163260-91-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163260-91-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,2,6 and 0 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 163260-91:
(8*1)+(7*6)+(6*3)+(5*2)+(4*6)+(3*0)+(2*9)+(1*1)=121
121 % 10 = 1
So 163260-91-1 is a valid CAS Registry Number.