1257250-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257250-81-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,2,5 and 0 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1257250-81:
(9*1)+(8*2)+(7*5)+(6*7)+(5*2)+(4*5)+(3*0)+(2*8)+(1*1)=149
149 % 10 = 9
So 1257250-81-9 is a valid CAS Registry Number.
1257250-81-9Relevant articles and documents
CINNOLINE DERIVATIVES AS AS BTK INHIBITORS
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, (2013/10/21)
Disclosed are compounds of Formula 1, and pharmaceutically acceptable salts thereof, wherein R1, R2, R3, R4, and R5 are defined in the specification. The compounds are inhibitors of Bruton's tyrosine
