163979-49-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 163979-49-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,3,9,7 and 9 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 163979-49:
(8*1)+(7*6)+(6*3)+(5*9)+(4*7)+(3*9)+(2*4)+(1*9)=185
185 % 10 = 5
So 163979-49-5 is a valid CAS Registry Number.