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5-[4-(4-Methoxy-phenylazo)-phenoxy]-pentan-1-ol is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

128971-20-0

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128971-20-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 128971-20-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,8,9,7 and 1 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 128971-20:
(8*1)+(7*2)+(6*8)+(5*9)+(4*7)+(3*1)+(2*2)+(1*0)=150
150 % 10 = 0
So 128971-20-0 is a valid CAS Registry Number.

128971-20-0Relevant academic research and scientific papers

SYNTHESIS AND PROPERTIES OF SIDE-CHAIN LIQUID CRYSTALLINE POLYMERS CONTAINING AZOBENZENE MESOGENS

Angeloni, Annino Sante,Campagnari, Ilaria,Caretti, Daniele,Carlini, Carlo,Altomare, Angelina,et al.

, p. 171 - 178 (2007/10/02)

The synthesis and phase behaviour of side-chain liquid crystalline polymers containing the trans-azobenzene mesogenic unit are described.Depending on the structure of the repeating unit, the polymers give rise to nematic mesophases and/or different smectic modifications.The liquid crystalline properties of the polymers are discussed with respect to the influence of the polymer backbone nature, chemical constitution and length of the spacer segment, and type and length of the para substituent on the azobenzene moiety.Indications on the UV absorption and photoisomerization behaviour of trans-azobenzene containing polymers are also provided.

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