3 5-dibromobenzonitrile CAS 97165-77-0

1. 3,5-Dibromobenzonitrile is a halogenated aromatic nitrile primarily used as a key intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty organic compounds .
2. 3 5-dibromobenzonitrile CAS 97165-77-0 serves as a versatile building block in organic synthesis for the preparation of substituted benzonitrile derivatives, where the bromine atoms enable selective cross-coupling reactions such as Suzuki-Miyaura, Sonogashira, and Buchwald-Hartwig couplings .
3. 3,5-Dibromobenzonitrile is employed in the synthesis of liquid crystal materials, organic semiconductors, and other functional materials for electronic and optoelectronic applications .
4. Researchers utilize 3 5-dibromobenzonitrile CAS 97165-77-0 as a reference standard in analytical chemistry and as a starting material for the preparation of various heterocyclic compounds and biologically active molecules .

1. 3,5-Dibromobenzonitrile must be stored in a tightly sealed container in a cool, dry, and well-ventilated environment, protected from light and moisture; recommended storage at 2-8°C or at room temperature in a cool, dark place .
2. 3 5-dibromobenzonitrile CAS 97165-77-0 is classified with GHS hazard statements H315 (Causes skin irritation), H319 (Causes serious eye irritation), and H335 (May cause respiratory irritation), with signal word "Warning" .
3. Personnel must wear chemical-resistant gloves, safety goggles with side-shields, and protective clothing when handling this substance, ensuring adequate ventilation in work areas .
4. Keep 3 5-dibromobenzonitrile CAS 97165-77-0 away from incompatible materials such as strong oxidizing agents, strong acids, and strong bases to prevent decomposition; wash thoroughly after handling .

1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including chemical-resistant gloves, safety goggles, and suitable dust respirator when 3,5-Dibromobenzonitrile is released .
2. Collect 3 5-dibromobenzonitrile CAS 97165-77-0 by sweeping or vacuuming without creating dust using non-sparking tools, and place into suitable closed containers for disposal .
3. Avoid creating dust clouds during cleanup to prevent respiratory exposure; prevent the product from entering drains or water courses .
4. Dispose of collected material according to local, state, and federal environmental regulations through licensed chemical destruction or controlled incineration .

1. 3,5-Dibromobenzonitrile is not classified as highly flammable but may decompose under fire conditions, emitting toxic fumes including carbon monoxide, carbon dioxide, hydrogen bromide, and nitrogen oxides (NOx) .
2. Use water spray, dry chemical powder, carbon dioxide, or alcohol-resistant foam to extinguish fires involving the product; do NOT use a direct water jet as 3 5-dibromobenzonitrile CAS 97165-77-0 may scatter burning material .
3. Firefighters should wear self-contained breathing apparatus in pressure-demand, MSHA/NIOSH approved, and full protective gear when handling burning 3,5-Dibromobenzonitrile due to hazardous decomposition gases generated by thermal decomposition .
4. During combustion, may emit irritant and toxic fumes; contain fire runoff to prevent environmental contamination .