117212-36-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 117212-36-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,7,2,1 and 2 respectively; the second part has 2 digits, 3 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 117212-36:
(8*1)+(7*1)+(6*7)+(5*2)+(4*1)+(3*2)+(2*3)+(1*6)=89
89 % 10 = 9
So 117212-36-9 is a valid CAS Registry Number.
117212-36-9Relevant articles and documents
Preparation and characterization of bridged naphthoxazinium salts
Kanitz, Andreas,Hartmann, Horst
, p. 923 - 930 (1999)
By condensation of bridged 4-arylazo-substituted 3-hydroxyanilines 18 and bridged or unbridged 4-arylazo-substituted 1-naphthylamines 19-23 with bridged 1-naphthylamines 15-17 and 3-aminophenols 14, respectively, in the presence of perchloric acid, bridge