The CAS registry number of 1-Hexen-4-yne is 5009-11-0. This chemical's molecular formula is C₆H₈ and molecular weight is 80.13. Its systematic name is called hex-1-en-4-yne.

Physical properties of 1-Hexen-4-yne: (1)ACD/LogP: 2.09; (2)ACD/LogD (pH 5.5): 2; (3)ACD/LogD (pH 7.4): 2; (4)ACD/BCF (pH 5.5): 26; (5)ACD/BCF (pH 7.4): 26; (6)ACD/KOC (pH 5.5): 359; (7)ACD/KOC (pH 7.4): 359; (8)#Freely Rotating Bonds: 1; (9)Index of Refraction: 1.434; (10)Molar Refractivity: 27.577 cm³; (11)Molar Volume: 105.975 cm³; (12)Surface Tension: 25.447 dyne/cm; (13)Density: 0.756 g/cm³; (14)Flash Point: -29.046 °C; (15)Enthalpy of Vaporization: 28.432 kJ/mol; (16)Boiling Point: 53.5 °C at 760 mmHg; (17)Vapour Pressure: 267.857 mmHg at 25°C.

You can still convert the following datas into molecular structure:
(1)SMILES: CC#CCC=C
(2)InChI: InChI=1/C6H8/c1-3-5-6-4-2/h3H,1,5H2,2H3
(3)InChIKey: RIGMRFDIWRRSMS-UHFFFAOYAF