34862-M

2,2,4-Trimethylpentane

suitable for HPLC, ≥99%

• Synonym(s): Isooctane
• Linear Formula: (CH₃)₂CHCH₂C(CH₃)₃
• CAS Number: 540-84-1
• Molecular Weight: 114.23
• Beilstein: 1696876
• EC Number: 208-759-1
• MDL number: MFCD00008943
• UNSPSC Code: 12190000
• PubChem Substance ID: 329755071
• NACRES: NA.21

Properties

• vapor density: 3.9 (vs air)
• vapor pressure: 41 mmHg ( 21 °C)
• Assay: ≥99%
• form: liquid
• autoignition temp.: 745 °F
• expl. lim.: 6 %
• technique(s): HPLC: suitable
• impurities: ≤0.0005% non-volatile matter; ≤0.001% free acid (as CH₃COOH); ≤0.01% water (Karl Fischer)
• transmittance: 210 nm, ≥20%; 235 nm, ≥80%; 270 nm, ≥98%
• refractive index: n20/D 1.391 (lit.)
• bp: 98-99 °C (lit.)
• mp: −107 °C (lit.)
• density: 0.692 g/mL at 25 °C (lit.)
• 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

Description

General description

2,2,4-Trimethylpentane (TMP, Isooctane) is a saturated, branched hydrocarbon. It has been reported to be nephrotoxic to male rats. Density and viscosity of TMP at various temperatures (198K - 348K) and pressures (100MPa) has been evaluated. It has been indentified as nephrotoxicity inducing component in unleaded gasoline.

Application

2,2,4-Trimethylpentane (TMP, Isooctane) has been used for the isolation of mercury species during the HPLC cold vapor atomic fluorescence spectrometric (HPLC-CVAFS) quantification of MeHg in various biological samples. It may be used to evaluate various physical properties (densities, viscosities, refractive indexes and surface tensions) of the binary mixtures of TMP and cyclohexane.

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Safety Information

• Pictograms: GHS02,GHS08,GHS07,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): -12.00 °C - closed cup