2,3-Dichlorobenzoyl Cyanide (DBC)

Laboratory chemical and synthetic intermediate used in the manufacture of organic substances. It is supplied as a solid (typically a powder) and should be handled to avoid dust generation.

CAS No: 77668-42-9

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Formula

C₈H₃Cl₂NO

Main Uses

Laboratory reagent

Appearance

Solid

Handling

Avoid formation and inhalation of dust

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Safety Highlights

2,3-Dichlorobenzoyl cyanide is not explicitly classified in the provided SDS under GHS/CLP, but precaution is required. Inhalation may irritate respiratory tract; repeated or prolonged exposure may cause sensitization in susceptible individuals.

Flammable Liquid

Not classified as a flammable liquid. However, in a fire or on heating, it may decompose to release toxic gases (CO, CO₂, NOₓ, HCl).

Toxic on Contact

Limited acute toxicity data available; not formally classified, but dust may cause respiratory irritation and prolonged/repeated exposure may cause sensitization in susceptible individuals.

Corrosive Agent

Not classified as corrosive, but can cause irritation to skin, eyes, and respiratory tract upon contact or inhalation of dust.

Emergency Measures

Move to fresh air; seek medical attention if symptoms develop.

Proper Storage

Store tightly closed in a cool, dry, well-ventilated area under inert gas. Protect from moisture (hygroscopic) and keep away from acids, acid chlorides, acid anhydrides, and strong oxidizers.

Regulatory ID

CAS No: 77668-42-9 | Formula: C₈H₃Cl₂NO | Not classified under EC 1272/2008 GHS/CLP based on provided SDS.

Environmental Care

Prevent release into drains, waterways, or soil. Collect spills without generating dust and dispose of in accordance with local regulations.

PPE Required

Safety goggles with side shields, chemical-resistant gloves, protective clothing; use a P95/P1 respirator or higher in dusty or poorly ventilated areas.

Frequently Asked Questions

Provides quick-reference answers on 2,3-Dichlorobenzoyl Cyanide’s hazard status, safe storage requirements, recommended PPE, spill handling procedures, and fire safety precautions.

Is 2,3-Dichlorobenzoyl Cyanide classified as hazardous?

The provided SDS does not assign a formal GHS/CLP classification, but caution is warranted—dust can irritate the respiratory tract and repeated exposure may sensitize. Treat exposures seriously and use controls.

How should it be stored?

Store in a tightly closed container in a cool, dry, well-ventilated area under inert gas. Protect from moisture (the material is hygroscopic) and keep away from acids, acid chlorides, acid anhydrides, and strong oxidizers.

What personal protective equipment is recommended?

Use safety goggles, chemical-resistant gloves, and protective clothing. If dust is generated or ventilation is inadequate, wear a particulate respirator (e.g., P95/P1) or higher-level protection as appropriate.

What should be done in case of a spill?

Avoid creating dust. Sweep or shovel up the material into suitable closed containers for disposal. Prevent entry into drains or the environment. Ensure adequate ventilation during cleanup.

What happens if it’s involved in a fire?

Extinguish with water spray, alcohol-resistant foam, dry chemical, or CO₂. Fire or heat decomposition can emit carbon monoxide, carbon dioxide, nitrogen oxides, and hydrogen chloride—firefighters must wear self-contained breathing apparatus and full protective gear.

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