6933-55-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6933-55-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,9,3 and 3 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 6933-55:
(6*6)+(5*9)+(4*3)+(3*3)+(2*5)+(1*5)=117
117 % 10 = 7
So 6933-55-7 is a valid CAS Registry Number.