100958-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100958-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,9,5 and 8 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 100958-21:
(8*1)+(7*0)+(6*0)+(5*9)+(4*5)+(3*8)+(2*2)+(1*1)=102
102 % 10 = 2
So 100958-21-2 is a valid CAS Registry Number.