101583-21-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101583-21-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,5,8 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 101583-21:
(8*1)+(7*0)+(6*1)+(5*5)+(4*8)+(3*3)+(2*2)+(1*1)=85
85 % 10 = 5
So 101583-21-5 is a valid CAS Registry Number.