Catalog Number: LC9908 | CAS No: 540-84-1

2,2,4-Trimethylpentane (Isooctane) HPLC

• MF : (CH3)2CHCH2C(CH3)3 | • MW : 114.23

• PubChem CID : 10907 | • UN Number : 1262

• EC Number : 208-759-1 | • MDL Number : MFCD00008943

• Beilstein : 1696876

• Synonym(s) : 2,2,4-Trimethylpentane, Isobutyltrimethylmethane, iso-Octane, Isooctane

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2,2,4-Trimethylpentane (Isooctane) HPLC CAS: 540-84-1 | M.F: (CH3)2CHCH2C(CH3)3 | M.W: 114.23, Buy now for reliable and reproducible results from LiChrom HPLC Solvents at Chemical World.

2,2,4-Trimethylpentane (Isooctane) HPLC (CAS: 540-84-1) is a high-purity, non-polar hydrocarbon solvent with the molecular formula (CH3)2CHCH2C(CH3)3 and molecular weight of 114.23 g/mol. It is a clear, colorless liquid supplied for high-performance liquid chromatography and related analytical procedures. The controlled impurity profile and reproducible elution characteristics support chromatographic separation, method development, and routine quality control requiring stable analytical performance.

Applications

2,2,4-Trimethylpentane (TMP, Isooctane) has been applied to isolate mercury species during HPLC cold vapor atomic fluorescence spectrometric (HPLC-CVAFS) quantification of MeHg in different biological samples.
It can be utilized for determining the density, viscosity, refractive index, and surface tension of binary mixtures containing TMP and cyclohexane.

Key Characteristics

HPLC Grade Purity: Supplied with controlled purity levels to meet the requirements of high-performance liquid chromatography applications.
Non-Polar Solvent Characteristics: Exhibits suitable solvent power for non-polar analytes and facilitates effective elution and separation in normal-phase HPLC.
Low UV Absorbance: Helps reduce background interference from the detector in UV-based detection systems when used in validated methods.
Stable Chromatographic Performance: Helps maintain reproducible retention times, consistent baselines, and repeatable analytical results between runs.
Cost-Effective Analytical Solvent: Combines reliable HPLC performance with reasonable cost, making it suitable for routine analysis and high-throughput laboratory workflows.

Overview

2,2,4-Trimethylpentane (Isooctane) HPLC is a saturated, branched hydrocarbon used in analytical HPLC procedures and specialized laboratory research. Its alternative names include isooctane, isobutyltrimethylmethane, 2,2,4-trimethylpentane, iso-octane, 2,4,4-trimethylpentane, i-octane, and isobutyltrimethylethane. The compound is insoluble in water and has an odor characteristic of petroleum distillates. The solvent has been used in analytical research for isolating mercury species during HPLC-CVAFS quantification. It has also been used to evaluate physical properties of TMP and cyclohexane binary mixtures, including density, viscosity, refractive index, and surface tension.

For laboratories seeking 2,2,4-Trimethylpentane (Isooctane) HPLC, Chemical World provides LiChrom HPLC Solvents for liquid chromatography and analytical applications. The product is available in various packaging options, with provisions for bulk quantities and larger laboratory requirements. Contact Chemical World for current pricing, availability, packaging options, bulk orders, and purchasing assistance.

About Brand

LiChrom products are designed specifically for Liquid Chromatography. LiChrom products exceed the rigorous requirement of HPLC analysis in various industries. Apart from HPLC- solvents, the LiChrom series encompasses HPLC-grade buffer salts, and HPLC ion pair reagents. These products provide the highest levels of accuracy and precision, as well as reproducibility of results,ensuring that your chromatography requirements will be met.

