658707-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 658707-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,8,7,0 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 658707-89:
(8*6)+(7*5)+(6*8)+(5*7)+(4*0)+(3*7)+(2*8)+(1*9)=212
212 % 10 = 2
So 658707-89-2 is a valid CAS Registry Number.
658707-89-2Relevant academic research and scientific papers
PHOSPHODIESTERASE 4 INHIBITORS
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Page 61, (2008/06/13)
PDE4 inhibition is achieved by novel compounds of the Formula (I), wherein R1 and R2 are as defined herein.