HX0076

Heptane Low UV Cutoff

OmniSolv^®

• Synonym(s): Heptane, n-Heptane, high purity solvents
• Linear Formula: CH₃(CH₂)₅CH₃
• CAS Number: 142-82-5
• Molecular Weight: 100.20
• Beilstein/REAXYS Number: 1730763
• MDL number: MFCD00009544
• UNSPSC Code: 12191502
• EC Index Number: 205-563-8
• Assay: ≥99% n-heptane basis; ≥99.9% (saturated C7 hydrocarbons)
• Technique(s): HPLC: suitable; LC/MS: suitable; gas chromatography (GC): suitable
• Bp: 98 °C (lit.)
• Vapor pressure: 40 mmHg ( 20 °C); 83 mmHg ( 37.7 °C)

Properties

• vapor density: 3.5 (vs air)
• Quality Level: 100
• 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.)
• bp: 98 °C (lit.)
• 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 A_max: ≤1.00; λ: 200 nm A_max: ≤0.80; λ: 210 nm A_max: ≤0.30; λ: 220 nm A_max: ≤0.15; λ: 260 nm A_max: ≤0.01
• greener alternative category: Aligned
• shipped in: ambient
• storage temp.: room temp
• 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

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.[1]
• In the determination of pharmaceutical compounds.[2]

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

Safety Information

• pictograms: GHS02,GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H225,H304,H315,H336,H410
• pcodes: 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: Central nervous system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 2
• flash_point_f: 24.8 °F - closed cup
• flash_point_c: -4 °C - closed cup