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959923-22-9

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959923-22-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 959923-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,9,9,2 and 3 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 959923-22:
(8*9)+(7*5)+(6*9)+(5*9)+(4*2)+(3*3)+(2*2)+(1*2)=229
229 % 10 = 9
So 959923-22-9 is a valid CAS Registry Number.

959923-22-9Upstream product

959923-22-9Relevant academic research and scientific papers

A relay route for the synthesis of azadirachtin

Veitch, Gemma E.,Beckmann, Edith,Burke, Brenda J.,Boyer, Alistair,Ayats, Carles,Ley, Steven V.

, p. 7633 - 7635 (2008/09/19)

(Chemical Equation Presented) 22 Years in the making: Azadirachtin (1) was synthesized for the first time by a highly convergent approach, utilizing a Claisen rearrangement and a radical cyclization as key steps. End-game strategies relied on intermediate 2, which could be obtained by synthetic methods as well as by degradation of 1. Bn = benzyl, TBS = tert- butyldimethylsilyl.

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