133745-58-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133745-58-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,7,4 and 5 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133745-58:
(8*1)+(7*3)+(6*3)+(5*7)+(4*4)+(3*5)+(2*5)+(1*8)=131
131 % 10 = 1
So 133745-58-1 is a valid CAS Registry Number.
133745-58-1Relevant articles and documents
Diastereoselective routes toendo andexo ethyl 1-azabicyclo[2.2.1] hept-3-YL carboxylates
Orlek, Barry S.,Wadsworth, Harry,Wyman, Paul,Hadley, Michael S.
, p. 1241 - 1244 (2007/12/18)
Diastereoselective routes to endo and exo ethyl 1-azabicyclo[2.2.1]hept-3-yl carboxylates (1) and (2) based on the hydrogen bromide cleavage of the isomeric [4.3.0] bicyclic cis fused lactones (3) and (4) are described.
