187740-74-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 187740-74-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,7,7,4 and 0 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 187740-74:
(8*1)+(7*8)+(6*7)+(5*7)+(4*4)+(3*0)+(2*7)+(1*4)=175
175 % 10 = 5
So 187740-74-5 is a valid CAS Registry Number.