2,2,4-Trimethylpentane (Isooctane) ≥99.5% HPLC Grade | HiPerSolv CHROMANORM 4 L

Isooctane for Spectroscopy, Uvasol® - 2.5L

SKU: 1047182500
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For laboratory, institutional, and professional use only. Not available for residential or personal purchase. Orders are subject to verification.

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Isooctane (2,2,4-trimethylpentane), Uvasol® grade, is a high spectral purity solvent specifically refined for UV/Vis and infrared spectroscopy applications requiring minimal background absorbance and fluorescence interference.

With ≥99.8% purity (GC), controlled acidity and alkalinity, low evaporation residue, and certified transmission values across critical UV wavelengths, this solvent is suitable for sensitive analytical measurements and trace-level detection workflows.

Uvasol® solvents are refined to reduce UV, IR, and fluorescence contamination, supporting reliable baseline stability and accurate spectroscopic analysis.

Suitable for:

UV/Vis spectroscopy

Infrared spectroscopy

Fluorescence measurements

Trace-level analytical work

Chromatographic sample preparation

Flammable liquid — handle and store according to safety guidelines.

Chemical Name: Isooctane
IUPAC Name: 2,2,4-Trimethylpentane
CAS Number: 540-84-1
Molecular Formula: C8H18
Molecular Weight: 114.23 g/mol
Grade: Uvasol® (Spectroscopy Grade)
Assay: ≥99.8% (GC)
Quality Level: 100
Technique Suitability: UV/Vis spectroscopy
Form: Liquid

SPECIFICATIONS

Isooctane, Uvasol® for Spectroscopy

Chemical Formula: C8H18
CAS Number: 540-84-1
EC Number: 208-759-1
MDL Number: MFCD00008943
Beilstein/REAXYS Number: 1696876

Assay (GC): ≥99.8%
Form: Liquid
Quality Level: 100

Physical Properties

Melting Point: −107 °C (lit.)

Density: 0.692 g/mL at 25 °C (lit.)

Vapor Pressure: 41 mmHg (21 °C)

Vapor Density: 3.9 (vs air)

Flash Point: −12 °C

Autoignition Temperature: 745 °F

Saturation Concentration in Air: 239 g/m³ (20 °C)

Purity & Impurities

Evaporation Residue: ≤0.0002%

Water: ≤0.005%

Acidity: ≤0.0002 meq/g

Alkalinity: ≤0.0002 meq/g

Color: ≤10 Hazen

Fluorescence Limits

≤1.0 ppb (as quinine) at 254 nm

≤1.0 ppb (as quinine) at 365 nm

UV Transmission

205 nm: ≥30%

215 nm: ≥65%

220 nm: ≥80%

225 nm: ≥85%

235 nm: ≥90%

245 nm: ≥98%

≥255 nm: ≥99%

Maximum Absorbance

205 nm: ≤0.52

215 nm: ≤0.19

220 nm: ≤0.10

225 nm: ≤0.07

235 nm: ≤0.05

245 nm: ≤0.01

≥255 nm: ≤0.004

Meets requirements for “Specific use spectroscopy” according to ACS and Reag. Ph Eur.

Storage Temperature: 2–30 °C

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