2,3-Bis(2-sulfanylethylsulfanyl)propane-1-thiol

• Appearance: Colourless transparent liquid

• Purity (GC): ≥ 99.5% (Optical Grade)

• Color (Pt-Co): ≤ 8 (Crystal Clear)

• Refractive Index (20°C): 1.630 - 1.635

• Mercaptan Content: 61.5% - 63.5%

• Acid Value: ≤ 0.1 mgKOH/g

A trifunctional polythiol offering exceptional optical clarity and fast curing properties:

• Optical Lenses (High-Index):
  Key monomer for producing ultra-thin, lightweight 1.67 refractive index lenses (eyewear). Provides high Abbe number and impact resistance.

• Rapid Cure Epoxy Hardener:
  Acts as a low-temperature curing agent for epoxy adhesives in electronics (SMT) and consumer goods. Cures in minutes at room temperature when catalyzed with tertiary amines.

• UV/LED Curing:
  Used in Thiol-Ene systems to overcome oxygen inhibition and reduce shrinkage in coatings.

Packaging: 30kg Plastic Drum / 200kg Drum.

Storage: Sensitive to oxidation. Store in a cool, dry place tightly sealed under nitrogen blanket if possible.