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3-deoxypentono-1,4-lactone is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

19473-19-9

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19473-19-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 19473-19-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,7 and 3 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19473-19:
(7*1)+(6*9)+(5*4)+(4*7)+(3*3)+(2*1)+(1*9)=129
129 % 10 = 9
So 19473-19-9 is a valid CAS Registry Number.

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