ChemicalBook > CAS DataBase List > 2,3-Dimethylpentane

2,3-Dimethylpentane

Product Name: 2,3-Dimethylpentane
CAS No.: 565-59-3
Chemical Name: 2,3-Dimethylpentane
Synonyms: ALKANE C7;2,3-dimethyl-pentan;2,3-DIMETHYLPENTANE;3,4-DIMETHYLPENTANE;1,2,3-TRIMETHYLBUTANE;2,3-Dimethylpentane>2-ETHYL-3-METHYLBUTANE;Pentane, 2,3-dimethyl-;2,3-Dimethylpentane,97%;2,3-DIMETHYLPENTANE, 99+%
CBNumber: CB3853847
Molecular Formula: C7H16
Formula Weight: 100.2
MOL File: 565-59-3.mol

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2,3-Dimethylpentane Property

Melting point:: -107.55°C (estimate)
Boiling point:: 89-90 °C (lit.)
Density: 0.695 g/mL at 25 °C (lit.)
vapor density: 3.45 (vs air)
vapor pressure: 2.35 psi ( 37.7 °C)
refractive index: n20/D 1.392(lit.)
Flash point:: 20 °F
storage temp.: Flammables area
solubility: Soluble in acetone, alcohol, benzene, chloroform, and ether (Weast, 1986)
form: Liquid
pka: >14 (Schwarzenbach et al., 1993)
color: Colorless to Almost colorless
Odor Threshold: 4.5ppm
explosive limit: ~7%
Water Solubility: Insoluble in water.
BRN: 1718734
Henry's Law Constant: 1.72(atm?m³/mol) at 25 °C (Mackay and Shiu, 1981)
Exposure limits: ACGIH: TWA 400 ppm; STEL 500 ppm
Dielectric constant: 1.9399999999999999
CAS DataBase Reference: 565-59-3(CAS DataBase Reference)
EPA Substance Registry System: 2,3-Dimethylpentane (565-59-3)

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Safety

Hazard Codes: N-Xn-F,N,Xn,F
Risk Statements: 36/37/38-67-65-50/53-38-11
Safety Statements: 16-26-36/37/39-61-9
RIDADR: UN 3295 3/PG 2
WGK Germany: 3
RTECS: SA0428000
Autoignition Temperature: 639 °F
TSCA: Yes
HazardClass: 3
PackingGroup: II
HS Code: 29011000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

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/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P273Avoid release to the environment.

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P331Do NOT induce vomiting.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: D173207
Product name: 2,3-Dimethylpentane
Purity: ≥99%
Packaging: 5g
Price: $78.1
Updated: 2025/07/31

Sigma-Aldrich

Product number: 41085
Product name: 2,3-Dimethylpentane
Purity: analytical standard
Packaging: 5ml
Price: $213
Updated: 2025/07/31

TCI Chemical

Product number: D0768
Product name: 2,3-Dimethylpentane
Purity: >90.0%(GC)
Packaging: 25mL
Price: $99
Updated: 2025/07/31

Sigma-Aldrich

Product number: D173207
Product name: 2,3-Dimethylpentane
Purity: ≥99%
Packaging: 25g
Price: $231
Updated: 2025/07/31

Sigma-Aldrich

Product number: D173207
Product name: 2,3-Dimethylpentane
Purity: ≥99%
Packaging: 100g
Price: $609
Updated: 2025/07/31

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2,3-Dimethylpentane Chemical Properties,Usage,Production

Chemical Properties

clear colorless liquid

Physical properties

Clear, colorless, flammable liquid with an odor resembling hexane. An odor threshold concentration of 4.5 ppm_v was reported by Nagata and Takeuchi (1990).

Uses

It is used in the liquid-phase oxidation of 2,4-dimethylpentane and in a study on the preparation and the physical constants of a number of alkanes and cycloalkanes.

General Description

2,3-Dimethylpentane belongs to the class of volatile organic compounds (VOCs).

Source

In diesel engine exhaust at a concentration of 0.9% of emitted hydrocarbons (quoted, Verschueren, 1983). Schauer et al. (1999) reported 2,3-dimethylpentane in a diesel-powered medium-duty truck exhaust at an emission rate of 720 μg/km.
California Phase II reformulated gasoline contained 2,3-dimethylpentane at a concentration of 29.4 g/kg. Gas-phase tailpipe emission rates from gasoline-powered automobiles with and without catalytic converters were 5.34 and 714 mg/km, respectively (Schauer et al., 2002).

Environmental Fate

Photolytic. A photooxidation rate constant of 3.4 x 10^-12 cm³/molecule?sec was reported for the gas-phase reaction of 2,3-dimethylpentane and OH radicals (Atkinson, 1990).
Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. 2,3- Dimethylpentane will not hydrolyze because it has no hydrolyzable functional group.

Toxics Screening Level

The initial threshold screening level (ITSL) for 2,3-dimethylpentane is 3,500 μg/m3 based on an 8 hr. averaging time.

2,3-Dimethylpentane Preparation Products And Raw materials

Raw materials

Preparation Products

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View Lastest Price from 2,3-Dimethylpentane manufacturers

Henan Fengda Chemical Co., Ltd

Product: 2,3-Dimethylpentane 565-59-3
Price: US $100.00-1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: g-kg-tons, free sample is available
Release date: 2023-12-26

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