7500-68-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7500-68-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,5,0 and 0 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 7500-68:
(6*7)+(5*5)+(4*0)+(3*0)+(2*6)+(1*8)=87
87 % 10 = 7
So 7500-68-7 is a valid CAS Registry Number.