butyl chloroformate; chloroformic acid butyl ester

butyl chloroformate; chloroformic acid butyl ester is a flammable liquid (flash point below 60 °C, Category 3). Store in a dedicated flammable storage cabinet, away from oxidisers and ignition sources. Use explosion-proof electrical equipment in storage areas. Containers must be kept tightly closed and grounded during transfer to prevent static discharge.

butyl chloroformate; chloroformic acid butyl ester is corrosive to skin, eyes, or metals. Store in acid-resistant or alkali-resistant cabinets as appropriate. Do not store in metal containers. Secondary containment (drip trays) is required. Segregate from incompatible substances such as strong oxidisers.

butyl chloroformate; chloroformic acid butyl ester has acute toxicity (oral, dermal, or inhalation) classified as Category 1–3. Access to this substance must be restricted to trained personnel. Store in a locked, well-ventilated area. Exposure monitoring and medical surveillance may be required under OSHA 29 CFR 1910.1000 or equivalent regulations.

This substance carries the signal word DANGER, indicating the more severe hazard categories under GHS/CLP. Facilities handling butyl chloroformate; chloroformic acid butyl ester should ensure a written hazard communication programme, including current SDS, employee training records, and GHS-compliant labelling on all containers.