185689-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 185689-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,5,6,8 and 9 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 185689-54:
(8*1)+(7*8)+(6*5)+(5*6)+(4*8)+(3*9)+(2*5)+(1*4)=197
197 % 10 = 7
So 185689-54-7 is a valid CAS Registry Number.