429074
2-tert-Butyl-1,4-benzoquinone
98%
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About This Item
Linear Formula:
(CH3)3CC6H3(=O)2
CAS Number:
Molecular Weight:
164.20
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
222-757-8
MDL number:
Product Name
2-tert-Butyl-1,4-benzoquinone, 98%
InChI key
NCCTVAJNFXYWTM-UHFFFAOYSA-N
InChI
1S/C10H12O2/c1-10(2,3)8-6-7(11)4-5-9(8)12/h4-6H,1-3H3
SMILES string
CC(C)(C)C1=CC(=O)C=CC1=O
assay
98%
form
solid
mp
54-58 °C (lit.)
functional group
ketone
Quality Level
Related Categories
Application
2-tert-Butyl-1,4-benzoquinone may be used in the synthesis of azatrioxa[8]circulene.
General description
2-tert-Butyl-1,4-benzoquinone (TBQ, TBBQ, tBQ, BuBQ, BQ , tert-butyl-p-quinone) is a 1,4-benzoquinone derivative. It is a major metabolite of the food additive, butylated hydroxyanisole (BHA). TBQ is reported to be strongly cytotoxic in human monocytic leukemia U937 cells. TBQ is an oxidation product of 2-tert-butylhydroquinone (TBHQ). Studies confirm that TBQ induces apoptosis and cell proliferation inhibition in chronic myelogenous leukemia (CML) cells. Its binding interactions with lysozyme has been examined and found to be intermediate between BHA and TBHQ. It has been reported to be synthesized by the titanium superoxide catalyzed oxidation of 2-tert-butylphenol using aq. 30% H2O2. TBQ is one of the main neoformed compounds from TBHQ decomposition in PLA-TBHQ film (Poly lactic acid).
signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Respiratory system
Storage Class
11 - Combustible Solids
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
dust mask type N95 (US), Eyeshields, Gloves
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S W Cummings et al.
Xenobiotica; the fate of foreign compounds in biological systems, 20(9), 915-924 (1990-09-01)
1. The t-butylquinone metabolite of BHA was shown to redox cycle with NADPH-cytochrome P-450 reductase leading to enhanced NADPH-oxidase activity for both the purified and liver microsome-bound flavoprotein. Likewise, addition of t-butylquinone (20-100 microM) strikingly inhibited electron transfer from the
W H Kalus et al.
Food additives and contaminants, 7(2), 223-233 (1990-03-01)
The reaction mixture and several products arising from the reaction of butylated hydroxyanisole (BHA) and nitrite in anaerobic aqueous acidic solution were separated and tested in the Salmonella mutagenicity test. Among the nine products separable by thin-layer chromatography, 1-hydroxyl-2-tert-butyl-4-methoxy-6-nitrobenzene (BHA-NO2)
Binding properties and structure-affinity relationships of food antioxidant butylated hydroxyanisole and its metabolites with lysozyme.
Wu D, et al.
Food Chemistry, 188, 370-376 (2015)
Titanium superoxide catalyzed selective oxidation of phenols to p-quinones with aq. H2O2.
Dewkar GK, et al.
Indian J. Chem. B, 44(7), 1530-1530 (2005)
R Kahl et al.
Toxicology, 59(2), 179-194 (1989-12-01)
The synthetic antioxidant butylated hydroxyanisole (BHA) stimulates superoxide formation in rat liver microsomes up to 10-fold. This stimulation is prevented by the monooxygenase inhibitor metyrapone and does not occur when NADH is consumed instead of NADPH indicating that metabolic activation
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