Synonym(s): Di-n-butylacetylene Formula: CH3(CH2)3C C(CH2)3CH3 Formula weight: 138.26 Purity: 98% CAS Number: 1942-46-7 UN Number: UN3295 Hazard Class: 3 Packing Group: III Harmonized Tariff Code:  2901.29 Hazard Statements: H226 Flammable liquid and vapour. …