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34873

Sigma-Aldrich

Heptane

greener alternative

suitable for HPLC, ≥99%

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Linear Formula:
CH3(CH2)5CH3
CAS Number:
Molecular Weight:
100.20
Beilstein:
1730763
EC Number:
MDL number:
PubChem Substance ID:

vapor density

3.5 (vs air)

Quality Level

vapor pressure

40 mmHg ( 20 °C)
83 mmHg ( 37.7 °C)

Assay

≥99%

form

liquid

autoignition temp.

433 °F

purified by

filtration through 0.2μm

expl. lim.

7 %

greener alternative product characteristics

Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.

technique(s)

HPLC: suitable

impurities

≤0.001% free acid (as CH3COOH)
≤0.01% water (Karl Fischer)
≤1 ppb fluorescence (quinine) at 254 nm
≤1 ppb fluorescence (quinine) at 365 nm

evapn. residue

≤0.0003%

color

APHA: ≤10

refractive index

n20/D 1.387 (lit.)

bp

98 °C (lit.)

mp

−91 °C (lit.)

density

0.684 g/mL at 25 °C (lit.)

UV absorption

λ: 200 nm Amax: ≤0.70
λ: 210 nm Amax: ≤0.40
λ: 220 nm Amax: ≤0.10
λ: 230 nm Amax: ≤0.05
λ: 245 nm Amax: ≤0.01
λ: 260 nm Amax: ≤0.01
λ: 400 nm Amax: ≤0.01

greener alternative category

SMILES string

CCCCCCC

InChI

1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3

InChI key

IMNFDUFMRHMDMM-UHFFFAOYSA-N

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1 of 4

This Item
32287246654650536
Heptane suitable for HPLC, ≥99%

Sigma-Aldrich

34873

Heptane

Heptane puriss. p.a., reag. Ph. Eur., ≥99% n-heptane basis (GC)

Sigma-Aldrich

32287

Heptane

Heptane anhydrous, 99%

Sigma-Aldrich

246654

Heptane

Heptane HPLC Plus, for HPLC, GC, and residue analysis, 99%

Sigma-Aldrich

650536

Heptane

vapor pressure

40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

vapor pressure

40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

vapor pressure

40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

vapor pressure

40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

assay

≥99%

assay

≥99% n-heptane basis (GC)

assay

99%

assay

≥98.5% (GC), 99%

form

liquid

form

liquid

form

liquid

form

liquid

autoignition temp.

433 °F

autoignition temp.

433 °F

autoignition temp.

433 °F

autoignition temp.

433 °F

expl. lim.

7 %

expl. lim.

7 %

expl. lim.

7 %

expl. lim.

7 %

General description

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. Heptane is an environmentally preferable solvent and greener alternative to hexane for chromatographic purification and thus has been enhanced for "Safer Solvents and Auxiliaries". Click here for more information.
Tools and techniques for solvent selection: green solvent selection guides.

Heptane (n-Heptane) is a linear hydrocarbon. Its cetane number has been reported to be 56.

Application

Greener alternatives to Hexane in HPLC.
Heptane (n-heptane) may be used to compose the solvent mixtures for the purification of N-acylpyrrolidine derivatives of fatty acid methyl esters (FAMEs) by TLC (Thin Layer Chromatography).

Features and Benefits

Greener alternative for hexane

Other Notes

Important notice
The article number 34873-4X2.5L will be discontinued. Please order the single bottle 34873-2.5L which is physically identical with the same exact specifications.

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Signal Word

Danger

Hazard Classifications

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

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

24.8 °F

Flash Point(C)

-4 °C


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Bacterial phospholipid molecular species analysis by ion-pair reversed-phase HPLC/ESI/MS.
Mazzella N, et al.
Journal of Lipid Research, 45(7), 1355-1363 (2004)
A comprehensive modeling study of n-heptane oxidation.
Curran HJ, et al.
Combustion and Flame, 114(1), 149-177 (1998)
Bing Chen et al.
Journal of hazardous materials, 188(1-3), 369-374 (2011-02-26)
The influence of the initial fuel temperature on the burning behavior of n-heptane pool fire was experimentally studied at the State Key Laboratory of Fire Science (SKLFS) large test hall. Circular pool fires with diameters of 100mm, 141 mm, and
Arun K Kota et al.
Advanced materials (Deerfield Beach, Fla.), 24(43), 5838-5843 (2012-08-30)
Hierarchically structured, superoleophobic surfaces are demonstrated that display one of the lowest contact angle hysteresis values ever reported - even with extremely low-surface-tension liquids such as n-heptane. Consequently, these surfaces allow, for the first time, even ≈2 μL n-heptane droplets
Gábor Csordás et al.
PloS one, 9(6), e98191-e98191 (2014-06-04)
In recent years, Drosophila melanogaster has become an attractive model organism in which to study the structure and development of the cellular immune components. The emergence of immunological markers greatly accelerated the identification of the immune cells (hemocytes), while the

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