4,5-DICHLOROPHTHALONITRILE

CAS NO.：139152-08-2
Empirical Formula: C8H2Cl2N2
Molecular Weight: 197.02
MDL number: MFCD00191408
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 01:30:41

What is 4,5-DICHLOROPHTHALONITRILE?

Chemical properties

Off-white powder

The Uses of 4,5-DICHLOROPHTHALONITRILE

4,5-Dichlorophthalonitrile is suitable as a reactant in the synthesis of 4,5-bis(3,4-dimethoxyphenyl) phthalonitrile and 4,5-bis(2,6-dimethoxyphenoxy) phthalonitrile. It may be used in the synthesis of 4,5-diphenoxyphthalonitrile.

What are the applications of Application

4,5-Dichlorophthalonitrile is an organic building block

General Description

4,5-Dichlorophthalonitrile (4,5-dichloro-1,2-dicyanobenzene) is a phthalonitrile derivative. It has been synthesized from 4,5-dichloro-1,2-benzenedicarboxamide and characterized by ¹H ,¹³C-NMR and IR. 4,5-dichlorophthalonitrile undergoes base catalyzed nucleophilic aromatic substitution reaction with O-, S- nucleophiles and acidic -CH containing compounds to form corresponding phthalonitrile derivatives, which are the precursors in the synthesis of phthalocyanines.

Properties of 4,5-DICHLOROPHTHALONITRILE

Melting point:	180-184 °C (lit.)
Boiling point:	312.4±42.0 °C(Predicted)
Density	1.48±0.1 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
solubility	almost transparency in hot Methanol
form	powder to crystal
color	White to Almost white
CAS DataBase Reference	139152-08-2

Safety information for 4,5-DICHLOROPHTHALONITRILE

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.