1. Organotin Intermediates and Organic Synthesis Reagents (Platform Compounds) ⚗️:
Preparation of tributyltin oxide, carboxylates, thiolates, amine salts, etc.; used for introducing tributyltin groups, and in the synthesis of pharmaceutical/pesticide intermediates such as prostaglandins; typical process: anhydrous/inert atmosphere, corrosion-resistant equipment; key points: strong corrosiveness and hydrolytic properties, strict temperature control and exhaust gas absorption.

2. Marine Antifouling Coatings (Restricted Core Use) 🛳️:
Releases tin ions to inhibit the attachment of marine organisms such as barnacles and algae, reducing sailing resistance and fuel consumption; typical products: bottom paint for ocean-going vessels/yachts; key points: high aquatic toxicity and bioaccumulation, banned or restricted in most regions globally, only used in exempted scenarios, alternatives are preferred.

3. Wood Preservation and Mold Prevention (Restricted Use) 🪵:
Inhibits fungal and termite infestation, extending the lifespan of outdoor wood; typical products: dock piles, utility poles, outdoor wooden walkways/guardrails; key points: strict adherence to environmental regulations and restricted use lists, proper construction protection and waste liquid disposal.

4. Catalysts for Condensation/Esterification/Addition Reactions 🧪:
Catalyzes transesterification, esterification, silane polycondensation, olefin addition/cyclization; typical fields: synthesis of plasticizers, lubricants, antioxidants, pharmaceutical/pesticide intermediates; key points: conduct small-scale tests to verify activity and by-products, control pH and sulfur/amine impurities.

5. Rodent Repellent/Anti-Rodent Cable Coatings (Restricted Use) 🖱️:
Added to cable sheath coatings to reduce the risk of rodent damage; typical scenarios: outdoor/underground cables, communication cables; key points: strong neurotoxicity, limited to compliant scenarios, low-toxicity alternatives are preferred.

6. Specialty Glass Hot-End Coating Precursors (Niche Product) 🥤:
High-temperature decomposition generates a tin oxide film, improving wear resistance, scratch resistance, and pressure resistance; typical products: beer bottles, beverage bottles, laboratory glassware; key points: matching the furnace temperature curve to ensure uniform film thickness and adhesion.

7. Pharmaceutical / Pesticide Intermediates (Fine Chemicals) 💊:
Used in key synthesis steps for drugs such as prostaglandins and pesticides; key points: high purity, low impurities, meeting GMP/GLP and environmental requirements.