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Hydroquinone, also known as benzene-1,4-diol or quinol, is an aromatic organic compound that is a type of phenol, a derivative of benzene, having the chemical formula C 6 H 4 (OH) 2. It has two hydroxyl groups bonded to a benzene ring in a para position. It is a white granular solid. Substituted derivatives of this parent compound are also ...
There are three structural isomers: 1,2-dihydroxybenzene (the ortho isomer) is commonly known as catechol, 1,3-dihydroxybenzene (the meta isomer) is commonly known as resorcinol, and 1,4-dihydroxybenzene (the para isomer) is commonly known as hydroquinone.
Amazon Cash (in the United States and Canada) and Amazon Top Up (in the United Kingdom) are services allowing Amazon shoppers to add money to their Amazon account at a physical retail store. [136] The service, launched in April 2017, allows users to add between $5 and $500 (£5 and £250) to their accounts by paying with cash at a participating ...
Oil additives are chemical compounds that improve the lubricant performance of base oil (or oil "base stock"). The manufacturer of many oils can use the same base stock for each formulation and can choose different additives for each use. Additives comprise up to 5% by weight of some oils. [1]
1728 18104 Ensembl ENSG00000181019 ENSMUSG00000003849 UniProt P15559 Q64669 RefSeq (mRNA) NM_001286137 NM_000903 NM_001025433 NM_001025434 NM_008706 RefSeq (protein) NP_000894 NP_001020604 NP_001020605 NP_001273066 NP_032732 Location (UCSC) Chr 16: 69.71 – 69.73 Mb Chr 8: 108.11 – 108.13 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse NAD(P)H dehydrogenase [quinone] 1 is an ...
Number 5 fuel oil is a residual-type industrial heating oil requiring preheating to 77–104 °C (171–219 °F) for proper atomization at the burners. [8] It may be obtained from the heavy gas oil cut, [ 7 ] or it may be a blend of residual oil with enough number 2 oil to adjust viscosity until it can be pumped without preheating. [ 8 ]
Lawsone (2-hydroxy-1,4-naphthoquinone), also known as hennotannic acid, is a red-orange dye present in the leaves of the henna plant (Lawsonia inermis), for which it is named, as well as in the common walnut (Juglans regia) [5] and water hyacinth (Pontederia crassipes). [6]
The People's Republic of China defines a VOC as those compounds that have "originated from automobiles, industrial production and civilian use, burning of all types of fuels, storage and transportation of oils, fitment finish, coating for furniture and machines, cooking oil fume and fine particles (PM 2.5)", and similar sources. [12]