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dimethyl 2-(pyrazolo<1,2-a>benzotriazol-3-yl)maleate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

90481-23-5

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90481-23-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 90481-23-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,0,4,8 and 1 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 90481-23:
(7*9)+(6*0)+(5*4)+(4*8)+(3*1)+(2*2)+(1*3)=125
125 % 10 = 5
So 90481-23-5 is a valid CAS Registry Number.

90481-23-5Relevant 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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