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949530-06-7

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949530-06-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 949530-06-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,9,5,3 and 0 respectively; the second part has 2 digits, 0 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 949530-06:
(8*9)+(7*4)+(6*9)+(5*5)+(4*3)+(3*0)+(2*0)+(1*6)=197
197 % 10 = 7
So 949530-06-7 is a valid CAS Registry Number.

949530-06-7Upstream product

949530-06-7Relevant articles and documents

Toward new camptothecins. Part 6: Synthesis of crucial ketones and their use in Friedl?nder reaction

Gavara, Laurent,Boisse, Thomas,Hénichart, Jean-Pierre,Da?ch, Adam,Rigo, Beno?t,Gautret, Philippe

, p. 7544 - 7561 (2010)

In the context of the preparation of camptothecin and luotonin A analogs, the synthesis of some key keto-precursors and their use in Friedl?nder condensation are described. This paper also focuses on the stability of these keto intermediates and emphasizes the major differences between indolizinones and pyrroloquinazolinones series. Noteworthy is also the report of some original structures isolated as by-products of some experiments.

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