167172-77-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 167172-77-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,1,7 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 167172-77:
(8*1)+(7*6)+(6*7)+(5*1)+(4*7)+(3*2)+(2*7)+(1*7)=152
152 % 10 = 2
So 167172-77-2 is a valid CAS Registry Number.