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14984-21-5

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14984-21-5 Usage

General Description

4,4'-Diphenoxybenzophenone is a chemical compound composed of two benzophenone molecules linked together by an ether bridge. It is primarily used as a ultraviolet (UV) light absorber in various products such as adhesives, coatings, and plastics to prevent degradation caused by UV exposure. This chemical is also used as a photoinitiator in the production of photopolymers and inks. Additionally, 4,4'-Diphenoxybenzophenone is used as a flavoring agent in the food industry and as a fragrance ingredient in perfumes and cosmetic products. It is important to handle this chemical with care, as it may cause irritation to the skin and eyes, and could potentially be harmful if ingested or inhaled in large quantities.

Check Digit Verification of cas no

The CAS Registry Mumber 14984-21-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,4,9,8 and 4 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 14984-21:
(7*1)+(6*4)+(5*9)+(4*8)+(3*4)+(2*2)+(1*1)=125
125 % 10 = 5
So 14984-21-5 is a valid CAS Registry Number.
InChI:InChI=1/C25H18O3/c26-25(19-11-15-23(16-12-19)27-21-7-3-1-4-8-21)20-13-17-24(18-14-20)28-22-9-5-2-6-10-22/h1-18H

14984-21-5 Well-known Company Product Price

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  • Alfa Aesar

  • (L13419)  4,4'-Diphenoxybenzophenone, 98%   

  • 14984-21-5

  • 1g

  • 242.0CNY

  • Detail
  • Alfa Aesar

  • (L13419)  4,4'-Diphenoxybenzophenone, 98%   

  • 14984-21-5

  • 5g

  • 749.0CNY

  • Detail
  • Alfa Aesar

  • (L13419)  4,4'-Diphenoxybenzophenone, 98%   

  • 14984-21-5

  • 25g

  • 2342.0CNY

  • Detail

14984-21-5SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,4-Diphenoxybenzophenone

1.2 Other means of identification

Product number -
Other names Bis(4-phenoxyphenyl)methanone

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:14984-21-5 SDS

14984-21-5Relevant articles and documents

Preparation and characterization of side-chain poly(aryl ether ketone) anion exchange membranes by superacid-catalyzed reaction

Li, Ziqin,Yu, Riming,Liu, Chang,Zheng, Jifu,Guo, Jing,Sherazi, Tauqir A.,Li, Shenghai,Zhang, Suobo

, (2021)

The poly(aryl ether ketone) with spatial cardo structure is prepared from 4,4′-bis(phenoxy)benzophenone and 1-(4-bromobutyl)indoline-2,3-dione through a facile polyhydroxyalkylation reaction catalyzed by superacid. The number average molecular weight of the resultant polymer is achieved as high as 105.6 kg mmol?1. Three anion exchange membranes were prepared by reacting the polymer with trimethylamine, N-methyl-piperidine, and N,N,N′,N′,N″-pentaethylguanidine, respectively. Among the prepared membranes, N-methyl-piperidine based anion exchange membrane exhibited the highest OH? conductivity of 99.8 mS cm?1 at corresponding IEC of 1.54 meq g?1. In addition, the prepared membranes also exhibit excellent mechanical properties, in which the tensile strength and elongation at break can reach up to 50 MPa and 35%, respectively. Moreover, the anion exchange membranes exhibited good alkaline stability. When they were treated with 1 M KOH at 60 °C for 600 h, their conductivity decreased by less than 5%.

Pd/Cu-cocatalyzed aerobic oxidative carbonylative homocoupling of arylboronic acids and CO: A highly selective approach to diaryl ketones

Ren, Long,Jiao, Ning

supporting information, p. 2411 - 2414 (2014/10/15)

A highly selective Pd/Cu-cocatalyzed aerobic oxidative carbonylative homocoupling of arylboronic acids has been developed. This method employs a simple catalytic system, readily available boronic acids as the substrates, molecular oxygen as the oxidant, and 1 atm of CO/O2, which makes this method practical for further applications.

Substituent-Dependent Electron-Transfer Induced Photooxygenation of 1,1-Diarylethylenes

Gollnick, Klaus,Schnatterer, Albert,Utschick, Gerald

, p. 6049 - 6056 (2007/10/02)

Rates and products of 9,10-dicyanoanthracene-sensitized photooxygenations of 1,1-diarylethylenes (1a-r) in acetonitrile were studied.If at least one of the aryl groups carries an electron-donating substituent at the para (or ortho) position (1a-l), 3,3,6,6-tetraaryl-1,2-dioxanes (2a-l) are generated in high yields (85-100percent).Benzophenones (3) are the only other observable products. 1,1-Diphenylethylene (1n) and its m-methoxy (1m), p-chloro (1o,p), and p-nitro (1q,r) derivatives, however, yield mainly benzophenones (3m-r) (>50percent) (the p-nitro compounds only in the presence of biphenyl). 1,2-Dioxanes (2m-p), cyclobutanes (4n-p), and α-tetralones (5m-o) are obtained as side products.Dioxanes, benzophenones, and α-tetralones are products of electron-transfer induced oxygenations involving triplet ground-state molecular oxygen, 3O2.Singlet molecular oxygen, O2(1Δg), contributes to the benzophenone formation from strongly electron-donor substituted diarylethylenes.An exception is the most powerful electron-donor substituted diarylethylene 1a, with which O2(1Δg) undergoes an electron-transfer reaction affording dioxane 2a.Dioxane formation proceeds via free-radical cations 1.+, which enter into a chain reaction with 1, 3O2, and another molecule of 1 to yield dioxane 2 and a new radical cation 1.+ that maintains the chain reaction.The efficiency of this chain process, however, is found to be several orders of magnitude smaller than expected.To explain this result, a 1,6-biradical .1-1-O2. is proposed to be generated in this chain reaction as the product-determining intermediate that predominantly fragments into 3O2 and two molecules of 1.Cyclization to dioxane 2 and transformation to benzophenone 3 occur at presumably less than 0.1percent from this biradical.The pathways leading to cyclobutanes (4) and α-tetralones (5) are also discussed.

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