222609-34-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 222609-34-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,2,6,0 and 9 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 222609-34:
(8*2)+(7*2)+(6*2)+(5*6)+(4*0)+(3*9)+(2*3)+(1*4)=109
109 % 10 = 9
So 222609-34-9 is a valid CAS Registry Number.
222609-34-9Relevant academic research and scientific papers
Enantioselective hydrogenation of pyrrolidine-2,3,5-triones over the Pt- cinchonidine system
Szabo,Kuenzle,Mallat,Baiker
, p. 61 - 76 (2007/10/03)
1- and 4-Substituted pyrrolidine-2,3,5-triones 5, 6 and 9 have been synthesized and hydrogenated to 3-hydroxy derivatives 10-12 with 17-91% ee using a 5 wt% Pt/Al2O3 catalyst in the presence of small amounts of cinchonidine. The infl
