666850-99-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666850-99-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,8,5 and 0 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 666850-99:
(8*6)+(7*6)+(6*6)+(5*8)+(4*5)+(3*0)+(2*9)+(1*9)=213
213 % 10 = 3
So 666850-99-3 is a valid CAS Registry Number.
666850-99-3Relevant academic research and scientific papers
PIPERIDINE-PYRIDAZONES AND PHTHALAZONES AS PDE4 INHIBITORS
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Page 28, (2010/02/06)
The compounds of a certain formula 1, in which the given substituents have the meanings as indicated in the description, are novel effective PDE4 inhibitors.
