1,2-Butadiene (1.7) Chemical formula: C4H6 Valve fitting according DIN 477: Nr. 1 Gas cylinder size: 69,0 kg Downloads Material safety data sheets Sicherheitsdatenblatt (PDF, 162 KB)material safety data sheet (PDF, 158 KB) Standard specifications Spezifikation (PDF, 136 KB)standard specification (PDF, 136 KB)