Chemical World provides the best laboratory brands that provide a constant and reliable result for any kind of experiment. Our range of high-quality laboratory brands is complete and is available in various scientific fields. ChemieR supplies high-purity chemicals to be used in reliable laboratories, cUSP supplies certified and standard solutions which can be used right away to assess accurately, and TriStains provides high-quality histological stains and indicators to be used in order to visualize accurately. LiChrom is the provider of liquid chromatography using high-grade reagents, and Bluster is the provider of high-grade solvents used in gas chromatography. EKS focuses on electronics-grade reagents that are used in advanced and sensitive analysis. These brands assure the research, analytical, and industrial laboratories with trusted quality, consistency, and performance. To get your product details, specifications, or to seek any purchasing assistance, visit our site chemicalworlds.com or email our sales team sales@chemicalworlds.com. We are happy to service your laboratory requirements with professional and fast service.

Properties

Quality Level

300

Vapor Density

3.9 (vs air)

Vapor Pressure

41 mmHg ( 21 °C)

Assay

≥99.5% (GC)

Form

liquid

autoignition temp.

745 °F

expl. lim.

6 %

technique(s)

impurities

≤0.0003 meq/g Acidity ≤0.005% Sulfur compounds (as S) ≤0.01% Water

color

APHA: ≤10

transmittance

250-420 nm, ≥98%

refractive index

n20/D 1.391 (lit.)

98-99 °C (lit.)

−107 °C (lit.)

density

0.692 g/mL at 25 °C (lit.)

UV absorption

application(s)

SMILES string

CC(C)CC(C)(C)C

InChI

1S/C8H18/c1-7(2)6-8(3,4)5/h7H,6H2,1-5H3

InChI key

NHTMVDHEPJAVLT-UHFFFAOYSA-N

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

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

10.4 °F - closed cup

Flash Point(C)

-12 °C - closed cup

Safety Data Sheets (SDS), Product Specification (PS) and Certificates of Analysis (COA) click Document Button

Frequently Asked Questions

1. What laboratory applications are suitable for Isooctane HPLC?

Isooctane HPLC is a non-polar hydrocarbon solvent intended for chromatographic and analytical laboratory work. It can support appropriate separation procedures, solvent studies, and method-development workflows requiring a non-polar medium.

2. Why is 2,2,4-trimethylpentane considered a non-polar solvent?

Its molecular structure consists primarily of carbon and hydrogen atoms, without strongly polar functional groups. This makes it useful in procedures where non-polar solvent characteristics are important.

3. How can Isooctane HPLC help with chromatographic method development?

Analysts can evaluate its influence on analyte retention and elution behavior in suitable chromatographic systems. It may be considered when optimizing separation conditions for compounds compatible with non-polar solvents.

4. What is the molecular formula of 2,2,4-trimethylpentane?

The molecular formula is C8H18, and its molecular weight is approximately 114.23 g/mol. The compound is commonly known as isooctane.

5. Is Isooctane HPLC the same as n-octane?

No. Isooctane, specifically 2,2,4-trimethylpentane, is a branched-chain hydrocarbon, whereas n-octane has a straight carbon chain. Their molecular formulas are identical, but their molecular structures and physical properties differ.

6. What makes a high-purity grade important for this solvent?

Unwanted impurities may affect chromatographic background, retention behavior, or analytical reproducibility. Selecting an appropriate HPLC-grade solvent helps support methods that depend on controlled solvent quality.

7. Can Isooctane be used in non-polar compound separation?

It can be considered for suitable methods involving non-polar compounds, particularly where hydrocarbon solvent characteristics are required. Actual performance depends on the stationary phase, analyte properties, and experimental conditions.

8. What appearance and general chemical properties are associated with Isooctane?

Isooctane is a colorless, volatile liquid hydrocarbon. Its relatively non-polar character distinguishes it from oxygen-containing solvents such as alcohols and ethers.

9. Where can users find the specifications and safety information for Isooctane HPLC?

The product documentation, where available, provides information about product quality and handling. Review the Product Specification, SDS, and COA to check applicable requirements, safety guidance, and batch information.

10. How can customers order Isooctane HPLC from Chemical World?

Customers in the USA can purchase Isooctane HPLC through Chemical World. The sales team can assist with current pricing, stock availability, and bulk-order inquiries.

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