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C19H20N4O2 is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

903457-85-2

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903457-85-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 903457-85-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,3,4,5 and 7 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 903457-85:
(8*9)+(7*0)+(6*3)+(5*4)+(4*5)+(3*7)+(2*8)+(1*5)=172
172 % 10 = 2
So 903457-85-2 is a valid CAS Registry Number.

903457-85-2Upstream product

903457-85-2Downstream Products

903457-85-2Relevant academic research and scientific papers

Pyrazole-3(5)-diazonium salts in the synthesis of novel pyrazolo[5, 1-c][1, 2, 4]triazines

Shikhaliev,Didenko,Voronkova,Kryl'Skii

, p. 1034 - 1040 (2009)

Coupling of pyrazole-3(5)-diazonium salts with cyclic 1, 3-dicarbonyl (active methylene) compounds followed by cyclocondensation of the resulting hetarylhydrazones gave novel pyrazolo[5, 1-c][1, 2, 4]triazines.

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