1,2-Diaminopropane (CAS 78-90-0) Market Research Report 2025 '@about1,2-diaminopropane (1,2-Propanediamine; Propylenediamine; Propylene diamine) is an organic chemical that belongs to alphatic amines. The product is a colorless liquid with an ammonia-like smell. 1,2-diaminopropane has a melting point of -37 В°C, a ...