259268-22-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 259268-22-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,2,6 and 8 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 259268-22:
(8*2)+(7*5)+(6*9)+(5*2)+(4*6)+(3*8)+(2*2)+(1*2)=169
169 % 10 = 9
So 259268-22-9 is a valid CAS Registry Number.
259268-22-9Relevant articles and documents
Azacalixarene: Synthesis, conformational analysis, and recognition behavior toward anions
Niikura, Kenichi,Anslyn, Eric V.
, p. 2769 - 2775 (1999)
The synthesis of an azacalix[4]arene (4) having four primary amino groups on the upper rim has been achieved. The synthesis was accomplished by a one-step cyclization starting from two easily synthesized building blocks. 1H NMR spectra indicate