The corresponding substance of CAS 105-60-2 is Caprolactam, which is the core monomer for synthesizing nylon-6 (polycaprolactam). It is a white crystalline solid at room temperature, with the molecular formula C ₆ H ₁ NO and a molecular weight of 113.16.

Core physical and chemical properties
-Chinese name: Caprolactam; English name: Caprolactam/ε – Caprolactam
-Molecular formula/weight: C ₆ H ₁₁ NO/113.16
-Appearance: White crystalline or powder, with an oily texture and a slight mint/acetone odor
-Melting point: 68-71 ℃; Boiling point: approximately 268-272 ℃
-Density: approximately 1.01-1.03 g/cm ³ (solid); Flash point: 136-152 ℃
-Solubility: Very soluble in water (~4560 g/L, 20 ℃), soluble in various organic solvents such as ethanol, ether, benzene, etc
-EINECS number: 203-313-2; UN number: 3082 (dangerous goods)

main purpose
1. Polymer raw materials: About 90% are used for ring opening polymerization to produce polycaprolactam (nylon-6), which is then used to make nylon fibers (textile, industrial silk, tire cord, etc.)
2. Engineering plastics: About 10% are used to manufacture nylon-6 plastics, which are applied in gears, bearings, pipes, electrical insulation components, medical devices, etc
3. Other fields: A small amount is used for synthesizing lysine, coating additives, rubber modification, and pharmaceutical intermediates

Safety and Hazards
-Hazard classification: Flammable solids/liquids (depending on form), hazardous substances (harmful by inhalation, ingestion, transdermal absorption)
-Health hazards: Long term exposure can cause neurasthenia syndrome, respiratory irritation, nosebleeds, dry and cracked skin, and dermatitis
-Key points of protection: Avoid inhaling dust and direct skin contact; Thermal decomposition produces toxic nitrogen oxides; Should be moisture-proof, fireproof, and kept away from strong oxidants

Products :

epsilon-Caprolactam CAS 105-60-2
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