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402823-03-4

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402823-03-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 402823-03-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,2,8,2 and 3 respectively; the second part has 2 digits, 0 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 402823-03:
(8*4)+(7*0)+(6*2)+(5*8)+(4*2)+(3*3)+(2*0)+(1*3)=104
104 % 10 = 4
So 402823-03-4 is a valid CAS Registry Number.

402823-03-4Downstream Products

402823-03-4Relevant articles and documents

A novel synthesis of substituted quinolines using ring-closing metathesis (RCM): Its application to the synthesis of key intermediates for anti-malarial agents

Theeraladanon, Chumpol,Arisawa, Mitsuhiro,Nishida, Atsushi,Nakagawa, Masako

, p. 3017 - 3035 (2007/10/03)

A method for synthesizing substituted quinolines using ruthenium-catalyzed ring-closing metathesis as a key step has been developed. Substituted 1,2-dihydroquinolines, 4-silyloxy-1,2-dihydroquinoline and 4-methoxy-1,2- dihydroquinoline, were successfully synthesized in excellent yields via ene-ene metathesis and silyl or alkyl enol ether-ene metathesis, respectively. The synthetic intermediates of the antimalarial agents quinine, chloroquine, and PPMP-quinine hybrid were efficiently synthesized by this methodology.

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