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Merck
CN

HX0076

庚烷

greener alternative

OmniSolv®

别名:

Heptane, n-Heptane, high purity solvents

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线性分子式:
CH3(CH2)5CH3
化学文摘社编号:
142-82-5
分子量:
100.20
EC Index Number:
205-563-8
UNSPSC Code:
12191502
Beilstein/REAXYS Number:
1730763
MDL number:
MFCD00009544
Assay:
≥99% n-heptane basis, ≥99.9% (saturated C7 hydrocarbons)
Technique(s):
HPLC: suitable, LC/MS: suitable, gas chromatography (GC): suitable
Vapor pressure:
40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

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SMILES string

CCCCCCC

InChI

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

InChI key

IMNFDUFMRHMDMM-UHFFFAOYSA-N

vapor density

3.5 (vs air)

vapor pressure

40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)

product line

OmniSolv®

assay

≥99% n-heptane basis, ≥99.9% (saturated C7 hydrocarbons)

form

liquid

autoignition temp.

433 °F

expl. lim.

7 %

greener alternative product characteristics

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

sustainability

Greener Alternative Product

technique(s)

HPLC: suitable, LC/MS: suitable, gas chromatography (GC): suitable

impurities

≤0.02% Water (H2O)

evapn. residue

≤1 ppm

color

APHA: ≤10

refractive index

n20/D 1.387 (lit.)

Quality Level

100

mp

−91 °C (lit.)

transition temp

flash point -4 °C

solubility

0.05 g/L

density

0.684 g/mL at 25 °C (lit.)

UV cutoff

≤193 nm

UV absorption

λ: 193 nm Amax: ≤1.00, λ: 200 nm Amax: ≤0.80, λ: 210 nm Amax: ≤0.30, λ: 220 nm Amax: ≤0.15, λ: 260 nm Amax: ≤0.01

greener alternative category

Aligned

shipped in

ambient

storage temp.

room temp

相关类别

General description

Heptane Low UV Cutoff is a non-polar solvent specifically refined to exhibit minimal absorbance in the low ultraviolet (UV) range. This makes it an ideal choice for UV detection methods, particularly in HPLC, UV-Vis spectroscopy, and analytical chemistry workflows where UV transparency is critical.
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 compared to hexane and thus align with "Safer Solvents and Auxiliaries". Click here for more information.

Application

Heptane Low UV Cutoff can be used as a solvent:
  • For the extraction of extracellular hydrocarbons from the biomass.
  • In the determination of pharmaceutical compounds.

Packaging

is packaged in 4L amber glass bottle

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Assay (n-heptane): 99.0% min
Assay (saturated C7 hydrocarbons): 99.9% min
Color (APHA): 10 max
Evaporation residue: 1ppm max
Filtered through 0.2 m filter: To pass test
Fluorescence (as quinine base): 250ppt max
Form: Clear liquid
Infrared Spectrum: Conforms to standard
UV Abs. at 193 nm: 1.00AU max
UV Abs. at 200 nm: 0.80AU max
UV Abs. at 210 nm: 0.30AU max
UV Abs. at 220 nm: 0.15AU max
UV Abs. at 260 nm: 0.01AU max
UV Cut-off: 193vnm max
Water (H2O): 0.02% max

Legal Information

OMNISOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

signalword

Danger

Hazard Classifications

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

target_organs

Central nervous system

存储类别

3 - Flammable liquids

wgk

WGK 2

flash_point_f

24.8 °F - closed cup

flash_point_c

-4 °C - closed cup

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