167769-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 167769-57-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,7,7,6 and 9 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 167769-57:
(8*1)+(7*6)+(6*7)+(5*7)+(4*6)+(3*9)+(2*5)+(1*7)=195
195 % 10 = 5
So 167769-57-5 is a valid CAS Registry Number.