883969-21-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 883969-21-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,8,3,9,6 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 883969-21:
(8*8)+(7*8)+(6*3)+(5*9)+(4*6)+(3*9)+(2*2)+(1*1)=239
239 % 10 = 9
So 883969-21-9 is a valid CAS Registry Number.