBI: Isophthalonitrile is a nitrile. It is functionally related to an isophthalic acid.

General Description

White, crystalline or flaky solid with an almond-like odor. Mp:161-2°C (sublimes) Density 1.28 g cm-3 (at 25°C). Insoluble in water. Soluble in benzene and in acetone. Used as an intermediate in the manufacture of polyurethane paints and varnishes, pharmaceuticals, and agricultural chemicals.

Reactivity Profile

1,3-Dicyanobenzene is a combustible solid. Emits toxic fumes of NOx and CN- when heated to decomposition. Incompatible with strong oxidizing agents.

Health Hazard

m-Phthalodinitrile is a skin irritant in animals.In humans there have been no reports of adverse effects. The probable reason for lack of systemic effects is that aromatic, unlike aliphatic, nitriles do not liberate cyanide in the body.

Flammability and Explosibility

Not classified

Safety Profile

Poison by ingestion. An eye irritant. When heated to decomposition it emits toxic fumes of NOx and CN-. See also NITRILES.

Global( 399)Suppliers
Supplier Tel Email Country ProdList Advantage
Zibo tailize Chemical Co. , Ltd. 0533-5200592 13173271895 283531267@qq.com China 24 58
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TCI (Shanghai) Development Co., Ltd. 021-67121386 Sales-CN@TCIchemicals.com China 24512 81

View Lastest Price from 1,3-Dicyanobenzene manufacturers

Image Update time Product Price Min. Order Purity Supply Ability Manufacturer
1, 3-Dicyanobenzene pictures 2026-05-28 1, 3-Dicyanobenzene
626-17-5
$1.90 1KG 99% 10 ton Hebei Chuanghai Biotechnology Co,.LTD
1,3-Dicyanobenzene pictures 2026-03-20 1,3-Dicyanobenzene
626-17-5
$1.00 1kg 99% 10 mt Hebei Chuanghai Biotechnology Co., Ltd
Isophthalonitrile  pictures 2025-04-15 Isophthalonitrile
626-17-5
$20.00-75.00 1kg 99% 20ton Hebei Zhuanglai Chemical Trading Co.,Ltd
M-PHTHALONITRILE 1,3-Benzendikarbonitril 1,3-Benzodinitrile 1,3-Dicyanobenzene 98% 1,3-Dicyanobenzene,98% Between the benzene nitrile 1,4-bis((9H-carbazol-9-yl)Methyl)benzene 1,3-Dicyanobenzene, 98% 250GR 1,3-Dicyanobenzene, 98% 5GR Dinitrile of isophthalic acid dinitrileofisophthalicacid Isoftalodinitril isoftalodinitril(czech) Isoftalonitril Isophtalonitrile m-Benzenedinitrile m-Cyanobenzonitrile m-PDN m-Phthalodinitrile Nitril kyseliny isoftalove nitrilkyselinyisoftalove 1,3-Dicyanobenzene, Isophthalodinitrile nitrilkyselinyisoftalove(czech) 1,3-DICYANOBENZENE ISOPHTHALODINITRILE meta-PHTHALODINITRILE (1,3-DICYANOBENZENE) Isophthalonitrile,IPN Isophthalonitrile,98% META-PHTHALODINITRILE Benzol-1,3-dicarbonitril 1,3-DICYANOBENZENE / ISOPHTHALONITRILE Isophthalodinitrile, Isophthalonitrile Isophthalonitrile> ISOPHTHALONITRILE FOR SYNTHESIS 1,3-Dicyanobenzene ISO 9001:2015 REACH 1,3-Dicyanobenzene 626-17-5 1,3-dicyanobenzene,m-phthalodinitrile 1,3-benzenedicarbonitrile M-Phthalodinitrile(IPN) 3-Cyanobenzonitrile BENZENE-1,3-DICARBONITRILE DCB IPN ISOPHTHALONITRILE M-DICYANOBENZENE 626-17-5 119-85-3 83918-58-8 C6H4CN2 Building Blocks C8 to C9 Organic Building Blocks Nitrogen Compounds Cyanides/Nitriles Fine Chemical Aromatic Nitriles