930781-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 930781-90-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,3,0,7,8 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 930781-90:
(8*9)+(7*3)+(6*0)+(5*7)+(4*8)+(3*1)+(2*9)+(1*0)=181
181 % 10 = 1
So 930781-90-1 is a valid CAS Registry Number.