cis-1,2-Dimethylcyclohexane
Synonym(s):cis-Hexahydro-o-xylene
- CAS NO.：2207-01-4
- Empirical Formula: C8H16
- Molecular Weight: 112.21
- MDL number: MFCD00063621
- EINECS: 218-621-2
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-09-12 18:56:34
What is cis-1,2-Dimethylcyclohexane?
Chemical properties
Clear, colorless, flammable liquid with a mild characteristic odor.
Definition
ChEBI: Cis-1,2-dimethylcyclohexane is a cycloalkane.
General Description
cis-1,2-Dimethylcyclohexane has been oxidized by O2 in the presence of iron(II)-bispidine complexes. It has been known to form plastic crystals which can be supercooled to show a glass transition at a temperature Tg.
Source
Component of gasoline (quoted, Verschueren, 1983)
Environmental Fate
Chemical/Physical. Complete combustion in air yields carbon dioxide and water vapor. cis-1,2- Dimethylcyclohexane will not hydrolyze because it has no hydrolyzable functional group.
Properties of cis-1,2-Dimethylcyclohexane
| Melting point: | -49.99°C |
| Boiling point: | 129-130 °C(lit.) |
| Density | 0.796 g/mL at 25 °C(lit.) |
| vapor pressure | 28 mm Hg ( 37.7 °C) |
| refractive index | n |
| Flash point: | 54 °F |
| solubility | Soluble in acetone, alcohol, benzene, ether, ligroin (Weast, 1986); miscible with cyclohexane and
cycloheptane. |
| form | Liquid |
| pka | >14 (Schwarzenbach et al., 1993) |
| color | Colorless to Almost colorless |
| Water Solubility | It is soluble in water. 6.0 g(1)/106 g(2) at 25°C. |
| Henry's Law Constant | 0.354(atm?m3/mol) at 25 °C (Hine and Mookerjee, 1975) |
| CAS DataBase Reference | 2207-01-4(CAS DataBase Reference) |
| EPA Substance Registry System | Cyclohexane, 1,2-dimethyl-, (1R,2S)-rel- (2207-01-4) |
Safety information for cis-1,2-Dimethylcyclohexane
| Signal word | Danger |
| Pictogram(s) |
 Flame Flammables GHS02  Health Hazard GHS08 |
| GHS Hazard Statements |
H225:Flammable liquids H304:Aspiration hazard |
| Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P233:Keep container tightly closed. P240:Ground/bond container and receiving equipment. P241:Use explosion-proof electrical/ventilating/lighting/…/equipment. P280:Wear protective gloves/protective clothing/eye protection/face protection. 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. P370+P378:In case of fire: Use … for extinction. P405:Store locked up. P403+P235:Store in a well-ventilated place. Keep cool. P501:Dispose of contents/container to..… |
Computed Descriptors for cis-1,2-Dimethylcyclohexane
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