1,2- Pentanediol (CAS 5343-92-0) Market Research Report 2025 '@about1,2 pentanediol is known as a clear, colorless to slightly yellow oily liquid with a pungent smell. The liquid has the molecular formula C5H12O2 and the molecular weight 104.14. 1,2 pentanediol has a flash point of 104 В°C and a boiling point of 206 ...