254428-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 254428-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,4,4,2 and 8 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 254428-89:
(8*2)+(7*5)+(6*4)+(5*4)+(4*2)+(3*8)+(2*8)+(1*9)=152
152 % 10 = 2
So 254428-89-2 is a valid CAS Registry Number.
254428-89-2Relevant academic research and scientific papers
Benzoxazoles with PDE-inhibiting activity
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, (2008/06/13)
Compounds of formula I in which R1, R2, R3 and A have the meaning set forth in the specification, are selective cyclic nucleotide phosphodiesterase (PDE) inhibitors useful as therapeutics in human and veterinary medicine. They are distinguished by low tox
