Cyclohexene oxide

STRONG ODOR

0.967 @ 25 °C/4 °C

COLORLESS LIQUID

SOL IN ALC, ETHER, ACETONE; INSOL IN WATER

VERY SOL IN BENZENE; SOL IN CHLOROFORM

81 °C CC

129-130 °C

GREATER THAN -10 °C

INDEX OF REFRACTION: 1.4503 @ 25 °C/D

Colorless liquid; [HSDB]

1158；1158；1152

This chemical does not meet GHS hazard criteria for 3.2% (5 of 158) of reports.

Danger

H226 (95.6%): Flammable liquid and vapor [Warning Flammable liquids]；H302 (96.2%): Harmful if swallowed [Warning Acute toxicity, oral]；H311 (84.8%): Toxic in contact with skin [Danger Acute toxicity, dermal]；H312 (20.9%): Harmful in contact with skin [Warning Acute toxicity, dermal]；H314 (77.8%): Causes severe skin burns and eye damage [Danger Skin corrosion/irritation]；H318 (58.9%): Causes serious eye damage [Danger Serious eye damage/eye irritation]；H331 (72.2%): Toxic if inhaled [Danger Acute toxicity, inhalation]；H341 (52.5%): Suspected of causing genetic defects [Warning Germ cell mutagenicity]

P203, P210, P233, P240, P241, P242, P243, P260, P261, P262, P264, P264+P265, P270, P271, P280, P301+P317, P301+P330+P331, P302+P352, P302+P361+P354, P303+P361+P353, P304+P340, P305+P354+P338, P316, P317, P318, P321, P330, P361+P364, P362+P364, P363, P370+P378, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement)

Aggregated GHS information provided per 158 reports by companies from 16 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.；Reported as not meeting GHS hazard criteria per 5 of 158 reports by companies.；There are 15 notifications provided by 153 of 158 reports by companies with hazard statement code(s).；Information may vary between notifications depending on impurities, additives, and other factors. The percentage value in parenthesis indicates the notified classification ratio from companies that provide hazard codes. Only hazard codes with percentage values above 10% are shown. For more detailed information, please visit ECHA C&L website.

Chemical: 7-Oxabicyclo[4.1.0]heptane

Status: Active Update: 20-06-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/5629

Epoxycyclohexane: Does not have an individual approval but may be used under an appropriate group standard

FLAMMABLE, DANGEROUS FIRE RISK.

A tumorigen and mutagen; [RTECS] An irritant; [MSDSonline]

Cyclohexene Oxide

D*: Other compounds that may form peroxides

1 samples had 1 ppm peroxide; age >1 yrs

Management of time-sensitive chemicals (JCHAS)

Flam. Liq. 3 (95.6%)；Acute Tox. 4 (96.2%)；Acute Tox. 3 (84.8%)；Acute Tox. 4 (20.9%)；Skin Corr. 1B (77.8%)；Eye Dam. 1 (58.9%)；Acute Tox. 3 (72.2%)；Muta. 2 (52.5%)

Flammable liquids - Category 3；Acute toxicity (Oral) - Category 4；Acute toxicity (Dermal) - Category 3

MODIFIER OF MICROSOMAL EPOXIDE HYDRASE ACTIVITY, CYCLOHEXENE OXIDE, EXERTS DIFFERENTIAL EFFECTS ON CATALYTIC ACTIVITY OF PURIFIED ENZYME FROM RAT LIVER. CYCLOHEXENE OXIDE INHIBITS RATE OF METAB OF BENZO(A)PYRENE 11,12-OXIDE & DIBENZO(A,H)-ANTHRACENE 5,6-OXIDE.

CYCLOHEXENE OXIDE ADMIN IP TO RATS, INHIBITED BILIARY EXCRETION OF METHYL MERCURY. THESE RESULTS PROBABLY REFLECT THE CONJUGATION OF CYCLOHEXENE TO GLUTATHIONE IN THE LIVER.

