3,3-Dimethylpentane
- CAS NO.：562-49-2
- Empirical Formula: C7H16
- Molecular Weight: 100.2
- MDL number: MFCD00009322
- EINECS: 209-230-8
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 03:28:50
What is 3,3-Dimethylpentane?
Chemical properties
clear colorless liquid
Physical properties
Colorless, mobile liquid with an odor resembling heptane or gasoline. Evaporates when spilled forming combustible vapors.
The Uses of 3,3-Dimethylpentane
3,3-Dimethylpentane Is used in organic synthesis & as gasoline component, as Pharmaceutical intermediates. It was used in the development and evaluation of the epiocular-eye irritation test.
General Description
3,3-Dimethylpentane isomerizes via a methyl shift mechanism on oxygen-exposed tungsten carbides.
Environmental Fate
Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. 3,3- Dimethylbutane will not hydrolyze because it has no hydrolyzable functional group.
Properties of 3,3-Dimethylpentane
| Melting point: | -135 °C (lit.) |
| Boiling point: | 86 °C (lit.) |
| Density | 0.693 g/mL at 25 °C (lit.) |
| vapor pressure | 2.77 psi ( 37.7 °C) |
| refractive index | n |
| 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 | Clear colorless |
| explosive limit | ~7% |
| Water Solubility | Soluble in acetone, water, chloroform, alcohol & ether. In water ( 5.92 mg/kg ) dissolves at 25°C. |
| BRN | 1696854 |
| Henry's Law Constant | 1.85(atm?m3/mol) at 25 °C (Mackay and Shiu, 1981) |
| Exposure limits | ACGIH: TWA 400 ppm; STEL 500 ppm |
| Dielectric constant | 1.9399999999999999 |
| EPA Substance Registry System | Pentane, 3,3-dimethyl- (562-49-2) |
Safety information for 3,3-Dimethylpentane
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Exclamation Mark Irritant GHS07  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H225:Flammable liquids H304:Aspiration hazard H315:Skin corrosion/irritation H336:Specific target organ toxicity,single exposure; Narcotic effects H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P273:Avoid release to the environment. P331:Do NOT induce vomiting. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for 3,3-Dimethylpentane
New Products
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