6-Hydroxynicotinic Acid CAS 5006-66-6

1. 6-Hydroxynicotinic acid CAS 5006-66-6 is a key metabolite in the microbial degradation of nicotine and nicotinic acid, and serves as an intermediate in the bacterial degradation pathway of these compounds .
2. 6-Hydroxynicotinic acid is exploited in diagnostic applications for the rapid identification of Gram-negative bacteria such as *Pseudomonas aeruginosa* in urinary tract infections, as only this pathogen produces it from nicotinic acid .
3. 6-Hydroxynicotinic acid is used as a building block in pharmaceutical and agrochemical synthesis, particularly for constructing antiviral and antitumor drugs, as well as modern insecticides .
4. Researchers utilize 6-Hydroxynicotinic acid in material science to create luminescent hybrid molecular materials for photophysical applications by grafting its hydroxyl group to a silica network .

1. 6-Hydroxynicotinic acid CAS 5006-66-6 must be stored in a tightly sealed container in a cool, dry, and well-ventilated environment, protected from light and heat, with recommended storage at 2-8°C or -20°C for long-term stability .
2. 6-Hydroxynicotinic acid should be kept away from incompatible materials such as strong oxidizing agents, strong acids, and strong alkalis to prevent hazardous reactions .
3. Personnel must wear chemical-resistant rubber gloves, chemical safety goggles, and protective clothing when handling this substance, as it is a moderate to severe irritant to skin and eyes .
4. Avoid inhalation of dust particles, ensure adequate ventilation in work areas, and wash thoroughly after handling, following safety statements S24/25 (avoid contact with skin and eyes) .

1. Isolate the spill area, ensure adequate ventilation, and wear full personal protective equipment including NIOSH/MSHA-approved respirator when 6-Hydroxynicotinic acid CAS 5006-66-6 is released .
2. Collect 6-Hydroxynicotinic acid by sweeping or vacuuming without creating dust, or use inert absorbent materials, and place into suitable closed containers for disposal .
3. Avoid creating dust clouds during cleanup to prevent respiratory exposure, and prevent the product from entering drains or water courses .
4. Dispose of collected 6-Hydroxynicotinic acid material according to local, state, and federal environmental regulations, using licensed chemical destruction or controlled incineration .

1. 6-Hydroxynicotinic acid CAS 5006-66-6 is not classified as highly flammable but may decompose under fire conditions, emitting toxic fumes including carbon monoxide, carbon dioxide, and nitrogen oxides .
2. Use water 6-Hydroxynicotinic acid spray, carbon dioxide, dry chemical powder, or foam to extinguish fires involving the product .
3. Firefighters should wear self-contained breathing apparatus and full protective clothing when handling burning 6-Hydroxynicotinic acid to prevent contact with skin and eyes and avoid hazardous decomposition gases .
4. During combustion, may emit irritant and toxic fumes; contain fire runoff to prevent environmental contamination .