877804-65-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 877804-65-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,7,8,0 and 4 respectively; the second part has 2 digits, 6 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 877804-65:
(8*8)+(7*7)+(6*7)+(5*8)+(4*0)+(3*4)+(2*6)+(1*5)=224
224 % 10 = 4
So 877804-65-4 is a valid CAS Registry Number.