198757-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 198757-92-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,7,5 and 7 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 198757-92:
(8*1)+(7*9)+(6*8)+(5*7)+(4*5)+(3*7)+(2*9)+(1*2)=215
215 % 10 = 5
So 198757-92-5 is a valid CAS Registry Number.