Isoprene

$14.56 - $1711

Price

Brand	Packaging	Price	Product name
Alfa Aesar L14619	100ml	$36.4	Isoprene, 99%, stab. with ca 0.02% 4-tert-butylcatechol
Alfa Aesar L14619	500ml	$55.4	Isoprene, 99%, stab. with ca 0.02% 4-tert-butylcatechol
Chem-Impex 39210	500ML	$45.43	Isoprene(stabilizedwithTBC),≥99%(GC)Hazmat
Chem-Impex 39210	25ML	$14.56	Isoprene(stabilizedwithTBC),99%(GC)
Medical Isotopes, Inc. 70969	100g	$1075	Isoprene
Sigma-Aldrich 464953	200l	$1711	Isoprene
Sigma-Aldrich 59240	1mL	$49.5	Isoprene
Sigma-Aldrich I19551	18L	$879	Isoprene
Sigma-Aldrich I19551	500ml	$61.1	Isoprene
Sigma-Aldrich 8.21258	1L	$154	2-Methyl-1,3-butadiene

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Melting point	323-329 °C(lit.)
Boiling point	34 °C(lit.)
Density	0.681 g/mL at 25 °C(lit.)
vapor density	2.35 (vs air)
vapor pressure	8.82 psi ( 20 °C)
refractive index	n20/D 1.422(lit.)
Flash point	−65 °F
storage temp.	Store at <= 20°C.
solubility	0.7g/l
form	solid
pka	>14 (Schwarzenbach et al., 1993)
color	Clear colorless to very pale yellow
Odor	petroleum-like odor
Odor Threshold	0.048ppm
explosive limit	1-9.7%(V)
Water Solubility	0.07 g/100 mL
FreezingPoint	-145.96℃
λmax	231nm(neat)(lit.)
Merck	14,5201
BRN	969158
Henry's Law Constant	(x 10^-2 atm?m³/mol): 3.45 at 18 °C (dynamic stripping cell-MS, Karl et al., 2003)
Dielectric constant	2.1（25℃）
Stability	Stability Extremely flammable. Readily forms explosive mixtures with air. Note low flash point, low boiling point, high vapour pressure. Unstable - prone to spontaneous polymerization. May contain a polymerization inhibitor. Incompatible with strong oxidizing agents.
LogP	2.42 at 20℃
CAS DataBase Reference	78-79-5(CAS DataBase Reference)
IARC	2B (Vol. 60, 71) 1999
NIST Chemistry Reference	1,3-Butadiene, 2-methyl-(78-79-5)
EPA Substance Registry System	Isoprene (78-79-5)