3855-98-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3855-98-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,5 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 3855-98:
(6*3)+(5*8)+(4*5)+(3*5)+(2*9)+(1*8)=119
119 % 10 = 9
So 3855-98-9 is a valid CAS Registry Number.