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15057-22-4

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15057-22-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 15057-22-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,0,5 and 7 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 15057-22:
(7*1)+(6*5)+(5*0)+(4*5)+(3*7)+(2*2)+(1*2)=84
84 % 10 = 4
So 15057-22-4 is a valid CAS Registry Number.

15057-22-4Relevant articles and documents

On the influence of phosphoric ester groups in geranyldiphosphate biosynthesis

Jacob, L.,Julia, M.,Pfeiffer, B.,Rolando, C.

, p. 719 - 733 (2007/10/02)

Elimination reactions have been performed on sulfonium salts mimicking the intermediates in the title reaction.It has been found that the direction of the elimination is strongly influenced by the phosphate residue favouring the formation of the "natural" isomer.This has been attributed to the very strong electron attracting power of the phosphoric ester group.Keywords: prenyl transferase / phosphoric esters / orientation of elimination reactions

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