300553-61-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 300553-61-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,0,5,5 and 3 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 300553-61:
(8*3)+(7*0)+(6*0)+(5*5)+(4*5)+(3*3)+(2*6)+(1*1)=91
91 % 10 = 1
So 300553-61-1 is a valid CAS Registry Number.