34873

Heptane

suitable for HPLC, ≥99%

• Linear Formula: CH₃(CH₂)₅CH₃
• CAS Number: 142-82-5
• Molecular Weight: 100.20
• Beilstein: 1730763
• EC Number: 205-563-8
• MDL number: MFCD00009544
• PubChem Substance ID: 329755080

Properties

• vapor density: 3.5 (vs air)
• Quality Level: 100
• 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 A_max: ≤0.70; λ: 210 nm A_max: ≤0.40; λ: 220 nm A_max: ≤0.10; λ: 230 nm A_max: ≤0.05; λ: 245 nm A_max: ≤0.01; λ: 260 nm A_max: ≤0.01; λ: 400 nm A_max: ≤0.01
• greener alternative category: Aligned
• SMILES string: CCCCCCC
• InChI: 1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
• InChI key: IMNFDUFMRHMDMM-UHFFFAOYSA-N

Description

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.[1]

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).[2]

Packaging

100 mL in glass bottle

1, 6×1, 2, 4×2, 4×4 L in glass bottle

20 L in Nowpak™

20, 50 L in Pure-Pac™ 2

56 L in Pure-Pac™ 1

200 L in Pure-Pac™ 2

Features and Benefits

Greener alternative for hexane

Other Notes

What is a green solvent? A comprehensive framework for the environmental assessment of solvents

Tools and techniques for solvent selection: green solvent selection guides

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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Safety Information

• Pictograms: GHS02,GHS07,GHS08,GHS09
• Signal Word: Danger
• Hazard Statements: H225 - H304 - H315 - H336 - H410
• Precautionary Statements: P210 - P233 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• 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