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2',2''-dihydroxy-3',3''-bis-(2'''-hydroxy-5'''-tert-butylbenzyl)-5',5''-di-tert-butyl-4-nitrotriphenylmethane is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

197652-89-4

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197652-89-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 197652-89-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,7,6,5 and 2 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 197652-89:
(8*1)+(7*9)+(6*7)+(5*6)+(4*5)+(3*2)+(2*8)+(1*9)=194
194 % 10 = 4
So 197652-89-4 is a valid CAS Registry Number.

197652-89-4Downstream Products

197652-89-4Relevant academic research and scientific papers

Stepwise synthesis and structural characterization of calix[4]- and calix[5]arenes bearing a functionalized arm on the methylene bridge

Bergamaschi, Monica,Bigi, Franca,Lanfranchi, Maurizio,Maggi, Raimondo,Pastorio, Andrea,Pellinghelli, Maria Angela,Peri, Francesco,Porta, Cecilia,Sartori, Giovanni

, p. 13037 - 13052 (2007/10/03)

Calix[4]arenes 4 and calix[5]arenes 6 functionalized at the methylene bridge are synthesized starting from benzaldehydes 1, diphenylmethanes 2 and formaldehyde or 2,6-dihydroxymethylphenols 5 respectively, 1H NMR analyses of macrocycles 4 and 6 as well as crystal structure of the calix[5]arene 6by are reported.

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