781628-30-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 781628-30-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 7,8,1,6,2 and 8 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 781628-30:
(8*7)+(7*8)+(6*1)+(5*6)+(4*2)+(3*8)+(2*3)+(1*0)=186
186 % 10 = 6
So 781628-30-6 is a valid CAS Registry Number.