213970-22-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213970-22-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,9,7 and 0 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 213970-22:
(8*2)+(7*1)+(6*3)+(5*9)+(4*7)+(3*0)+(2*2)+(1*2)=120
120 % 10 = 0
So 213970-22-0 is a valid CAS Registry Number.
213970-22-0Relevant articles and documents
The direct synthesis of isoflavans VIA α-alkylation of phenylacetates
Versteeg, Marietjie,Bezuidenhoudt, Barend C. B.,Ferreira, Daneel
, p. 1373 - 1394 (2007/10/03)
Deprotonation of oxygenated phenylacetates and quenching of the enolates with oxygenated benzylic electrophiles, afforded 2,3-diarylpropanoates which served as precursors to the isoflavans following consecutive reduction and cyclization steps.
