1259964-91-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1259964-91-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,9,9,6 and 4 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1259964-91:
(9*1)+(8*2)+(7*5)+(6*9)+(5*9)+(4*6)+(3*4)+(2*9)+(1*1)=214
214 % 10 = 4
So 1259964-91-4 is a valid CAS Registry Number.