215919-23-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 215919-23-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,5,9,1 and 9 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 215919-23:
(8*2)+(7*1)+(6*5)+(5*9)+(4*1)+(3*9)+(2*2)+(1*3)=136
136 % 10 = 6
So 215919-23-6 is a valid CAS Registry Number.