1389321-47-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1389321-47-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,8,9,3,2 and 1 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1389321-47:
(9*1)+(8*3)+(7*8)+(6*9)+(5*3)+(4*2)+(3*1)+(2*4)+(1*7)=184
184 % 10 = 4
So 1389321-47-4 is a valid CAS Registry Number.