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126930-22-1

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126930-22-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 126930-22-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,6,9,3 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 126930-22:
(8*1)+(7*2)+(6*6)+(5*9)+(4*3)+(3*0)+(2*2)+(1*2)=121
121 % 10 = 1
So 126930-22-1 is a valid CAS Registry Number.

126930-22-1Relevant articles and documents

Cyclization Reactions of Ethoxymethylenemalononitrile with 4-Substituted Acetoacetates

Schmidt, Hans-Werner

, p. 891 - 898 (1989)

Base-catalyzed cyclization of ethoxymethylenemalononitrile 2 with substituted acetoacetates 1 a-c leads to the ethyl benzoates 3 a-c.Depending on the reaction conditions either ethyl 4-aminobenzoates 3 d-i or ethyl 4-(2,2-dicyanethylene)aminobenzoates 4 d-h are available from 2 and the 4-oxyacetoacetates 1 d-i.The preparation of the acetoacetates 1 a-c and 1 g-i is also described. - Keywords: Ethoxymethylenemalononitrile; Cyclization; Ethyl benzoates

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