Cas 15210-04-5,ethyl 2-hydroxy-2-(2-oxocyclohexyl)propanoate

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Check Digit Verification of cas no

The CAS Registry Mumber 15210-04-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,2,1 and 0 respectively; the second part has 2 digits, 0 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 15210-04:
(7*1)+(6*5)+(5*2)+(4*1)+(3*0)+(2*0)+(1*4)=55
55 % 10 = 5
So 15210-04-5 is a valid CAS Registry Number.

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15210-04-5Relevant articles and documents

TiCl4-n-Bu3N-mediated cascade annulation of ketones with α-ketoesters: A facile synthesis of highly substituted fused γ-alkylidene-butenolides

Palange, Megha N.,Gonnade, Rajesh G.,Kontham, Ravindar

, p. 5749 - 5759 (2019/06/18)

A facile protocol for the synthesis of highly substituted fused γ-alkylidene butenolides using direct annulation of ketones with α-ketoesters, which proceeds through TiCl4-n-Bu3N mediated aldol addition followed by an intramolecular

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15210-04-5