1416470-20-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1416470-20-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,1,6,4,7 and 0 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1416470-20:
(9*1)+(8*4)+(7*1)+(6*6)+(5*4)+(4*7)+(3*0)+(2*2)+(1*0)=136
136 % 10 = 6
So 1416470-20-6 is a valid CAS Registry Number.
1416470-20-6Relevant articles and documents
NOVEL PHTHALAZINONE-PYRROLOPYRIMIDINECARBOXAMIDE DERIVATIVES
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Paragraph 0722, (2014/05/07)
The compounds of formula (1) in which R1, R7, R8, R9, R10, R17, R18, R19, R20 and m have the meanings as given in the description, are novel effective inhibitors of type 4 and type 5 phosphodiesterase.