4841-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4841-98-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,4 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 4841-98:
(6*4)+(5*8)+(4*4)+(3*1)+(2*9)+(1*8)=109
109 % 10 = 9
So 4841-98-9 is a valid CAS Registry Number.