89577-39-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 89577-39-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,5,7 and 7 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 89577-39:
(7*8)+(6*9)+(5*5)+(4*7)+(3*7)+(2*3)+(1*9)=199
199 % 10 = 9
So 89577-39-9 is a valid CAS Registry Number.