187809-32-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187809-32-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,8,0 and 9 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 187809-32:
(8*1)+(7*8)+(6*7)+(5*8)+(4*0)+(3*9)+(2*3)+(1*2)=181
181 % 10 = 1
So 187809-32-1 is a valid CAS Registry Number.