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5-[1-(2,4-dinitro-phenylhydrazono)-ethyl]-2-hydroxy-benzoic acid methyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

16475-91-5

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16475-91-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 16475-91-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,4,7 and 5 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 16475-91:
(7*1)+(6*6)+(5*4)+(4*7)+(3*5)+(2*9)+(1*1)=125
125 % 10 = 5
So 16475-91-5 is a valid CAS Registry Number.

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