CO-ADMIN OF CYCLOHEXANE OXIDE AND CHLOROBENZENE REDUCED THE RATE OF METABOLISM OF CHLOROBENZENE AND PREVENTED HEPATIC CENTRILOBULAR NECROSIS CAUSED BY THIS COMPD IN RATS.

INDUCED LUNG HYDROXYLASES HAD KM VALUES OF 1.10 AND 0.52 IN MOUSE AND HAMSTER, RESPECTIVELY. THEY WERE STRONGLY STIMULATED BY CYCLOHEXENE OXIDE.

The following link will take the user to the National Toxicology Program (NTP) Test Agent Search Results page, which tabulates all of the "Standard Toxicology & Carcinogenesis Studies", "Developmental Studies", and "Genetic Toxicity Studies" performed with this chemical. Clicking on the "Testing Status" link will take the user to the status (i.e., in review, in progress, in preparation, on test, completed, etc.) and results of all the studies that the NTP has done on this chemical. [http://ntp-apps.niehs.nih.gov/ntp_tox/index.cfm?fuseaction=ntpsearch.searchresults&searchterm=286-20-4]

CYCLOHEXENE OXIDE IS A CILIA TOXIC AND MUCUS COAGULATING AGENT IDENTIFIED IN AIR POLLUTANTS. /FROM TABLE/

MUTAGENICITY: MUTATION RESEARCH 87: 17 (1981). SISTER CHROMATID EXCHANGE - IN VITRO CHROMOSOMAL EFFECT STUDIES, NON-HUMAN: QUESTIONABLE.

CYCLOHEXANE OXIDE WAS INVESTIGATED USING AMES SALMONELLA TYPHIMURIUM ASSAY WITHOUT ADDN OF LIVER HOMOGENATE FRACTIONS. IT IS FOUND TO BE A WEAK MUTAGEN FOR TA100 & TA1535 STRAINS.

12 EPOXIDE COMPD WERE TESTED FOR CARCINOGENIC ACTIVITY IN RATS AFTER SC INJECTION @ MAX TOLERATED DOSES WITHOUT TOXIC OR ULCERATIVE EFFECTS. 1,2-EPOXYCYCLOHEXANE WAS INACTIVE.

CYCLOHEXENE OXIDE EXERTED DIFFERENTIAL EFFECTS ON NUCLEAR AND MICROSOMAL EPOXIDE HYDRASE WHICH WERE DEPENDENT ON SUBSTRATE AND ON THE ORGANELLE.

LCLo (rat) = 2,000 ppm/4h

Chemical: 7-Oxabicyclo[4.1.0]heptane

Status: Active Update: 20-06-2022 https://echa.europa.eu/registration-dossier/-/registered-dossier/5629

Epoxycyclohexane: Does not have an individual approval but may be used under an appropriate group standard

RABBIT LIVER MICROSOMES OXIDIZED CYCLOHEXENE OXIDE. THEREFORE, EPOXIDES ARE INTERMEDIATES IN THE OXIDATION OF ALKENES TO GLYCOLS IN LIVER MICROSOMES.

ON INCUBATION WITH RABBIT LIVER MICROSOMES CYCLOHEXENE OXIDE WAS CONVERTED TO THE CORRESPONDING 1,2-GLYCOL BY EPOXIDE HYDRASE.

Used as a chemical intermediate for epoxy resins and photoreactive polymers; [HSDB]

CHEMICAL INTERMEDIATE

CHEM INT, EG, FOR EPOXY RESINS & PHOTOREACTIVE POLYMERS

(1979) No Data

(1981) No Data

(1979) 6.26X10+7 GRAMS (PRINCPL CUSTMS DISTS)

(1981) No Data

(1979) PROBABLY GREATER THAN 4.54X10+6 GRAMS

(1981) PROBABLY GREATER THAN 2.27X10+6 GRAMS

PROBABLY BY REACTION OF CYCLOHEXENE WITH A PEROXY ACID, EG, PERACETIC ACID

GRADE: 98% PURE.

7-Oxabicyclo[4.1.0]heptane: ACTIVE