426840-05-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 426840-05-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,2,6,8,4 and 0 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 426840-05:
(8*4)+(7*2)+(6*6)+(5*8)+(4*4)+(3*0)+(2*0)+(1*5)=143
143 % 10 = 3
So 426840-05-3 is a valid CAS Registry Number.
426840-05-3Relevant articles and documents
(Dihydro) Isoquinoline derivatives as phosphodiesterase inhibitors
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, (2008/06/13)
3,4-Dihydroisoquinoline and isoquinoline compounds of formula I, in which Ar represents a phenyl raidcal of the formulae IIa, IIb or IIc are novel effective PDE7 inhibitors.