22431-02-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 22431-02-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,2,4,3 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 22431-02:
(7*2)+(6*2)+(5*4)+(4*3)+(3*1)+(2*0)+(1*2)=63
63 % 10 = 3
So 22431-02-3 is a valid CAS Registry Number.
22431-02-3Relevant articles and documents
Quantitative reaction cascades of ninhydrin in the solid state
Kaupp, Gerd,Naimi-Jamal, M. Reza,Schmeyers, Jens
, p. 594 - 600 (2002)
Crystalline ninhydrin (1) undergoes waste-free solid-state cascade reactions with dimedone, L-proline, three o-phenylenediamines, o-mercaptoaniline, two ureas, three thioureas, and methyl 3-aminocrotonate. The yields are quantitative and give pure crystal
