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931113-57-4

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931113-57-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 931113-57-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,1,1,1 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 931113-57:
(8*9)+(7*3)+(6*1)+(5*1)+(4*1)+(3*3)+(2*5)+(1*7)=134
134 % 10 = 4
So 931113-57-4 is a valid CAS Registry Number.

931113-57-4Relevant articles and documents

Pectenotoxin-2 synthetic studies. 3. Assessment of the capacity for stereocontrolled cyclization to form the entire C1-C26 subunit based upon the double bond geometry across C15-C16

O'Connor, Patrick D.,Knight, Christopher K.,Friedrich, Dirk,Peng, Xiaowen,Paquette, Leo A.

, p. 1747 - 1754 (2008/02/01)

Second-generation synthetic routes to enantiopure sulfone 21 and aldehyde 24 are described. The union of these two intermediates by means of a Julia-Kocienski coupling gave rise to a series of E-configured building blocks that did not prove amenable to tr

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