89950-14-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89950-14-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,9,5 and 0 respectively; the second part has 2 digits, 1 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 89950-14:
(7*8)+(6*9)+(5*9)+(4*5)+(3*0)+(2*1)+(1*4)=181
181 % 10 = 1
So 89950-14-1 is a valid CAS Registry Number.
89950-14-1Relevant articles and documents
Three-component synthesis of 3,4-dihydroisoquinoline derivatives
Shklyaev, Yu. V.,Nifontov, Yu. V.
, p. 844 - 849 (2007/10/03)
A simple and convenient method for the synthesis of 1-substituted 3,3-dimethyl-3,4-dihydroisoquinolines was developed. The method is based on the [2+2+2] cyclization of alkyl- or alkoxybenzenes with isobutyraldehyde and nitriles.