188774-89-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 188774-89-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,8,7,7 and 4 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 188774-89:
(8*1)+(7*8)+(6*8)+(5*7)+(4*7)+(3*4)+(2*8)+(1*9)=212
212 % 10 = 2
So 188774-89-2 is a valid CAS Registry Number.