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Topic: Benzophenone

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Oxybenzone

IUPAC name

Acetophenone

IUPAC nomenclature

Amine

Systematic name

List of compounds

Amino acid

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	Benzophenone - Wikipedia, the free encyclopedia
		Benzophenone, also known as diphenylmethanone, phenyl ketone, diphenyl ketone, or benzoylbenzene.
		Substituted benzophenones like oxybenzone and dioxybenzone are used in sunscreen.
		This page was last modified 12:48, 1 September 2005.
	en.wikipedia.org /wiki/Benzophenone (47 words)

	BENZOPHENONE (DIPHENYL KETONE)
		Benzophenone, an aromatic ketones (diphenyl ketone), is an important compound in organic photochemistry and perfumery as well as in organic synthesis.
		Benzophenone is used as a photoinitiator of UV-curing applications in inks, adhesive and coatings, optical fiber as well as in printed circuit boards.
		Benzophenones can act as optical filters or deactivate substrate molecules that have been excited by light for the protection polymers and organic substances.
	www.chemicalland21.com /specialtychem/finechem/BENZOPHENONE.htm (590 words)

	Benzophenone (PV2130) (Site not responding. Last check: 2007-10-22)
		While the extraction efficiency for dry tubes was 97.6%, the spiked tubes that had humid air pulled them had a loss of benzophenone in the extracted solution after the samples sat on the autosampler for more than two hours after shaking.
		Benzophenone is a naturally occurring compound used in flavorings and perfumes.
		Benzophenone is used as a fixative for heavy perfumes in soaps, detergents, and room deodorizers.
	www.osha.gov /dts/sltc/methods/partial/pv2130/pv2130.html (2128 words)

	Benzophenone ether esters and use thereof to improve the light fastness of polyester dyeings - Patent 4789382
		The benzophenone derivative of claim 5, wherein said C.sub.1 -C.sub.4 alkyl group for R is selected from the group consisting of methyl, ethyl, propyl, n-butyl and tert-butyl.
		The present invention relates to novel benzophenone ether esters, to a process for dyeing textile polyester material with disperse dyes using benzophenone ether esters to improve the light fastness, and to the use of these benzophenone derivatives in the dyeing of textile polyester material.
		A mixture of 10.3 g of 2-hydroxy-4-(.beta.-hydroxyethoxy), benzophenone, 50 ml of toluene, 9.1 g of 3,4-dimethoxy-benzoic acid and 1 g of p-toluenesulfonic acid is heated at the boil under a water separator for 13 hours.
	www.freepatentsonline.com /4789382.html (3913 words)

	Benzophenonone Ketyl Study (Site not responding. Last check: 2007-10-22)
		This indicated that the source of the benzene was from the chemical breakdown of the benzophenone in the still.
		The benzophenone ketyl was produced in THF at a concentration of 630 ppm.
		This data shows that the benzophenone ketyl reacts catalytically with oxygen and not on a one to one mole ratio as water does.
	www.jtbaker.com /techlib/documents/8882.html (992 words)

	Photopolymerizable composition and process with liquid mixture of photoinitiators and ethylenically unsaturated ...
		There are obtained by mixing together approximately equal parts of 1-benzoylcyclohexanol and benzophenone or a benzophenone derivative liquid mixtures which possess a high activity as photoinitiators for the polymerization of ethylenically unsaturated compounds.
		It is known that benzophenone and benzophenone derivatives are photoinitiators.
		It was therefore to be expected that for example a mixture of 1-benzoylcyclohexanol and benzophenone would exhibit an initiator activity higher than that of a mixture of 2-benzoylcyclohexanol with some compound that was not a photoinitiator.
	www.freepatentsonline.com /4609612.html (2312 words)

	'Triplet-Triplet Absorption Spectra
		Hayashi, H. Direct observation of the 1,4-biradical of benzophenone with cis-3-methyl-2-pentene excited by the fourth harmonic of a Nd:YAG laser.
		Buettner, A.V.; Dedinas, J. Photoreduction of benzophenone in benzene.
		Hurley, J.K.; Sinai, N.; Linschitz, H. Actinometry in monochromatic flash photolysis: The extinction coefficient of triplet benzophenone and quantum yield of triplet zinc tetraphenyl porphyrin.
	allen.rad.nd.edu /compilations/Tta/Tta0133.htm (1314 words)

	Ingredients -- Benzophenone
		Benzophenone is used to prevent ultraviolet light from damaging scents and colors in products such as perfumes and soaps.
		There are many variants of benzophenone in use.
		You may see numbers after the name, as a shorthand indication of which variant is in use.
	sci-toys.com /ingredients/benzophenone.html (242 words)

