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1240503-63-2

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1240503-63-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1240503-63-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,0,5,0 and 3 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1240503-63:
(9*1)+(8*2)+(7*4)+(6*0)+(5*5)+(4*0)+(3*3)+(2*6)+(1*3)=102
102 % 10 = 2
So 1240503-63-2 is a valid CAS Registry Number.

1240503-63-2Upstream product

1240503-63-2Downstream Products

1240503-63-2Relevant academic research and scientific papers

Polyfunctional pyrazoles 6.* Convenient method for the synthesis of 1-aryl-1H-pyrazole-3,4-dicarboxylic acids

Bratenko,Barus,Vovk

, p. 196 - 199 (2010)

A preparatively convenient method was developed for the synthesis of 1-aryl-1H-pyrazole-3,4-di-carboxylic acids based on the alkaline hydrolysis and oxidation of 1-aryl-4-formyl-1H-pyrazole-3-carboxylic esters with hydrogen peroxide in an aqueous medium.

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