Isophthaloyl chloride
ALDRICH/I19403 - ≥99%
Synonym: Isophthaloyl dichloride
CAS Number: 99-63-8
Empirical Formula (Hill Notation): C8H4Cl2O2
Molecular Weight: 203.02
EC Number: 202-774-7
MDL Number: MFCD00000678
Linear Formula: C6H4-1,3-(COCl)2
Product Type: Chemical


This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: I19403-100G
This image depicts SKU: I19403-100G

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: I19403-500G
This image depicts SKU: I19403-500G

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: I19403-1KG
This image depicts SKU: I19403-1KG

This picture is provided solely for illustration purposes. Optical properties of the actual product may deviate. Relevant product information is printed on labeled products and other accompanying or available information material.
This image depicts SKU: I19403-5KG
This image depicts SKU: I19403-5KG
assay | ≥99% |
bp | 276 °C (lit.) |
expl. lim. | 8.9 % |
InChI | 1S/C8H4Cl2O2/c9-7(11)5-2- |
InChI key | FDQSRULYDNDXQB-UHFFFAOYSA |
mp | 43-44 °C (lit.) |
Quality Level | 200 ![]() |
SMILES string | ClC(=O)c1cccc(c1)C(Cl)=O |
vapor pressure | 0.03 mmHg ( 25 °C) |
Application: | Isopthaloyl chloride reacts with; • Polyethylene amine to produce PA-100 membrane • Epiamine, a polyether amine, to produce PA-300 membrane • 1,3-diamino-4-chloroben • Melamine forms polyamide aerogel • bis-amine, produces an isophthalamide catenan • Terephthaloyl chloride and bisphenol-type diazonaphthoquinone (DNQ) to polycondensate into a polyarylates containing DNQ structure |
General description: | Isopthaloyl chloride acts as a crosslinking agent in various polymerization reactions. |
Packaging: | 1, 5 kg in poly bottle |
Packaging: | 100, 500 g in poly bottle |
Symbol | ![]() ![]() |
Signal word | Danger |
Hazard statements | H312 - H314 - H331 |
Precautionary statements | P260 - P280 - P301 + P330 + P331 - P303 + P361 + P353 - P304 + P340 + P311 - P305 + P351 + P338 |
Hazard Codes | T |
Risk Statements | 21-23-35 |
Safety Statements | 26-36/37/39-45 |
RIDADR | UN 2923 6.1(8) / PGI |
WGK Germany | WGK 1 |
Flash Point(F) | 356.0 °F - closed cup |
Flash Point(C) | 180 °C - closed cup |
Purity | ≥99% |
bp | 276 °C (lit.) |
mp | 43-44 °C (lit.) |
UNSPSC | 12162002 |