23523-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 23523-84-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,3,5,2 and 3 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 23523-84:
(7*2)+(6*3)+(5*5)+(4*2)+(3*3)+(2*8)+(1*4)=94
94 % 10 = 4
So 23523-84-4 is a valid CAS Registry Number.
23523-84-4Relevant articles and documents
THE ASYMMETRIC TOTAL SYNTHESIS OF (+)-RETICULINE
Meyers, A. I.,Guiles, Joseph
, p. 295 - 301 (2007/10/02)
The synthesis of the title compound was accomplished via chiral formamidines in 5 steps (30.4percent overall) and 98.6percent ee.