1421857-71-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421857-71-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,8,5 and 7 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1421857-71:
(9*1)+(8*4)+(7*2)+(6*1)+(5*8)+(4*5)+(3*7)+(2*7)+(1*1)=157
157 % 10 = 7
So 1421857-71-7 is a valid CAS Registry Number.
1421857-71-7Relevant articles and documents
PYRAZOLO[4,3-C]PYRIDINE DERIVATIVES AS JAK INHIBITORS
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Page/Page column 47, (2013/03/26)
The present invention relates to compounds of formula (I) wherein X1 to X5, Y, Z1 to Z4, and R have the meaning as cited in the description and the claims. Said compounds are useful as JAK inhibitors for the tre