188591-63-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188591-63-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,5,9 and 1 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 188591-63:
(8*1)+(7*8)+(6*8)+(5*5)+(4*9)+(3*1)+(2*6)+(1*3)=191
191 % 10 = 1
So 188591-63-1 is a valid CAS Registry Number.