1293915-99-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1293915-99-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,3,9,1 and 5 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 1293915-99:
(9*1)+(8*2)+(7*9)+(6*3)+(5*9)+(4*1)+(3*5)+(2*9)+(1*9)=197
197 % 10 = 7
So 1293915-99-7 is a valid CAS Registry Number.