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148066-43-7

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148066-43-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 148066-43-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,8,0,6 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 148066-43:
(8*1)+(7*4)+(6*8)+(5*0)+(4*6)+(3*6)+(2*4)+(1*3)=137
137 % 10 = 7
So 148066-43-7 is a valid CAS Registry Number.

148066-43-7Relevant articles and documents

Furylcyclohexenones. 1. Synthesis and properties of 3- and 5-furyl-6-ethoxycarbonylcyclohexenones

Usova,Lysenko,Krapivin,Kul'nevich

, p. 548 - 554 (2007/10/03)

3- and 5-Furylcyclohexenones were obtained by the Michael reaction of furan chalcones with acetoacetic ester. Intermediate β-cycloketols were isolated in many cases. It was found that transformations of β-cycloketols by HClO4 and TrClO4 were a function of the nature of the substituent in position 5 of the alicycle. 5-Arylketols undergo dehydration, while 5-furyl derivatives split both water and the furan fragment, resulting in aromatization of the alicycle. The structure of the synthesized compounds was confirmed by the IR and PMR spectra. 1996 Plenum Publishing Corporation.

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