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133523-41-8

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133523-41-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 133523-41-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,5,2 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 133523-41:
(8*1)+(7*3)+(6*3)+(5*5)+(4*2)+(3*3)+(2*4)+(1*1)=98
98 % 10 = 8
So 133523-41-8 is a valid CAS Registry Number.

133523-41-8Relevant articles and documents

On the Remarkable Propensity for Carbon-Carbon Bond Cleavage Reactions in the C8-C10 Region of FK-506

Fisher, Matthew J.,Chow, Ken,Villalobos, Anabella,Danishefsky, Samuel J.

, p. 2900 - 2907 (2007/10/02)

It has been deduced from a series of transformations that formation of a tetrahedral intermediate at C9 in FK-506 occasions fragmentation of the C9-C10 bond by a retro-Claisen-like pathway or the C9-C8 bond by a benzilic acid type rearrangement.Reduction

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