1,6-Heptadiyne

CAS NO.：2396-63-6
Empirical Formula: C7H8
Molecular Weight: 92.14
MDL number: MFCD00014925
EINECS: 219-253-5
SAFETY DATA SHEET (SDS)
Update Date: 2026-09-12 18:56:20

What is 1,6-Heptadiyne?

Chemical properties

clear yellow liquid

The Uses of 1,6-Heptadiyne

1,6-Heptadiyne may be used in the preparation of free-standing polymer films of poly(1,6-heptadiyne). Polymerization of 1,6-heptadiyne using an insoluble Zeigler-Natta catalyst affords soluble polymer having six-membered ring containing polyene. Ruthenium(II)-catalyzed reaction of a substituted 1,6-heptadiyne with norbornene affords a tandem [2+ 2+ 2]/[4+2] cycloaddition product and a [2+ 2+2] cycloadduct.

General Description

Polymerization of 1,6-heptadiyne using an insoluble Zeigler-Natta catalyst affords soluble polymer having six-membered ring containing polyene. Ruthenium(II)-catalyzed reaction of a substituted 1,6-heptadiyne with norbornene affords a tandem [2+ 2+ 2]/[4+2] cycloaddition product and a [2+ 2+2] cycloadduct. Cyclocopolymerization of 1,6-heptadiyne with dipropargyl ether under nitrogen atmosphere using KSCN, KBr and KI as initiators in N,N-dimethyl formamide has been studied.

Properties of 1,6-Heptadiyne

Melting point:	-85 °C
Boiling point:	111.5 °C (lit.)
Density	0.805 g/mL at 25 °C (lit.)
refractive index	n20/D 1.441(lit.)
Flash point:	49 °F
storage temp.	2-8°C
form	Liquid
color	Clear yellow
Specific Gravity	0.805
Water Solubility	Insoluble in water.
BRN	1731756
CAS DataBase Reference	2396-63-6(CAS DataBase Reference)
EPA Substance Registry System	1,6-Heptadiyne (2396-63-6)

Safety information for 1,6-Heptadiyne

Signal word	Danger
Pictogram(s)	Flame Flammables GHS02
GHS Hazard Statements	H225:Flammable liquids
Precautionary Statement Codes	P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.