181864-34-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181864-34-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,8,6 and 4 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 181864-34:
(8*1)+(7*8)+(6*1)+(5*8)+(4*6)+(3*4)+(2*3)+(1*4)=156
156 % 10 = 6
So 181864-34-6 is a valid CAS Registry Number.
181864-34-6Relevant articles and documents
Phenyliodonium derivatives from 4-aminocoumarin and their reactivity
Papoutsis, Ioannis,Spyroudis, Spyros,Varvoglis, Anastasios
, p. 579 - 581 (1996)
The reaction of 4-aminocoumarin with [hydroxy(tosyloxy)iodo]benzene affords 4-amino-3-phenyliodoniocoumarin tosylate which upon basification is converted to the corresponding stable iodine-nitrogen 1,4-dipole. The reactivity of the latter is briefly discussed.
