Liquid Tetraethylenepentamine 112-57-2. Tepa is the name of it. It is used in the fragrance, flavour, fragrance and aroma industries as well as the chemical, pharmaceutical and soap and detergent industries. Storage: Keep items in a cool area. Keep the container securely shut and in a dry, well-ventilated area. Once opened, containers must be properly resealed and stored upright to avoid leaks.Its molecular weight is 189.31g/mol and chemical formula is C8H23N5.