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About This Item
Linear Formula:
(CH3)3CC6H3(=O)2
CAS Number:
Molecular Weight:
164.20
EC Number:
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22
Recommended Products
Assay
98%
form
solid
mp
54-58 °C (lit.)
SMILES string
CC(C)(C)C1=CC(=O)C=CC1=O
InChI
1S/C10H12O2/c1-10(2,3)8-6-7(11)4-5-9(8)12/h4-6H,1-3H3
InChI key
NCCTVAJNFXYWTM-UHFFFAOYSA-N
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).
Application
2-tert-Butyl-1,4-benzoquinone may be used in the synthesis of azatrioxa[8]circulene.
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3
Target Organs
Respiratory system
Storage Class Code
11 - Combustible Solids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Certificates of Analysis (COA)
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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)
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)
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)
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
Azatrioxa [8] circulenes: Planar Anti-Aromatic Cyclooctatetraenes.
Nielsen CB, et al.
Chemistry (Weinheim An Der Bergstrasse, Germany), 19(12), 3898-3904 (2013)
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