216883-41-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 216883-41-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,8,8 and 3 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 216883-41:
(8*2)+(7*1)+(6*6)+(5*8)+(4*8)+(3*3)+(2*4)+(1*1)=149
149 % 10 = 9
So 216883-41-9 is a valid CAS Registry Number.