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104830-16-2

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104830-16-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 104830-16-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,4,8,3 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 104830-16:
(8*1)+(7*0)+(6*4)+(5*8)+(4*3)+(3*0)+(2*1)+(1*6)=92
92 % 10 = 2
So 104830-16-2 is a valid CAS Registry Number.

104830-16-2Relevant articles and documents

A convenient approach to δ-amino-β-ketoesters by vinylogous Mannich reaction of masked acetoacetates

Villano, Rosaria,Acocella, Maria Rosaria,Massa, Antonio,Palombi, Laura,Scettri, Arrigo

, p. 12317 - 12323 (2007)

SiCl4 is an efficient and selective catalyst for the vinylogous Mannich reaction of linear and cyclic synthetic equivalents of acetoacetate dianion, leading to δ-amino-β-ketoesters in moderate to high yields and complete γ-selectivity; anti-diastereoselectivity was observed by using a γ-methyl-substituted cyclic silyloxydiene.

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