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2ξ-benzoylamino-2ξ,9,9-trimethyl-3-oxo-2,3-dihydro-9H-thiazolo[3,2-a]indole-9ar-carboxylic acid ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

57697-81-1

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57697-81-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 57697-81-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,9 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 57697-81:
(7*5)+(6*7)+(5*6)+(4*9)+(3*7)+(2*8)+(1*1)=181
181 % 10 = 1
So 57697-81-1 is a valid CAS Registry Number.

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