871013-21-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871013-21-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,0,1 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 871013-21:
(8*8)+(7*7)+(6*1)+(5*0)+(4*1)+(3*3)+(2*2)+(1*1)=137
137 % 10 = 7
So 871013-21-7 is a valid CAS Registry Number.
871013-21-7Relevant academic research and scientific papers
SUBSTITUTED 2-QUINOLYL-OXAZOLES USEFUL AS PDE4 INHIBITORS
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Page/Page column 62-63, (2008/06/13)
The invention claims compounds of the: (formula I); wherein: (formula II) is a 5-membered heteroaryl; X is S or O; R1 is H, alkyl, cycloalkyl, cylcoalkylalkyl-, -CH2F, -CHF2, -CF3, -C(O)alkyl or -C(O)NR18/
