4-Chlorobenzonitrile CAS 623-03-0

1. 4-Chlorobenzonitrile CAS 623-03-0 serves as a valuable precursor for synthesizing amides, which are key functional groups in pharmaceuticals, agrochemicals, and polymers .
2. 4-Chlorobenzonitrile is a crucial intermediate in producing dyes and active pharmaceutical ingredients (APIs), including the anti-inflammatory drug diclofenac and the red pigment quinacridone used in plastics and paints .
3. 4-Chlorobenzonitrile is explored in medicinal chemistry research for potential anti-cancer and anti-microbial properties and is used in studies on reaction mechanisms .

1. Store 4-Chlorobenzonitrile CAS 623-03-0 in a tightly sealed container in a cool, dry, and well-ventilated area, away from incompatible substances like strong oxidizing agents .
2. Keep 4-Chlorobenzonitrile at ambient temperatures, refrigerated (2-8°C), or below +30°C depending on the supplier, and stable under normal handling conditions .
3. Handle 4-Chlorobenzonitrile using appropriate personal protective equipment including gloves, safety goggles, and a dust mask, and avoid dust formation .

1. Isolate the 4-Chlorobenzonitrile CAS 623-03-0 spill area, wear full protective equipment, and avoid dust generation when handling solid 4-Chlorobenzonitrile .
2. Sweep up spilled 4-Chlorobenzonitrile into sealed, labeled containers for disposal according to environmental regulations .
3. Prevent spilled 4-Chlorobenzonitrile from entering drains or waterways, as discharge into the environment must be avoided .

1. 4-Chlorobenzonitrile CAS 623-03-0 is harmful if swallowed (H302), in contact with skin (H311/H312), or if inhaled (H332), and causes serious eye irritation (H319) .
2. 4-Chlorobenzonitrile is harmful to aquatic life with long-lasting effects (H412) and has a flash point of 108°C .
3. 4-Chlorobenzonitrile is classified for transport as a hazardous substance (UN 3439, Hazard Class 6.1, PG III) with GHS signal word "Danger" .