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1299358-21-6

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1299358-21-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1299358-21-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,9,3,5 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1299358-21:
(9*1)+(8*2)+(7*9)+(6*9)+(5*3)+(4*5)+(3*8)+(2*2)+(1*1)=206
206 % 10 = 6
So 1299358-21-6 is a valid CAS Registry Number.

1299358-21-6Relevant articles and documents

Synthetic studies towards leiodermatolide: Rapid stereoselective syntheses of key fragments

Navickas, Vaidotas,Rink, Christian,Maier, Martin E.

, p. 191 - 194 (2011/03/22)

The synthesis of three key fragments of the novel 16-membered macrolide leiodermatolide is described. The stereotetrad-containing building block was prepared via a Marshall-Tamaru reaction on an aldehyde obtained by organocatalysis. For a second building block, a Marshall-Tamaru reaction was used as well. The side-chain fragment containing a hydroxy δ-lactone could be obtained by intramolecular Reformatsky reaction. Georg Thieme Verlag Stuttgart.

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