655237-89-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 655237-89-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,5,2,3 and 7 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 655237-89:
(8*6)+(7*5)+(6*5)+(5*2)+(4*3)+(3*7)+(2*8)+(1*9)=181
181 % 10 = 1
So 655237-89-1 is a valid CAS Registry Number.