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Cyclohexanecarboxylic acid, 2-ethylidene-1-methyl-6-oxo-, ethyl ester, (Z)- is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

139197-40-3

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139197-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 139197-40-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,1,9 and 7 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139197-40:
(8*1)+(7*3)+(6*9)+(5*1)+(4*9)+(3*7)+(2*4)+(1*0)=153
153 % 10 = 3
So 139197-40-3 is a valid CAS Registry Number.

139197-40-3Downstream Products

139197-40-3Relevant academic research and scientific papers

Formation of seven- and eight-membered rings by Mn(III)-based oxidative free-radical cyclization

Snider, Barry B.,Merritt, John E.

, p. 8663 - 8678 (2007/10/02)

Oxidative free-radical cyclizations of acetoacetates 1, 8, 17, and 20 with Mn(OAc)3·2H2 and Cu(OAc)2·H2O in acetic acid provide cycloheptenes and cyclooctenes in moderate to good yield. Tandem cyclizations of 28, 35 and 51 provide bicyclo[4.2.1]nonanes, bicyclo[5.2.1]decanes, bicyclo[5.3.0]decanes and bicyclo[6.3.0]undecanes.

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