Cas 90460-13-2,dimethyl 2-(pyrazolo<1,2-a>benzotriazol-1-yl)maleate

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Check Digit Verification of cas no

The CAS Registry Mumber 90460-13-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,6 and 0 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90460-13:
(7*9)+(6*0)+(5*4)+(4*6)+(3*0)+(2*1)+(1*3)=112
112 % 10 = 2
So 90460-13-2 is a valid CAS Registry Number.

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90460-13-2Relevant academic research and scientific papers

Heteropentalenes. The Thermal Addition of Pyrazolo- and Triazolobenzotriazoles to Dimethyl Acetylenedicarboxylate

Albini, Angelo,Bettinetti, Gianfranco,Minoli, Giovanna

, p. 2670 - 2676 (2007/10/02)

Pyrazolobenzotriazole (1a), 1,2,3-triazolobenzotriazole (1b), and 1,2,3-triazolobenzotriazole (1c) undergo electrophilic attack by dimethyl acetylenedicarboxylate to reversibly form diradical or zwitterionic intermediates, which then

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