217438-75-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 217438-75-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,7,4,3 and 8 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 217438-75:
(8*2)+(7*1)+(6*7)+(5*4)+(4*3)+(3*8)+(2*7)+(1*5)=140
140 % 10 = 0
So 217438-75-0 is a valid CAS Registry Number.