77528-45-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 77528-45-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,7,5,2 and 8 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 77528-45:
(7*7)+(6*7)+(5*5)+(4*2)+(3*8)+(2*4)+(1*5)=161
161 % 10 = 1
So 77528-45-1 is a valid CAS Registry Number.
77528-45-1Relevant academic research and scientific papers
Improved synthesis of Protoberberine Type Alkaloids
D'Sa, A. S.,Deodhar, K. D.
, p. 999 (2007/10/02)
An improved synthesis of protoberberine type of compounds is described.The amido acid (IIa) obtained by the condensation of homoveratrylamine and homophthalic acid anhydride undergoes cyclisation in the presence of PPA to give 5,6-dihydro-2,3-dimethoxy-8-
