156997-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 156997-88-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,6,9,9 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 156997-88:
(8*1)+(7*5)+(6*6)+(5*9)+(4*9)+(3*7)+(2*8)+(1*8)=205
205 % 10 = 5
So 156997-88-5 is a valid CAS Registry Number.
156997-88-5Relevant articles and documents
Synthesis of Nb-acyltryptamines and their 1-hydroxy-tryptamine derivatives as new α2-blockers
Yamada, Koji,Tanaka, Yoshio,Somei, Masanori
experimental part, p. 635 - 645 (2009/12/26)
Nb-Acyl- and Nb-acyl-1-hydroxytryptamines are found to be novel and structurally simple (α2-blocker for the treatment of erectile dysfunction.