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Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,5-Cyclohexadiene-1,4-dione,2,3,5-trimethyl-
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935-92-2

935-92-2 structure

935-92-2 structure

Name: trimethyl-p-benzoquinone
Chemical Name: 2,3,5-trimethylcyclohexa-2,5-diene-1,4-dione
CAS Number: 935-92-2
Molecular Formula: C₉H₁₀O₂
Molecular Weight: 150.174
Create Date: 2018-08-27 16:25:52
Modify Date: 2026-07-01 08:31:36

Name	2,3,5-trimethylcyclohexa-2,5-diene-1,4-dione
Synonyms	2,3,5-Trimethyl-p-benzoquinone Cilnidipine Impurity 14 Pseudocumoquinone Trimethyl-1,4-benzoquinone 2,3,6-Trimethyl-p-benzoquinone 2,3,5-Trimethylquinone 2,5-Dimethyl-3-methyl-1,4-benzoquinone psi-Cumoquinone 2,3,5-trimethylbenzo-1,4-quinone 2,3,5-Tri-methylquinone Tocopherol Impurity 12 Trimethylbenzoquinone 4-dione,2,3,5-trimethyl-5-cyclohexadiene-1 2,3,5-Trimethyl-1,4-benzoquinone 2,3,6-trimethyl-p-benzoquinone 2,3,5-trimethyl-p-benzoquinone p-Pseudocumoquinone 2,3,5-trimethyl-2,5-cyclohexadien-1,4-dione 2,3,6-trimethyl-1,4-benzoquinone trimethyl-benzoquinon Trimethyl-p-benzoquinone 2,3,5-trimethyl-p-benzoquinon 2,3,5-Trimethyl-2,5-cyclohexadiene-1,4-dione 2,3,5-Trimethylbenzoquinone TRIMETHYLQUINONE 5-Cyclohexadiene-1,4-dione,2,3,5-trimethyl-2 2,3,6-Trimethylbenzoquinone Trimethyl-p-quinone Trimethylquinone p-Benzoquinone, 2,3,5-trimethyl 4-dione,2,3,5-trimethyl-5-cyclohexadien-1 2,5-Cyclohexadiene-1,4-dione,2,3,5-triMethyl trimethylchinon Cumoquinone

Density	1.1±0.1 g/cm3
Boiling Point	215.3±15.0 °C at 760 mmHg
Melting Point	26 °C
Molecular Formula	C₉H₁₀O₂
Molecular Weight	150.174
Flash Point	77.3±17.4 °C
Exact Mass	150.068085
PSA	34.14000
LogP	2.04
Vapour Pressure	0.1±0.4 mmHg at 25°C
Index of Refraction	1.501
Storage condition	0-10°C

CHEMICAL IDENTIFICATION

RTECS NUMBER :: GU4709600

CHEMICAL NAME :: 2,5-Cyclohexadien-1,4-dione, 2,3,5-trimethyl-

CAS REGISTRY NUMBER :: 935-92-2

LAST UPDATED :: 199710

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: C9-H10-O2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0545315

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-0291-1191

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 25 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0545315

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - tremor Skin and Appendages - hair

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0545315

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 18 mg/kg

TOXIC EFFECTS :: Behavioral - convulsions or effect on seizure threshold Lungs, Thorax, or Respiration - dyspnea Gastrointestinal - other changes

REFERENCE :: NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: OTS0529741-1

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rabbit

DOSE/DURATION :: >200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: EPASR* United States Environmental Protection Agency, Office of Pesticides and Toxic Substances. (U.S. Environmental Protection Agency, 401 M St., SW, Washington, DC 20460) History unknown. Volume(issue)/page/year: 8EHQ-0291-1191

HS Code	2914690090

Precursor 10
36433-51-9 700-13-0 2416-94-6 7440-48-4
51857-41-1 697-82-5 53651-61-9 4537-09-1
95-63-6 526-86-3
DownStream 9
2134-78-3 18477-17-3 700-13-0 2913-43-1
527-17-3 17959-06-7 13367-81-2 74894-48-7
7210-68-6

HS Code	2914690090
Summary	2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

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