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30689-89-5

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30689-89-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 30689-89-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,6,8 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 30689-89:
(7*3)+(6*0)+(5*6)+(4*8)+(3*9)+(2*8)+(1*9)=135
135 % 10 = 5
So 30689-89-5 is a valid CAS Registry Number.
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