381689-05-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 381689-05-0 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 9 respectively; the second part has 2 digits, 0 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 381689-05:
(8*3)+(7*8)+(6*1)+(5*6)+(4*8)+(3*9)+(2*0)+(1*5)=180
180 % 10 = 0
So 381689-05-0 is a valid CAS Registry Number.