1057641-31-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1057641-31-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,5,7,6,4 and 1 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1057641-31:
(9*1)+(8*0)+(7*5)+(6*7)+(5*6)+(4*4)+(3*1)+(2*3)+(1*1)=142
142 % 10 = 2
So 1057641-31-2 is a valid CAS Registry Number.
1057641-31-2Relevant academic research and scientific papers
PYRAZOLO (3, 4-B) PYRIDINE DERIVATIVES AS PHOSPHODIESTERASE INHIBITORS
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Page/Page column 100, (2008/12/07)
The present invention relates to phosphodiesterase (PDE) type 4, phosphodiesterase (PDE) type 7 and dual PDE type 4 /PDE type 7 inhibitors. Compounds disclosed herein having the structure of Formura 1: can be useful in the treatment, prevention, inhibitio