12223-87-9 Usage
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Check Digit Verification of cas no
The CAS Registry Mumber 12223-87-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,2,2,2 and 3 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 12223-87:
(7*1)+(6*2)+(5*2)+(4*2)+(3*3)+(2*8)+(1*7)=69
69 % 10 = 9
So 12223-87-9 is a valid CAS Registry Number.