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1.8-Bis--naphthalin is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

17873-53-9

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17873-53-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17873-53-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,7 and 3 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17873-53:
(7*1)+(6*7)+(5*8)+(4*7)+(3*3)+(2*5)+(1*3)=139
139 % 10 = 9
So 17873-53-9 is a valid CAS Registry Number.

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