171781-80-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 171781-80-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,1,7,8 and 1 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 171781-80:
(8*1)+(7*7)+(6*1)+(5*7)+(4*8)+(3*1)+(2*8)+(1*0)=149
149 % 10 = 9
So 171781-80-9 is a valid CAS Registry Number.
171781-80-9Relevant articles and documents
Structure of the Calystegines: New alkaloids of the nortropane family
Ducrot,Lallemand
, p. 3879 - 3882 (2007/10/02)
Three new alkaloids have been isolated from Calystegia sepium; their structures have been established from their 1H and 13C N.M.R. spectra, and confirmed by the synthesis of model compounds.
