381684-82-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 381684-82-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,8,1,6,8 and 4 respectively; the second part has 2 digits, 8 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 381684-82:
(8*3)+(7*8)+(6*1)+(5*6)+(4*8)+(3*4)+(2*8)+(1*2)=178
178 % 10 = 8
So 381684-82-8 is a valid CAS Registry Number.