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4-(3,4-dichloro-2,5-dioxo-2,5-dihydro-pyrrol-1-yl)-benzoic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

65833-17-2

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65833-17-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 65833-17-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,5,8,3 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 65833-17:
(7*6)+(6*5)+(5*8)+(4*3)+(3*3)+(2*1)+(1*7)=142
142 % 10 = 2
So 65833-17-2 is a valid CAS Registry Number.

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