73954-61-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 73954-61-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,3,9,5 and 4 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 73954-61:
(7*7)+(6*3)+(5*9)+(4*5)+(3*4)+(2*6)+(1*1)=157
157 % 10 = 7
So 73954-61-7 is a valid CAS Registry Number.