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Merck
CN

U407

Undecane

≥99%

Synonym(s):

n-Undecane, Hendecane

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About This Item

Linear Formula:
CH3(CH2)9CH3
CAS Number:
1120-21-4
Molecular Weight:
156.31
UNSPSC Code:
12352100
NACRES:
NA.22
PubChem Substance ID:
24900644
EC Number:
214-300-6
Beilstein/REAXYS Number:
1697099
MDL number:
MFCD00008959
Assay:
≥99%

Key Documents

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InChI key

RSJKGSCJYJTIGS-UHFFFAOYSA-N

InChI

1S/C11H24/c1-3-5-7-9-11-10-8-6-4-2/h3-11H2,1-2H3

SMILES string

CCCCCCCCCCC

vapor density

5.4 (vs air)

vapor pressure

<0.4 mmHg ( 20 °C)

assay

≥99%

refractive index

n20/D 1.417 (lit.)

bp

196 °C (lit.)

mp

−26 °C (lit.)

density

0.74 g/mL at 25 °C (lit.)

Quality Level

100

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Application

Undecane is mainly used as a model n-alkane in studies relating to viscosities, excess molar enthalpies and vapor-liquid equilibrium of binary alkane mixtures.

pictograms

FlameHealth hazard
GHS02,GHS08

signalword

Danger

hcodes

H226,H304

Hazard Classifications

Asp. Tox. 1 - Flam. Liq. 3

supp_hazards

EUH066

Storage Class

3 - Flammable liquids

wgk

WGK 3

flash_point_f

140.0 °F - closed cup

flash_point_c

60 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
SHBS8426
SHBS7639
SHBR5338
SHBS0903
SHBR1019

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Measurements of the viscosity of n-heptane, n-nonane, and n-undecane at pressures up to 70 MPa.
Assael M J and Papadaki M
International Journal of Thermophysics, 12(5), 801-810 (1991)
Excess enthalpies of decan-1-ol+ n-pentane,+ n-hexane,+ n-heptane,+ n-octane,+ n-nonane,+ n-decane, and+ n-undecane at 298.15 K.
Kumaran M K and Benson G C
The Journal of Chemical Thermodynamics, 16(2), 175-182 (1984)
A general correlation of vapor?liquid equilibria in hydrocarbon mixtures.
Chao K C and Seader J D
AIChE Journal, 7(4), 598-605 (1961)
Maya M Makatini et al.
Bioorganic & medicinal chemistry letters, 21(8), 2274-2277 (2011-03-25)
In this study, we present the first account of pentacycloundecane (PCU) peptide based HIV-protease inhibitors. The inhibitor exhibiting the highest activity made use of a natural HIV-protease substrate peptide sequence, that is, attached to the cage (PCU-EAIS). This compound showed
C Yohannan Panicker et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 75(5), 1559-1565 (2010-03-17)
Fourier-transform-Raman and infrared spectrum of 4-azatricyclo [5.2.2.0(2,6)] undecane-3,5,8-trione were recorded and analyzed. The vibrational wavenumbers were examined theoretically using the Gaussian03 set of quantum chemistry codes, and the normal modes were assigned by potential energy distribution (PED) calculations. The first
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