# NIOSH Pocket Guide to Chemical Hazards
Vinyl cyclohexene dioxide | CAS 106-87-6
C8H12O2 | RTECS RN8640000
Synonyms & Trade Names 1-Epoxyethyl-3,4-epoxy-cyclohexane; 4-Vinylcyclohexene diepoxide; 4-Vinyl-1-cyclohexene dioxide | DOT ID & Guide
Exposure Limits | NIOSH REL: Ca TWA 10 ppm (60 mg/m3) [skin] See Appendix A
OSHA PEL†: none
IDLH Ca [N.D.] | Conversion 1 ppm = 5.73 mg/m3
Physical Description Colorless liquid.
MW: 140.2 | BP: 441°F | FRZ: -164°F | Sol: High
VP: 0.1 mmHg | IP: ? |  | Sp.Gr: 1.10
Fl.P(oc): 230°F | UEL: ? | LEL: ? |
Class IIIB Combustible Liquid: Fl.P. at or above 200°F.
Incompatibilities & Reactivities Alcohols, amines, water [Note: Slowly hydrolyzes in water.]
Measurement Methods None available
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Water wash immediately Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact
Symptoms In animals: irritation eyes, skin, respiratory system; testicular atrophy; leukopenia (reduced blood leukocytes), necrosis thymus; skin sensitization; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, blood, thymus, reproductive system Cancer Site [in animals: skin tumors]
See also: INTRODUCTION