183968-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 183968-56-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,3,9,6 and 8 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 183968-56:
(8*1)+(7*8)+(6*3)+(5*9)+(4*6)+(3*8)+(2*5)+(1*6)=191
191 % 10 = 1
So 183968-56-1 is a valid CAS Registry Number.