99902-22-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 99902-22-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 9,9,9,0 and 2 respectively; the second part has 2 digits, 2 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 99902-22:
(7*9)+(6*9)+(5*9)+(4*0)+(3*2)+(2*2)+(1*2)=174
174 % 10 = 4
So 99902-22-4 is a valid CAS Registry Number.
99902-22-4Relevant academic research and scientific papers
Cyclopentenone Derivatives, X.- Stereoselective Routes to Bicyclooctanones
Knoelker, Hans-Joachim,Winterfeldt, Ekkehard
, p. 465 - 478 (2007/10/02)
Annulation of double donating molecules like dimethyl glutaconate as well as dimethyl 3-oxoglutarate to 4-acetoxy-1-cyclopenten-2-one opens stereoselective routes to various bicyclooctanone derivatives.
