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222967-31-9

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222967-31-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 222967-31-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,9,6 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 222967-31:
(8*2)+(7*2)+(6*2)+(5*9)+(4*6)+(3*7)+(2*3)+(1*1)=139
139 % 10 = 9
So 222967-31-9 is a valid CAS Registry Number.

222967-31-9Downstream Products

222967-31-9Relevant articles and documents

A new synthetic route for construction of the core of Zaragozic acids

Koshimizu, Haruta,Baba, Tomo,Yoshimitsu, Takehiko,Nagaoka, Hiroto

, p. 2777 - 2780 (2007/10/03)

A new synthetic route for construction of the core moiety of zaragozic acids from 2,5-furandimethanol (2) is described. This synthesis involves highly stereocontrolled transformation of 2 into 7-oxabicyclo[2.2.1]heptane derivative 13, and the Grob fragmentation-reduction-iodo acetalization reaction (one-pot process) of 13 as a key step to give 16.

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