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123487-68-3

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123487-68-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 123487-68-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,3,4,8 and 7 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 123487-68:
(8*1)+(7*2)+(6*3)+(5*4)+(4*8)+(3*7)+(2*6)+(1*8)=133
133 % 10 = 3
So 123487-68-3 is a valid CAS Registry Number.

123487-68-3Relevant academic research and scientific papers

Applications of an asymmetric [2 + 2]-photocycloaddition. Total synthesis of (-)-echinosporin. Construction of an advanced 11-deoxyprostaglandin intermediate

Smith III, Amos B.,Sulikowski, Gary A.,Sulikowski, Michelle M.,Fujirooto, Kataumi

, p. 2567 - 2576 (2007/10/02)

The first total synthesis of the novel antitumor metabolite (-)-echinosporin (1) has been achieved. Asymmetric [2 + 2]-photocycloaddition of dihydrofuran acetonide (+)-8 to 2-cyclopentenone (7) constituted the cornerstone of the synthetic strategy. Mitsun

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