Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2,5-Dimethylquinone
Price: Check
Purity: 98.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 2,5-Dimethylquinone
Price: ￥1618.0/5g ￥6428.0/25g
Purity: 98.0%
Stocking Period: 3 Day
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,5-Dimethyl-p-benzoquinone
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

137-18-8

137-18-8 structure

137-18-8 structure

Name: 2,5-Dimethylquinone
Chemical Name: p-xyloquinone
CAS Number: 137-18-8
Molecular Formula: C₈H₈O₂
Molecular Weight: 136.148
Catalog: Chemical reagent Organic reagent Fatty ketone (including enol)
Create Date: 2018-03-13 08:00:00
Modify Date: 2025-08-22 11:24:52

Name	p-xyloquinone
Synonyms	2,5-dimethyl-p-benzoquinone 2,5-Dimethyl-1,4-benzoquinone MFCD00041737 EINECS 205-283-6 p-Xyloquinone 2,5-Dimethylbenzoquinone 2,5-Dimethyl-p-quinone 2,5-Cyclohexadiene-1,4-dione, 2,5-dimethyl- 2,5-dimethylcyclohexa-2,5-diene-1,4-dione 2,5-Dimethylquinone

Density	1.1±0.1 g/cm3
Boiling Point	200.9±15.0 °C at 760 mmHg
Melting Point	123-125ºC
Molecular Formula	C₈H₈O₂
Molecular Weight	136.148
Flash Point	71.1±17.4 °C
Exact Mass	136.052429
PSA	34.14000
LogP	1.45
Appearance	Crystalline Powder \| Yellow to brown
Vapour Pressure	0.3±0.4 mmHg at 25°C
Index of Refraction	1.511
Water Solubility	toluene: soluble0.5g/10 mL, clear to faintly turbid, yellow to brown

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DK4800000

CHEMICAL NAME :: p-Benzoquinone, 2,5-dimethyl-

CAS REGISTRY NUMBER :: 137-18-8

LAST UPDATED :: 199701

DATA ITEMS CITED :: 6

MOLECULAR FORMULA :: C8-H8-O2

MOLECULAR WEIGHT :: 136.16

WISWESSER LINE NOTATION :: L6V DVJ B1 E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 mg/kg

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

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 290 mg/kg

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

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

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 11 mg/kg

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

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

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 43 mg/kg

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

MUTATION DATA

TYPE OF TEST :: Mutation in microorganisms

TEST SYSTEM :: Bacteria - Salmonella typhimurium

DOSE/DURATION :: 40 nmol/plate

REFERENCE :: MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 347,37,1995

Symbol	GHS06
Signal Word	Danger
Hazard Statements	H301-H315-H319-H335
Precautionary Statements	P261-P301 + P310-P305 + P351 + P338
Personal Protective Equipment	dust mask type N95 (US);Eyeshields;Faceshields;Gloves
Hazard Codes	Xn: Harmful;
Risk Phrases	R22
Safety Phrases	26-37/39
RIDADR	UN 2811 6.1/PG 3
WGK Germany	3
RTECS	DK4800000
HS Code	2914690090

Precursor 10
95-87-4 615-90-7 106-42-3 869163-37-1
78018-52-7 78018-55-0 2674-32-0 3096-71-7
67-68-5 106-51-4
DownStream 9
496-78-6 19206-86-1 2913-41-9 615-90-7
28293-24-5 28293-25-6 2593-53-5 2674-32-0
26278-83-1

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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