Skip to Content
Merck

Key Documents

View All Documentation

59070

2-Methylbutane

puriss. p.a., ≥99.5% (GC)

Synonym(s):

Isopentane

Sign In to View Organizational & Contract Pricing.

Select a Size

Change View

About This Item

Linear Formula:
CH3CH2CH(CH3)2
CAS Number:
78-78-4
Molecular Weight:
72.15
UNSPSC Code:
12191502
NACRES:
NA.07
PubChem Substance ID:
329758567
EC Number:
201-142-8
Beilstein/REAXYS Number:
1730723
MDL number:
MFCD00009338
Assay:
≥99.5% (GC)
Technique(s):
GC/GC: suitable
Bp:
30 °C (lit.)
Vapor pressure:
11.17 psi ( 20 °C)
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

vapor density

2.6 (vs air)

vapor pressure

11.17 psi ( 20 °C)

grade

puriss. p.a.

assay

≥99.5% (GC)

form

liquid

autoignition temp.

788 °F

expl. lim.

8.3 %

technique(s)

GC/GC: suitable

impurities

≤0.05% water

evapn. residue

≤0.001%

refractive index

n20/D 1.354

bp

30 °C (lit.)

mp

-160 °C

density

0.62 g/mL at 25 °C (lit.)

cation traces

Al: ≤0.5 mg/kg, Ba: ≤0.1 mg/kg, Bi: ≤0.1 mg/kg, Ca: ≤0.5 mg/kg, Cd: ≤0.05 mg/kg, Co: ≤0.02 mg/kg, Cr: ≤0.02 mg/kg, Cu: ≤0.02 mg/kg, Fe: ≤0.1 mg/kg, K: ≤0.5 mg/kg, Li: ≤0.1 mg/kg, Mg: ≤0.1 mg/kg, Mn: ≤0.02 mg/kg, Mo: ≤0.1 mg/kg, Na: ≤0.5 mg/kg, Ni: ≤0.02 mg/kg, Pb: ≤0.1 mg/kg, Sr: ≤0.1 mg/kg, Zn: ≤0.1 mg/kg

SMILES string

CCC(C)C

storage temp.

2-8°C

InChI

1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3

InChI key

QWTDNUCVQCZILF-UHFFFAOYSA-N

General description

2-Methylbutane (Isopentane) is a branched chain alkane. It undergoes bromination at 75°C to afford 2-bromo-2-methyl butane. Its Raman spectra in vapor and solid phases at low temperatures (-196°C) have been investigated.

Application

2-Methylbutane may be used in the following studies:
  • As starting reagent for the synthesis of isoprene.
  • Preparation of C5 and C6 alkyl nitrates.

Still not finding the right product?

Explore all of our products under 2-Methylbutane

signalword

Danger

Hazard Classifications

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3

target_organs

Central nervous system

supp_hazards

EUH066

Storage Class

3 - Flammable liquids

wgk

WGK 2

flash_point_f

-59.8 °F - closed cup

flash_point_c

-51 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Group 4: Flammable liquids + Special flammables + Hazardous rank I

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library