2-Naphthaldehyde CAS 66-99-9

1. 2-Naphthaldehyde is primarily used as a crucial intermediate in the synthesis of pharmaceuticals, fragrances, agrochemicals, and dyes . It is a versatile reactant in key organic transformations like asymmetric Mannich reactions and the synthesis of Hantzsch 1,4-dihydropyridines .
2. 2-Naphthaldehyde CAS 66-99-9 in the stereo-selective formation of bicyclo 2-siloxy-2-alkoxyoxetanes and is used as a catalytic agent and petrochemical additive . It also plays a role in developing fluorescent sensors for detecting metal ions like lead .
3. Applications of 2-Naphthaldehyde include its use in photochemical studies to investigate reactivity with olefins under Lewis acid catalysis and in biochemical research as a substrate for aldehyde dehydrogenase enzymes .

1. Store 2-Naphthaldehyde in a tightly sealed container under an inert gas (e.g., nitrogen or argon) in a cool, dry, and well-ventilated place, protected from light . Recommended storage temperatures vary from room temperature (in a cool, dark place) to long-term storage at -20°C .
2. Keep 2-Naphthaldehyde away from strong oxidizing agents and strong bases to prevent hazardous decomposition reactions, as it is air and moisture sensitive .
3. Always 2-Naphthaldehyde CAS 66-99-9 use appropriate personal protective equipment (PPE) including chemical-resistant gloves, safety goggles, and protective clothing. Use with adequate ventilation and avoid breathing dust and generating dusty conditions .

1. Immediately isolate the spill area and eliminate all ignition sources. Contain 2-Naphthaldehyde using inert, non-combustible absorbent material and avoid generating dusty conditions .
2. Carefully sweep up the spilled 2-Naphthaldehyde solid using clean, non-sparking tools, and place the collected material into a sealed, labeled chemical waste container for proper disposal according to local, state, and federal environmental regulations .
3. Personnel 2-Naphthaldehyde CAS 66-99-9 must wear suitable PPE during cleanup; provide adequate ventilation and prevent material from entering drains or waterways. Under fire conditions, irritating and highly toxic gases may be generated .

1. 2-Naphthaldehyde is classified as harmful if swallowed (H302), in contact with skin (H312), or if inhaled (H332) . It causes skin irritation (H315) and serious eye irritation (H319), and may cause respiratory irritation (H335). It is also noted to be a lachrymator (tear gas agent) .
2. 2-Naphthaldehyde is combustible with a flash point >100°C. Vapors may form explosive mixtures with air. Its thermal decomposition or combustion can produce toxic and irritating fumes, including carbon monoxide . Transport classification varies (UN 1988 Class 3 or not hazardous material) .
3. Always 2-Naphthaldehyde CAS 66-99-9 consult the specific Safety Data Sheet (SDS) for 2-Naphthaldehyde for complete hazard information, first-aid procedures (P305+P351+P338 for eyes, P301+P312+P330 for ingestion), and handling instructions. Precautionary statements include P261 (avoid breathing dust), P280 (wear protective gloves/eye protection), and P304+P340 (if inhaled) .