4377-75-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4377-75-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,3,7 and 7 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 4377-75:
(6*4)+(5*3)+(4*7)+(3*7)+(2*7)+(1*5)=107
107 % 10 = 7
So 4377-75-7 is a valid CAS Registry Number.