Cas 524741-57-9,Bicyclo[2.2.1]hept-2-ene, 2-bromo-5,6-bis(methylene)- (9CI)

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Check Digit Verification of cas no

The CAS Registry Mumber 524741-57-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,2,4,7,4 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 524741-57:
(8*5)+(7*2)+(6*4)+(5*7)+(4*4)+(3*1)+(2*5)+(1*7)=149
149 % 10 = 9
So 524741-57-9 is a valid CAS Registry Number.

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524741-57-9Relevant academic research and scientific papers

Synthesis of the syn and anti isomer of 1,4,5,8,9,12-hexahydro-2,3,6,7,10,11-hexamethylidene-1,4:5,8:9,12- trimethanotriphenylene and Diels-Alder reactivity of the syn isomer

Borsato, Giuseppe,De Lucchi, Ottorino,Fabris, Fabrizio,Lucchini, Vittorio,Pasqualotti, Marco,Zambon, Alfonso

, p. 561 - 563 (2003)

The title compounds, new members in the class of tris-annelated benzenes with [2.2.1] bicyclic rings, were obtained in high yields by coupling of 2-bromo-3-trimethyltin-5,6-dimethylenenorborn-2-ene with copper(I) 2-thiophenecarboxylate (CuTC). The syn iso

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