116589-43-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 116589-43-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,1,6,5,8 and 9 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 116589-43:
(8*1)+(7*1)+(6*6)+(5*5)+(4*8)+(3*9)+(2*4)+(1*3)=146
146 % 10 = 6
So 116589-43-6 is a valid CAS Registry Number.
116589-43-6Relevant articles and documents
New Route to Synthesis of Some 8-(Dihydrocinnamoyl)dihydrocumarin Derivatives
Ahluwalia, V. K.,Nayal, Lalita,Tehim, A. K.
, p. 70 - 71 (2007/10/02)
The synthesis of 8-dihydrocinnamoyldihydrocoumarin derivatives starting from 8-acetyl-7-methoxy substituted coumarins involves: (i) aldol condensation with substituted benzaldehydes; (ii) partial demethylation of condensation products (AlCl3/acetonitrile)