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206653-69-2

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206653-69-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 206653-69-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,6,5 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 206653-69:
(8*2)+(7*0)+(6*6)+(5*6)+(4*5)+(3*3)+(2*6)+(1*9)=132
132 % 10 = 2
So 206653-69-2 is a valid CAS Registry Number.

206653-69-2Downstream Products

206653-69-2Relevant articles and documents

Lewis-acid-assisted "Tandem Claisen rearrangement": Application to the synthesis of a new type of macrocycle containing phenolic moieties

Uzawa, Hirotaka,Hiratani, Kazuhisa,Minoura, Norihiko,Takahashi, Toshikazu

, p. 307 - 308 (1998)

Tandem Claisen rearrangement promoted by Et2AlCl and 2-methyl-2-butene has produced better results than thermal rearrangement at synthesizing a new type of macrocycles containing phenolic moieties, from the corresponding macrocyclic polyether c

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