Cas 638169-43-4,2-(2-acetylphenyl)nicotinic acid ethyl ester

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Check Digit Verification of cas no

The CAS Registry Mumber 638169-43-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,3,8,1,6 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 638169-43:
(8*6)+(7*3)+(6*8)+(5*1)+(4*6)+(3*9)+(2*4)+(1*3)=184
184 % 10 = 4
So 638169-43-4 is a valid CAS Registry Number.

638169-43-4Upstream product

638169-43-4Downstream Products

638169-47-8 2-(2-acetylphenyl)nicotinic acid

638169-43-4Relevant articles and documents

Novel Extension of Meyers' Methodology: Stereoselective Construction of Axially Chiral 7,5-Fused Bicyclic Lactams

Penhoat, Mael,Levacher, Vincent,Dupas, Georges

, p. 9517 - 9520 (2003)

A novel extension of Meyer's lactamization is reported for the preparation of seven-membered ring lactams 1a-d incorporating a biaryl unit. The required keto-esters 2a-c were readily accessible via the Suzuki coupling reaction. A borylation-Suzuki couplin

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638169-43-4