133157-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133157-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,1,5 and 7 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 133157-77:
(8*1)+(7*3)+(6*3)+(5*1)+(4*5)+(3*7)+(2*7)+(1*7)=114
114 % 10 = 4
So 133157-77-4 is a valid CAS Registry Number.
133157-77-4Relevant articles and documents
Highly diastereoselective addition to a novel chiral oxazinone. Further approaches to chiral quaternary carbon compounds
Meyers,Leonard Jr.,Romine
, p. 597 - 600 (2007/10/02)
The chiral bicyclic oxazinone 2d, readily obtained, show high diastereoselective 1,4-addition of cuprates and catalyzed hydrogenation.
