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220598-39-0

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220598-39-0 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 220598-39-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,0,5,9 and 8 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 220598-39:
(8*2)+(7*2)+(6*0)+(5*5)+(4*9)+(3*8)+(2*3)+(1*9)=130
130 % 10 = 0
So 220598-39-0 is a valid CAS Registry Number.

220598-39-0Upstream product

220598-39-0Relevant articles and documents

Synthesis of 3-hydroxyindolin-2-one alkaloids, (±)-donaxaridine and (±)-convolutamydines A and E, through enolization-Claisen rearrangement of 2-allyloxyindolin-3-ones

Kawasaki, Tomomi,Nagaoka, Miyuki,Satoh, Tomoko,Okamoto, Ayako,Ukon, Rie,Ogawa, Atsuyo

, p. 3493 - 3503 (2004)

Claisen rearrangement triggered by enolization of 2-allyloxyindolin-3-ones with DBU was performed in order to prepare 3-allyl-3-hydroxyindolin-2-ones. Total synthesis of 3-hydroxyindolin-2-one alkaloids, (±)-donaxaridine, as well as (±)-convolutamydines A

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