515178-90-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 515178-90-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 5,1,5,1,7 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 515178-90:
(8*5)+(7*1)+(6*5)+(5*1)+(4*7)+(3*8)+(2*9)+(1*0)=152
152 % 10 = 2
So 515178-90-2 is a valid CAS Registry Number.
515178-90-2Relevant articles and documents
A sequential stereocontrolled cyclopropane ring formation and semi-pinacol rearrangement
Marson, Charles M.,Oare, Catriona A.,McGregor, Jane,Walsgrove, Timothy,Grinter, Trevor J.,Adams, Harry
, p. 141 - 143 (2003)
Treatment of an unsaturated 2,3-epoxy alcohol with SnBr4 leads to a stereoselective formation of a cyclopropane ring, and an α-ketol unit as part of a subsequent ring expansion.