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217473-70-6

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217473-70-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 217473-70-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,7 and 3 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 217473-70:
(8*2)+(7*1)+(6*7)+(5*4)+(4*7)+(3*3)+(2*7)+(1*0)=136
136 % 10 = 6
So 217473-70-6 is a valid CAS Registry Number.

217473-70-6Relevant articles and documents

Hexamethylenetetramine-mediated transesterification of β-keto esters

Ribeiro, Rodrigo S.,De Souza, Rodrigo O. M. A.,Vasconcellos, Mario L. A. A.,Oliveira, Bianca L.,Ferreira, Leonardo C.,Aguiar, Lucia C. S.

, p. 61 - 64 (2007)

Treatment of methyl or ethyl β-keto esters with primary, secondary, or tertiary alcohols in the presence of a catalytic amount of hexamethylenetetramine results in good to high yields of the corresponding esters. Georg Thieme Verlag Stuttgart.

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