2,4-Dimethyl-1,3-pentadiene
[CAS# 1000-86-8]

Identification

• Classification: Chemical reagent >> Organic reagent >> Olefins (cyclic and non-cyclic)
• Name: 2,4-Dimethyl-1,3-pentadiene
• Synonyms: 2,4-Dimethylpenta-2,4-diene; NSC 123451
• Molecular Formula: C₇H₁₂
• Molecular Weight: 96.17
• CAS Registry Number: 1000-86-8
• EC Number: 213-677-4

Properties

• Solubility: Practically insoluble (0.056 g/L) (25 ºC), Calc.^*
• Density: 0.743 g/cm³ (20 ºC)^**
• Melting point: -114 ºC^***
• Boiling point: 94-96 ºC (760 Torr)^****
• Refractive index: 1.4506 (20 ºC)^*****
• Flash point: 10.0±0.0 ºC, Calc.^*

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2013 ACD/Labs)

^** Esafov, V. I.; Zhurnal Obshchei Khimii 1949, V19, P1063-76.

^*** "PhysProp" data were obtained from Syracuse Research Corporation of Syracuse, New York (US)

^**** Matsumoto, Masakatsu; Tetrahedron 1985, V41(11), P2147-54.

^***** Waterman, H. I.; Recueil des Travaux Chimiques des Pays-Bas et de la Belgique 1933, V52, P234-8.

Safety Data

• Hazard Symbols: F;Xi
• Risk Codes: R11;R36/37/38
• Safety Description: S16;S26;S36/37/39

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Eye irritation	Eye Irrit.	2	H319
Flammable liquids	Flam. Liq.	2	H225
Specific target organ toxicity - single exposure	STOT SE	3	H335

• Transport Information: UN 3295 3/PG 2