Reported in EPA TSCA Inventory.

OSHA PEL: TWA 25 ppm (skin)
ACGIH TLV: TWA 20 ppm, STEL 50 ppm (skin); Confirmed Animal Carcinogen
DFG MAK: Confirmed Animal Carcinogen with Unknown Relevance to Humans
NIOSH REL: (Ketone (Cyclohexanone)) TWA 100 mg/m³
DOT Classification:  3; Label: Flammable Liquid

For occupational chemical analysis use OSHA: #01 or NIOSH: Ketones I (Desorption in CS₂), 1300.

Cyclohexanone, with the CAS register number 108-94-1, is a colorless to pale yellow liquid with a pleasant odor. It is the organic compound with the formula C₆H₁₀O. Its EINECS register number is 203-631-1. Cyclohexanone is slightly soluble in water (5-10 g/100 mL), but miscible with ethanol. The substance is stable and combustible, which is incompatible with strong oxidizing agents.Cyclohexanone can form an explosive peroxide with H₂O₂ and react vigorously with oxidizing materials, such as nitric acid. It is easily ignited by heat, sparks or flames. It will form vapors when it is mixed with air. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas. Its container may explode when heated.

Physical properties about Cyclohexanone are: (1)ACD/LogP: 0.821; (2)ACD/LogD (pH 5.5): 0.82; (3)ACD/LogD (pH 7.4): 0.82; (4)ACD/BCF (pH 5.5): 2.48; (5)ACD/BCF (pH 7.4): 2.48; (6)ACD/KOC (pH 5.5): 66.58; (7)ACD/KOC (pH 7.4): 66.58; (8)#H bond acceptors: 1; (9)Index of Refraction: 1.453; (10)Molar Refractivity: 27.801 cm³; (11)Molar Volume: 102.952 cm³; (12)Polarizability: 11.021 10-24cm³; (13)Surface Tension: 32.523998260498 dyne/cm; (14)Density: 0.953 g/cm³; (15)Flash Point: 46.667 °C; (16)Enthalpy of Vaporization: 39.248 kJ/mol; (17)Boiling Point: 155.749 °C at 760 mmHg; (18)Vapour Pressure: 2.98600006103516 mmHg at 25°C

Preparation of Cyclohexanone: Cyclohexanone can be prepared from cyclohexanol by oxidation with chromic oxide. In addition, it can be produced by the partial hydrogenation of phenol:

C₆H₅OH + 2 H₂ → (CH₂)₅CO

Besides, Cyclohexanone is also produced by the oxidation of cyclohexane in air, typically using cobalt catalysts:

C₆H₁₂ + O₂ → (CH₂)₅CO + H₂O

Uses of Cyclohexanone: The great majority of Cyclohexanone is used as the precursors in production of adipic acid, caprolactam, Nylon 6,6 and Nylon 6. It can be used to make nylon, as a chemical reaction medium, and as a solvent, for instance, used in paint, especially in the paint which contains nitrocellulose, polymer or copolymer of chloroethene and polymer of methylacrylic acid ester. Cyclohexanone can also be used in dyeing and as levelling agent of faded light silk.

When you are using Cyclohexanone, you should be very cautious about it. The substance is flammable and harmful, which is harmful by inhalation. What's more, you must avoid contact with your eyes.

You can still convert the following datas into molecular structure of Cyclohexanone:
(1)Canonical SMILES: C1CCC(=O)CC1
(2)InChI: InChI=1S/C6H10O/c7-6-4-2-1-3-5-6/h1-5H2
(3)InChIKey: JHIVVAPYMSGYDF-UHFFFAOYSA-N

Toxicity of Cyclohexanone: