257628-75-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 257628-75-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,7,6,2 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 257628-75:
(8*2)+(7*5)+(6*7)+(5*6)+(4*2)+(3*8)+(2*7)+(1*5)=174
174 % 10 = 4
So 257628-75-4 is a valid CAS Registry Number.
257628-75-4Relevant articles and documents
Highly stereoselective synthesis of exo and endo indolotropanes
Forbes, Ian T.
, p. 9293 - 9295 (1999)
Highly stereoselective routes to exo and endo indolotropanes have been developed. This provides a facile route to these bicyclic analogues of the pharmaceutically active indolopiperidine motif.