Our products mainly organic solvents like pentane, hexane ,heptane ,octane, etc. Mainly used in vegetable oil extraction, organic synthesis, pharmaceutical intermediate, rubber,adhesive, and electronic cleaning industry enterprises.N-HEPTANE 99% CAS: 142-82-5 Molecular Formula: CH3(CH2)5CH3 Mainly used as standard substance to test octane number, also used as material for anesthetic, solvent and organic synthesis.