213548-19-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 213548-19-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,3,5,4 and 8 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 213548-19:
(8*2)+(7*1)+(6*3)+(5*5)+(4*4)+(3*8)+(2*1)+(1*9)=117
117 % 10 = 7
So 213548-19-7 is a valid CAS Registry Number.