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91949-76-7

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91949-76-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 91949-76-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,1,9,4 and 9 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 91949-76:
(7*9)+(6*1)+(5*9)+(4*4)+(3*9)+(2*7)+(1*6)=177
177 % 10 = 7
So 91949-76-7 is a valid CAS Registry Number.

91949-76-7Relevant articles and documents

Photochemical Synthesis of Decipiene Diterpenes

Dauben, William G.,Shapiro, Gideon

, p. 4252 - 4258 (2007/10/02)

The decipiene diterpene nucleus has been synthesized by an intramolecular photocycloaddition between an enone and an allene grouping.The process makes use, for the first time, of a stereocontrol element at a remote center in the precursor unit to control the final stereochemistry of the product.A formal total synthesis of (+/-)-trihydroxydecipiadiene has been achieved.

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