381687-65-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 381687-65-6 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 7 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 381687-65:
(8*3)+(7*8)+(6*1)+(5*6)+(4*8)+(3*7)+(2*6)+(1*5)=186
186 % 10 = 6
So 381687-65-6 is a valid CAS Registry Number.