89174-87-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89174-87-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,1,7 and 4 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 89174-87:
(7*8)+(6*9)+(5*1)+(4*7)+(3*4)+(2*8)+(1*7)=178
178 % 10 = 8
So 89174-87-8 is a valid CAS Registry Number.
89174-87-8Relevant articles and documents
PHOTOCHEMICAL REACTIONS OF N',N'-DIALKYL-N-aroylureas
Aoyama, Hiromu,Sakamoto, Masami,Ohnota, Michiro,Omote, Yoshimori
, p. 1905 - 1908 (1983)
N',N'-Dibenzyl and N',N'-diisopropyl-N-aroylureas undergo cyclization on irradiation to give the corresponding imidazolidin-2-ones via intramolecular hydrogen abstraction by the aroyl carbonyl group.