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methyl {[6,7-dichloro-2-ethyl-1-oxo-2-(3-oxobutyl)-2,3-dihydro-1H-inden-5-yl]oxy}-acetate is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81997-17-3

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81997-17-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81997-17-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,9,9 and 7 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81997-17:
(7*8)+(6*1)+(5*9)+(4*9)+(3*7)+(2*1)+(1*7)=173
173 % 10 = 3
So 81997-17-3 is a valid CAS Registry Number.

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