133320-18-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 133320-18-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,3,3,2 and 0 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 133320-18:
(8*1)+(7*3)+(6*3)+(5*3)+(4*2)+(3*0)+(2*1)+(1*8)=80
80 % 10 = 0
So 133320-18-0 is a valid CAS Registry Number.
133320-18-0Relevant 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.