59240
Isoprene
analytical standard
동의어(들):
2-Methyl-1,3-butadiene
조직 및 계약 가격을 보려면 로그인를 클릭합니다.
크기 선택
보기 변경
제품정보 (DICE 배송 시 비용 별도)
Linear Formula:
CH2=CHC(CH3)=CH2
CAS 번호:
Molecular Weight:
68.12
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
EC Number:
201-143-3
Beilstein/REAXYS Number:
969158
MDL number:
grade
analytical standard
Quality Level
vapor density
2.35 (vs air)
vapor pressure
8.82 psi ( 20 °C)
assay
≥99.5% (GC)
autoignition temp.
428 °F
shelf life
limited shelf life, expiry date on the label
contains
~0.02% 4-tert-butylcatechol as stabilizer
expl. lim.
10 %
technique(s)
HPLC: suitable, gas chromatography (GC): suitable
refractive index
n20/D 1.422
bp
34 °C (lit.)
mp
−146 °C (lit.)
density
0.681 g/mL at 20 °C, 0.681 g/mL at 25 °C (lit.)
application(s)
cleaning products
cosmetics
environmental
food and beverages
personal care
petroleum
format
neat
storage temp.
2-8°C
SMILES string
CC(=C)C=C
InChI
1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3
InChI key
RRHGJUQNOFWUDK-UHFFFAOYSA-N
General description
Isoprene is a reactive aliphatic hydrocarbon that originates as a byproduct of cholesterol synthesis.
This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here
Application
Isoprene may be used as an analytical reference standard for the quantification of the analyte in human breath samples using substrate-integrated hollow waveguide mid-infrared sensors and thermal desorption gas chromatography with ultraviolet detection.
Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.
Other Notes
Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.
signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2
저장 등급
3 - Flammable liquids
wgk
WGK 3
flash_point_f
-65.2 °F - closed cup
flash_point_c
-54 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves
Towards the determination of isoprene in human breath using substrate-integrated hollow waveguide mid-infrared sensors
Perez-Guaita D, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 8(2), 183-190 (2014)
Determination of isoprene in human expired breath using solid-phase microextraction and gas chromatography?mass spectrometry
Hyspler R, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 739(1), 183-190 (2000)
Determination of isoprene in human breath by thermal desorption gas chromatography with ultraviolet detection
Jones W.A, et al.
Journal of Chromatography. B, Biomedical Sciences and Applications, 672(1), 1-6 (1995)