1257535-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1257535-63-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,5,3 and 5 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1257535-63:
(9*1)+(8*2)+(7*5)+(6*7)+(5*5)+(4*3)+(3*5)+(2*6)+(1*3)=169
169 % 10 = 9
So 1257535-63-9 is a valid CAS Registry Number.