	A & E CONNOCK (PERFUMERY & COSMETICS) LTD
		Fortunately a small number of suitable materials are permitted where their purpose is to protect the product and these are the benzophenones; specifically benzophenone-2, benzophenone-6 and benzophenone-9.
		Benzophenone, or more correctly tetrahydroxybenzophenone, or more correctly still bis(n,ndihydroxyphenyl) methanone, consists of two benzene rings joined by a carbonyl group and carrying four hydroxyl groups.
		Benzophenone-6 is dihydroxy-dimethoxy benzophenone or more correctly, bis(2-hydroxy-4-methoxy phenyl) methanone and the two hydroxyl groups of benzophenone-2 are replaced by two methoxy groups in the 4 position.
	www.connock.co.uk /articles_uv.htm (1247 words)

	Velsicure® Benzophenone: Uses & Products: Velsicol.com (Site not responding. Last check: 2007-10-22)
		As a chemical intermediate, Velsicure® Benzophenone is used in the manufacture of pesticides.
		Photoinitiators can be described as chemicals that respond to UV light by generating a free radical capable of rapid polymerization.
		Benzophenone is a non-cleaving photoinitiator that requires a hydrogen donor.
	www.velsicol.com /benzophenone.htm (227 words)

	Immobilizing the Moving Parts of Voltage-gated Ion Channels -- Horn et al. 116 (3): 461 -- The Journal of General ...
		Benzophenone was photoactivated by UV light presented to a voltage-clamped
		The inactivation time constants were well fit by single exponentials in both cases, and by a mixture of these two exponentials only during the modification by BPMTS (data not shown), strongly suggesting that all cysteines were labeled with benzophenone at the time of UV irradiation.
		Deschênes, I., Trottier, E., and Chahine, M. Cysteine scanning analysis of the IFM cluster in the inactivation gate of a human heart sodium channel.
	www.jgp.org /cgi/content/full/116/3/461 (7970 words)

	benzophenone-6 (Site not responding. Last check: 2007-10-22)
		We are a set of experienced professionals capable of helping you in your order negotiation, collection, assessment of market demand and all other business activities in Tamil Nadu, India.
		are the benzophenones; specifically benzophenone-2, benzophenone-6 and benzophenone-9.
		Benzoin Tincture, Plain Benzonitrile, Reagent Benzophenone, Reagent Benzophenone-4 Benzophenone-6 Benzopurpurin 4B Benzothiazole Benzotriazol...
	www.chemindustry.net /chemnames/B/benzophenone-6.html (258 words)

	Energy Citations Database (ECD) - Energy and Energy-Related Bibliographic Citations (Site not responding. Last check: 2007-10-22)
		It is concluded that benzophenone probably functions principally as a hydrogen atom scavenger.
		It was also observed that radiolysis of these mixtures produced benzpinacol with a G of 6.60 (as semi-pinscol units) concurrent with a disappearance of benzophenone with a G of 7.2 and the formation of acetone with a G of 9.1.
		It is concluded that hydrogen transfer beteen the components of a system composed of a ketone molecule solvated with carbinol molecules is sn important factor in the formation of the pinacol.
	www.osti.gov /energycitations/product.biblio.jsp?osti_id=4246384 (212 words)

	Environmental Health Perspectives: Estrogenic Activity of Phenolic Additives Deter... @ HighBeam Research (Site not responding. Last check: 2007-10-22)
		(16) in a recent study of the estrogenicity of 18 benzophenone derivatives using a recombinant yeast assay.
		Other benzophenones either produced no response or were classified as slightly estrogenic due to submaximal response curves, but HPLC with UV detection suggests that trace contamination with benzophenone-1 may be responsible for the slight activity observed in some of these compounds.
		Estrogenicity of benzophenones evaluated with a recombinant yeast assay: comparison of experimental and rules-based predicted activity.
	highbeam.com /library/doc0.asp?DOCID=1G1:77276631&... (3057 words)

	PHOTODIMERIZATION OF BENZOPHENONE (Site not responding. Last check: 2007-10-22)
		In this experiment, the benzophenone 1 absorbs a photon to give the triplet excited state, which can be drawn as the diradical 2.
		Dimerization of benzophenone: Dissolve 0.40 g of benzophenone in 2.8 mL of isopropyl alcohol in a small test tube.
		Gentle warming may be required to get the benzophenone to dissolve.
	valhalla.chem.udel.edu /UV.html (363 words)

	Fine Chem Trading (ChemFinder - UK) - Supplier MS909
		Bis(2, 4- dihydroxyphenyl) methanone and bis(2- hydroxy- 4- methoxyphenyl)methanone ~Benzophenone 11 ~1341-54-4
		Mixture of 50% Benzophenone and 50% 4-Methylbenzophenone ~Photoinitiator 81 ~119-61-9
		Mixture of 50% Photoinitiator 184 and 50% Benzophenone ~Photoinitiator 500 ~947-19-3
	www.chemfinder.co.uk /supplier_ms909.html (164 words)

	External skin treatment composition (US6024941)
		(5) at least one water-soluble benzophenone compound, wherein the composition comprises 0.0001% by weight or more of vitamin A, and
		(C) 0.001% by weight or more of (1) (iii) the benzophenone compound, on the basis of the total weight of the composition.
		Show 4 U.S. patent(s) that reference this one
	www.delphion.com /details?pn=US06024941__ (559 words)

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