3381-57-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3381-57-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,3,8 and 1 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 3381-57:
(6*3)+(5*3)+(4*8)+(3*1)+(2*5)+(1*7)=85
85 % 10 = 5
So 3381-57-5 is a valid CAS Registry Number.