1221715-48-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1221715-48-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,2,1,7,1 and 5 respectively; the second part has 2 digits, 4 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 1221715-48:
(9*1)+(8*2)+(7*2)+(6*1)+(5*7)+(4*1)+(3*5)+(2*4)+(1*8)=115
115 % 10 = 5
So 1221715-48-5 is a valid CAS Registry Number.