Description

4-Methyloctane is a branched-chain aliphatic hydrocarbon belonging to the alkane family, widely employed as a high-purity reference standard and specialty solvent in analytical and industrial applications. It offers exceptional batch-to-batch consistency and low volatility-driven evaporation loss, making it ideal for precision calibration and controlled reaction environments. This compound is routinely utilized by pharmaceutical R&D labs, petrochemical testing facilities, environmental monitoring agencies, and advanced materials developers requiring traceable, inert hydrocarbon solvents. The 4-Methyloctane CAS NO 2216-34-4 is supplied under strict quality governance to meet global regulatory expectations.

Application

• Gas chromatography (GC) and GC–mass spectrometry (GC–MS) calibration standard for hydrocarbon retention time indexing
• Reference material in petroleum product analysis, including diesel and jet fuel hydrocarbon profiling
• Solvent for dissolving non-polar polymers and resins during formulation development and rheological testing
• Reaction medium in organometallic synthesis where low reactivity and thermal stability are critical
• Component in custom-blended hydrocarbon standards for emissions testing (e.g., EPA Method TO-15, ASTM D6348)
• Internal standard for quantitative analysis of C8–C10 alkanes in environmental soil and water extracts
• Matrix-matched spiking agent in food contact material migration studies
• Stabilizing diluent in high-sensitivity sensor calibration kits for hydrocarbon vapor detection

Basic Information

Product Name	4-Methyloctane
CAS No.	2216-34-4
Molecular Formula	C9H20
Molecular Weight	128.25 g/mol
Synonyms	4-Methyl-octane; 4-Methyloctane; 4-Methyloctane (ISO); 4-Methyl octane; 4-Methyl n-octane; 4-Methyl-C8H17; 4-Methyl-C8; Octane, 4-methyl-; 4-Methyloctane (CAS); 4-Methyloctan; 4-Methyloctano
EINECS	218-651-1

Quality Control

Our products undergo rigorous quality testing to ensure compliance with industry standards. Each batch of 4-Methyloctane is verified for identity, purity, and impurity profile using orthogonal methods including gas chromatography (GC-FID), nuclear magnetic resonance (NMR), and Fourier-transform infrared spectroscopy (FT-IR). Certificates of Analysis (COA) are available upon request and include assay ≥99.5%, residual solvent limits per ICH Q3C, and full chromatographic traceability. All manufacturing and testing processes adhere to ISO 9001:2015 and comply with REACH and TSCA regulatory frameworks.

Storage

Preserve in a tightly closed container, protected from light. Store at room temperature (15–25°C) in a well-ventilated area away from ignition sources. Keep away from strong oxidizing agents and avoid prolonged exposure to air to prevent potential peroxide formation over extended storage periods.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Odor	Characteristic hydrocarbon odor
Assay (GC)	≥99.5%
Identity (IR)	Conforms to reference spectrum
Boiling Point (°C)	142–144
Density (g/mL at 20°C)	0.725–0.730
Refractive Index (n20D)	1.398–1.402
Water Content (Karl Fischer)	≤0.05%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.