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Name	2,6-Di-tert-butyl-p-benzoquinone	EINECS	211-946-0
CAS No.	719-22-2	Density	1.027 g/cm³
PSA	34.14000	LogP	3.08320
Solubility	N/A	Melting Point	65-67 ºC
Formula	C14H20 O2	Boiling Point	285.4 °C at 760 mmHg
Molecular Weight	220.312	Flash Point	106.2 °C
Transport Information	N/A	Appearance	orange powder
Safety	Moderately toxic by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating vapors.	Risk Codes	R36/37/38
Molecular Structure		Hazard Symbols
Synonyms	p-Benzoquinone,2,6-di-tert-butyl- (6CI,8CI);2,6-Bis(1,1-dimethylethyl)-2,5-cyclohexadiene-1,4-dione; 2,6-Bis[1,1-dimethylethyl]quinone; 2,6-Di-tert-butyl-1,4-benzoquinone;2,6-Di-tert-butyl-2,5-cyclohexadien-1,4-dione;2,6-Di-tert-butyl-2,5-cyclohexadiene-1,4-dione;2,6-Di-tert-butyl-p-benzoquinone; 2,6-Di-tert-butyl-p-quinone;2,6-Di-tert-butylbenzoquinone; 2,6-Di-tert-butylquinone;3,5-Di-tert-butyl-p-benzoquinone; 3,5-Di-tert-butylquinone; NSC 14448	Article Data	294

2,6-Di-tert-butyl-p-benzoquinone Chemical Properties

Molecular Formula: C₁₄H₂₀O₂
Formula Weight: 220.31
IUPAC Name: 2,6-ditert-butylcyclohexa-2,5-diene-1,4-dione
Synonyms: 2,6-di-tert-Butyl-para-benzoquinone ; 2,6-di-tert-butyl-p-benzoquino ; 2,5-cyclohexadiene-1,4-dione,2,6- ; 2,6-bis(1,1-dimethylethyl)-2,5-cyclohexadiene-1,4-dione
Melting Point: 65-67^°C(lit.)
Flash Point of 2,6-Di-tert-butyl-p-benzoquinone (719-22-2): >110^°C(230^°F)
Boiling Point: 75-80^°C (0.7 mmHg)
Density of 2,6-Di-tert-butyl-p-benzoquinone (719-22-2): 1.027 g/cm³
Vapour Pressure: 0.00281 mmHg at 25^°C
Index of Refraction: 1.504
Chemical Properties: 2,6-Di-tert-butyl-p-benzoquinone (719-22-2) is an orange to brown crystal or crystalline powder

2,6-Di-tert-butyl-p-benzoquinone Uses

2,6-Di-tert-butyl-p-benzoquinone (719-22-2) is used as an organic synthesis intermediate and pharmaceutical intermediate.

2,6-Di-tert-butyl-p-benzoquinone Production

First 2,3-dichloro-5,6-dicyano-1,4-benzoquinone (DDQ) and 2,6-di-tert-butyl-4-methoxyphenol dissolved in methanol, then purging with nitrogen gas, stirring and reacting for 12 hours. Though vacuum concentration, using boiling benzene to process the residues. Then smoothing insoluble hydroquinone transformed from DDQ, after concentrating the filtrate, we can obtain yellow solids. At last, washing the yellow solids with methanol-water solution and filtering to gain 2,6-Di-tert-butyl-p-benzoquinone (719-22-2).

2,6-Di-tert-butyl-p-benzoquinone Toxicity Data With Reference

ipr-mus LD50:2270 mg/kg

TOLED5 Toxicology Letters. 6 (1980),173.

2,6-Di-tert-butyl-p-benzoquinone Consensus Reports

Reported in EPA TSCA Inventory.

2,6-Di-tert-butyl-p-benzoquinone Safety Profile

Moderately toxic by intraperitoneal route. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes : Xi: Irritant
Risk Statements : 36/37/38: Irritating to eyes, respiratory system and skin
Safety Statements : 26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
36/37/39: Wear suitable protective clothing, gloves and eye/face protection
22: Do not breathe dust
WGK Germany : 3
RTECS : DK3970000

2,6-Di-tert-butyl-p-benzoquinone Specification

2,6-Di-tert-butyl-p-benzoquinone (719-22-2) is an orange to brown crystal or crystalline powder and used as an intermediate. It is stable under normal temperatures and pressures. It may cause eye and skin irritation, and should store in a tightly closed container with a cool, dry, well-ventilated area away from incompatible substances.

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