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938181-77-2

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938181-77-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 938181-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,8,1,8 and 1 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 938181-77:
(8*9)+(7*3)+(6*8)+(5*1)+(4*8)+(3*1)+(2*7)+(1*7)=202
202 % 10 = 2
So 938181-77-2 is a valid CAS Registry Number.

938181-77-2Relevant articles and documents

Titanium(IV) isopropoxide mediated synthesis of pyrimidin-4-ones

Ramanjulu, Joshi M.,Demartino, Michael P.,Lan, Yunfeng,Marquis, Robert

, p. 2270 - 2273 (2010)

A novel, one-step method for the synthesis of tri- and tetrasubstituted pyrimidin-4-ones is reported. This method involves a titanium(IV)-mediated cyclization involving two sequential condensations of primary and β-ketoamides. The reaction is operationally facile, readily scalable, and offers rapid entry into differentially substituted pyrimidin-4-one scaffolds. The high functional group compatibility allows for substantial diversification in the products generated from this transformation.

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