6883-78-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6883-78-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,8,8 and 3 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6883-78:
(6*6)+(5*8)+(4*8)+(3*3)+(2*7)+(1*8)=139
139 % 10 = 9
So 6883-78-9 is a valid CAS Registry Number.