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4270-39-7

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4270-39-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 4270-39-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,7 and 0 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4270-39:
(6*4)+(5*2)+(4*7)+(3*0)+(2*3)+(1*9)=77
77 % 10 = 7
So 4270-39-7 is a valid CAS Registry Number.

4270-39-7Relevant articles and documents

Ethyl Esters of Malonanilic Acids. Synthesis and Pyrolysis

Ukrainets, Igor V.,Bezugly, Peter A.,Treskach, Vladimir I.,Taran, Svetlana G.,Gorokhova, Olga V.

, p. 10331 - 10338 (2007/10/02)

The pyrolysis under 170-220 deg C or boiling in DMF of malonanilic acids ethyl esters (2) is accompanied by formation of malonic acids symmetric dianilides (7) with high yields.A possible mechanism for this transformation has been suggested.

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