169681-41-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 169681-41-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,9,6,8 and 1 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 169681-41:
(8*1)+(7*6)+(6*9)+(5*6)+(4*8)+(3*1)+(2*4)+(1*1)=178
178 % 10 = 8
So 169681-41-8 is a valid CAS Registry Number.