2,2,4-Trimethylpentane
2,2,4-Trimethylpentane (CAS: 540-84-1) is a branched alkane with a molecular weight of 114.23 g/mol. Also known as isooctane, it is a highly flammable, volatile liquid with a characteristic odour. It serves as a key component in gasoline and is widely used as a solvent and standard in various analytical applications, particularly in determining octane ratings.
- IUPAC
- Isooctane
- Synonyms
- 540-84-1Isooctane2,2,4-Trimethylpentane
Solvent Applications
2,2,4-Trimethylpentane is employed as a non-polar solvent in various laboratory and industrial processes. Its low reactivity and specific solvency properties make it suitable for extractions and chromatography.
Octane Rating Standard
As isooctane, this compound is the primary reference fuel for the octane rating scale in gasoline. It is assigned an octane number of 100, serving as a benchmark for fuel antiknock characteristics.
Absorption Spectrum Analysis
This chemical is suitable for absorption spectrum analysis, enabling researchers and quality control professionals to study the light absorption properties of various substances.
Chemical Synthesis
It can be used as a reagent or solvent in specific organic synthesis pathways where its branched structure and non-polar nature are beneficial.
| Molecular weight | 114.23 |
|---|---|
| Linear formula | (CH3)2CHCH2C(CH3)3 |
| Assay | ≥99.5% |
| Boiling point | 98-99 °C(lit.) |
| Density | 0.692 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.391(lit.) |
| Vapour pressure | 41 mmHg (21 °C) |
| Melting point | −107 °C(lit.) |
| Vapour density | 3.9 (vs air) |
| Autoignition temp | 745 °F |
| Suitability | suitable for absorption spectrum analysis |
Hazard statements
- H225Highly flammable liquid and vapour
- H304May be fatal if swallowed and enters airways
- H315Causes skin irritation
- H336May cause drowsiness or dizziness
- H410Very toxic to aquatic life with long-lasting effects
Precautionary statements
- P210Keep away from heat, sparks and open flames. No smoking
- P261Avoid breathing dust, fume, gas or vapours
- P273Avoid release to the environment
- P301IF SWALLOWED
- P331Do NOT induce vomiting
- P501Dispose of contents and container per local regulations
| Protective equipment | Eyeshields, Faceshields, full-face respirator (US), Gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter |
|---|---|
| Flash point | -12 °C / 10.4 °F |
| Transport (UN / ADR) | UN 1262 3 / PGII |
| Water hazard class (WGK, DE) | 2 |
| Hazard codes (EU) | F,Xn,N |
| Risk statements (R) | 11-38-50/53-65-67 |
| Safety statements (S) | 9-16-29-33-60-61-62 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is 2,2,4-Trimethylpentane used for?
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2,2,4-Trimethylpentane is primarily used as a standard for determining the octane rating of gasoline, as a solvent in various analytical techniques, and in certain chemical synthesis applications.
What is the CAS number and formula for 2,2,4-Trimethylpentane?
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The CAS number for 2,2,4-Trimethylpentane is 540-84-1, and its linear formula is (CH3)2CHCH2C(CH3)3.
What grade and purity does Tech Serve Solutions supply?
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Tech Serve Solutions supplies 2,2,4-Trimethylpentane with an assay of ≥99.5%. We do not represent this product as USP, BP, EP, or any other pharmacopoeia grade unless explicitly stated.
How is 2,2,4-Trimethylpentane handled and stored?
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2,2,4-Trimethylpentane is highly flammable (Flash Point: -12 °C) and can cause skin irritation, drowsiness, or dizziness. Store in a well-ventilated area away from ignition sources and oxidising agents. Always use appropriate personal protective equipment, including eyeshields and gloves.
Is 2,2,4-Trimethylpentane regulated or a controlled substance?
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Based on the provided data, 2,2,4-Trimethylpentane (CAS 540-84-1) is not listed as a controlled substance. However, it is classified as hazardous (H225, H304, H315, H336, H410).
How is 2,2,4-Trimethylpentane packed and shipped?
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2,2,4-Trimethylpentane is shipped as UN 1262, Class 3, Packing Group II, in accordance with international transport regulations for hazardous materials. Specific packaging will depend on quantity and destination.
How can I request a sample or quote for 2,2,4-Trimethylpentane?
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To request a sample or a quote, please contact the TSS sales team through our website or by phone, providing the product name and CAS number (540-84-1).
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