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4,4’-[4,4’-diphenyl sulfone di-diazene-2,1-diyl]bis(phenol) is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

89304-92-7

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89304-92-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89304-92-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,3,0 and 4 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 89304-92:
(7*8)+(6*9)+(5*3)+(4*0)+(3*4)+(2*9)+(1*2)=157
157 % 10 = 7
So 89304-92-7 is a valid CAS Registry Number.

89304-92-7Downstream Products

89304-92-7Relevant academic research and scientific papers

Synthesis and characterization of photoactive poly(arylene ether sulfone)s containing azobenzene moieties in their main chains

Jiang, Xiangyu,Chen, Xingbo,Yue, Xigui,Zhang, Jingjing,Guan, Shaowei,Zhang, Haibo,Zhang, Wenyi,Chen, Qidai

, p. 616 - 621 (2010)

A series of azobenzene functionalized poly(arylene ether sulfone)s (azo-PAESs) has been synthesized via nucleophilic aromatic substitution polycondensation, and azobenzene chromophores could be introduced into the polymer main chains by copolymerization f

Poly (azo-ester)s: Interfacial synthesis of optically active polymers

Zahmatkesh, Saeed,Dindarlooiyan, Nasser

, p. 141 - 145 (2015/06/23)

(2S)-5-(3-Methyl-2-phthalimidylpentanoylamino)isophthalic acid (1), (2S)-5-(2-Phthalimidiylpropanoylamino) isophthalic acid, and (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid were prepared from phthalic anhydride, 5-aminoisophthalic acid

Ultrasound assisted diazotization and diazo coupling reactions using trichlorotriazine

Fekri, Leila Zare,Nikpassand, Mohammad

, p. 1629 - 1633 (2015/02/19)

A high rate and efficient procedure for the synthesis of azo dyes has been developed. This concluded the sequential diazotization-diazo condensation of aromatic amines such as 4,4'-sulfonyldianiline with NaNO2, or trichlorotriazine with couplin

Novel photoactive hyperbranched poly(aryl ether)s containing azobenzene chromophores for optical storage

Chen, Xingbo,Zhang, Yunhe,Liu, Baijun,Zhang, Jingjing,Wang, Hui,Zhang, Wenyi,Chen, Qidai,Pei, Songhao,Jiang, Zhenhua

experimental part, p. 5019 - 5026 (2010/03/03)

Two novel hyperbranched poly (aryl ether)s with azobenzene moieties in both the main chain and side chain of the branched arms were prepared by using B3 + A2 methodology via a nucleophilic aromatic substitution polycondensation. Stru

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