188650-11-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188650-11-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,6,5 and 0 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 188650-11:
(8*1)+(7*8)+(6*8)+(5*6)+(4*5)+(3*0)+(2*1)+(1*1)=165
165 % 10 = 5
So 188650-11-5 is a valid CAS Registry Number.
188650-11-5Relevant articles and documents
Synthesis of pyrazole-containing azacrown ethers by intramolecular nitrilimine cycloadditions
Broggini, Gianluigi,Garanti, Luisa,Molteni, Giorgio,Zecchi, Gaetano
, p. 3005 - 3014 (1997)
Intramolecular cycloadditions of suitably functionalised nitrilimines have been exploited to prepare a number of crown azaethers having a medium or large ring annulated to pyrazole unit(s).
