4757-47-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4757-47-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,7,5 and 7 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4757-47:
(6*4)+(5*7)+(4*5)+(3*7)+(2*4)+(1*7)=115
115 % 10 = 5
So 4757-47-5 is a valid CAS Registry Number.