219870-21-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219870-21-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,8,7 and 0 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 219870-21:
(8*2)+(7*1)+(6*9)+(5*8)+(4*7)+(3*0)+(2*2)+(1*1)=150
150 % 10 = 0
So 219870-21-0 is a valid CAS Registry Number.
219870-21-0Relevant articles and documents
A stereoselective approach to the synthesis of γ-silylated amino acids
Reginato, Gianna,Mordini, Alessandro,Valacchi, Michela
, p. 9545 - 9548 (1998)
The synthesis of enantiomerically enriched silicon containing amino acids is described. Silylcupration of 2,2-dimethyl-3-(tert-butoxycarbonyl)- 4-ethynyloxazolidine, easily derived from serine aldehyde, afforded regio- and stereoselectively γ-silylated et
