ISOPRENE

78-79-5

2-Methyl-1,3-butadiene

2-Methylbuta-1,3-diene

Isopentadiene

2-Methylbutadiene

2-Methyldivinyl

1,3-Butadiene, 2-methyl-

beta-Methylbivinyl

isopreno

isoterpene

Isopren

3-Methyl-1,3-butadiene

CH2=C(CH3)CH=CH2

.beta.-Methylbivinyl

NSC 9237

Naturalrubber

CCRIS 6253

HSDB 620

EINECS 201-143-3

UNII-0A62964IBU

9003-31-0

9006-04-6

DTXSID2020761

NATURAL RUBBER

CHEBI:35194

0A62964IBU

NSC-9237

DTXCID20761

NSC9237

EC 201-143-3

ISOPRENE (IARC)

ISOPRENE [IARC]

Rubber, natural

UN1218

Caoutchouc

Elastomers

Ebonite

Heveaplus

Impervia

Rubber

Latex particles

Nafka

Natural latex

India rubber

Nafka kristalgom

Dynatex LA

Dynatex GTZ

Thiokol NVT

LATZ latex

2-methyl-butadiene

Isoprene, inhibited

Harub 5LV

Heveacrumb SMR 5L

2-methyl-1

Lorival R 25

Hartex 102HR

Cartex 600

Fultite FB 010K

Fultite FB 520

Hartex 103

Fultite FB 3001

Iotex C 60

Isoprene, >=99%

Kagetex FA 2005

ISOPRENE [HSDB]

E 218 (rubber)

Mitsuwa RC paper Cement

ISOPRENE [MI]

Defo 700

Elastic materials, rubber

UNII-2LQ0UUW8IN

Lotol L 9241

2LQ0UUW8IN

Be Be Tex 1223

bmse000844

Defo 1000

ISNA 5

2-methyl-buta-1,3-diene

AMA 7

CSV 1

Isoprene, analytical standard

Mar DR 1135

68877-32-7

UN 1218 (Salt/Mix)

DRC 60

CHEMBL1566132

Isoprene (Stabilized with TBC)

WLN: 1UY1&1U1

HSDB 6772

DTXSID60185761

GLN 200

GNL 150

Isoprene (1 mg/mL in Methanol)

JLX 105

JLX 113

KDP 150

CV 50

CV 60

IR 25

IR 68

AMY37001

EINECS 232-689-0

Tox21_200067

5L-TP0203

CS 700

HC 106

MFCD00008600

AKOS000119971

CCG-266006

FB 3001

CAS-78-79-5

NCGC00091078-01

NCGC00091078-02

NCGC00257621-01

PD088096

I0160

NS00001388

EN300-19669

Q271943

Isoprene, inhibited [UN1218] [Flammable liquid]

J-509898

InChI=1/C5H8/c1-4-5(2)3/h4H,1-2H2,3H

Z104474660

Isoprene, 99%, contains <1000 ppm p-tert-butylcatechol as inhibitor

26796-44-1

9041-65-0

The Henry's Law constant for isoprene is estimated as 0.077 atm-cu m/mole(SRC) derived from its vapor pressure, 550 mm Hg(1), and water solubility, 642 mg/L(2). This Henry's Law constant indicates that isoprene is expected to volatilize rapidly from water surfaces(3). Based on this Henry's Law constant, the volatilization half-life from a model river (1 m deep, flowing 1 m/sec, wind velocity of 3 m/sec)(3) is estimated as 2.4 hours(SRC). The volatilization half-life from a model lake (1 m deep, flowing 0.05 m/sec, wind velocity of 0.5 m/sec)(3) is estimated as 3.3 days(SRC). Isoprene's estimated Henry's Law constant indicates that volatilization from moist soil surfaces may occur(SRC). The potential for volatilization of isoprene from dry soil surfaces may exist(SRC) based upon its vapor pressure(1).
Literature: (1) Zwolinski BJ, Wilhoit RC; Handbook of Vapor Pressures and Heats of Formation of Hydrocarbons and Related Compounds. API44-TRC101 College Station, TX: Thermodynamics Res Ctr p. 48 (1971) (2) McAuliffe C; J Phys Chem 70: 1267-75 (1966) (3) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 15-1 to 15-29 (1990)

The Koc of isoprene is estimated as 61(SRC), using a log Kow of 2.42(1) and a regression-derived equation(2). According to a classification scheme(3), this estimated Koc value suggests that isoprene is expected to have high mobility in soil.
Literature: (1) Chemicals Inspection and Testing Institute. Japan Chemical Industry Ecology - Toxicology and Information Center. ISBN 4-89074-101-1 (1992) (2) Lyman WJ et al; Handbook of Chemical Property Estimation Methods. Washington, DC: Amer Chem Soc pp. 4-9 (1990) (3) Swann RL et al; Res Rev 85: 17-28 (1983)