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206990-79-6

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206990-79-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 206990-79-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,6,9,9 and 0 respectively; the second part has 2 digits, 7 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 206990-79:
(8*2)+(7*0)+(6*6)+(5*9)+(4*9)+(3*0)+(2*7)+(1*9)=156
156 % 10 = 6
So 206990-79-6 is a valid CAS Registry Number.

206990-79-6Relevant articles and documents

A new synthetic approach to a fungal β-lactone based on the asymmetric [2,3]-wittig rearrangement

Tomooka, Katsuhiko,Takeda, Takahiro,Kuen, Au Wing,Nakai, Takeshi

, p. 671 - 674 (2007/10/03)

An asymmetric synthesis of the chiral β-lactone precursor of the HMG-CoA synthase, inhibitor L-659,699, is described, which involves as the key step an asymmetric [2,3]-Wittig rearrangement to control the stereogenic centers at the ring carbons (C2' and C

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