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(S)-3-Acetoxymethyl-7-methylsulfanyl-7-{[1-(4-nitro-phenyl)-meth-(Z)-ylidene]-amino}-8-oxo-5-thia-1-aza-bicyclo[4.2.0]oct-2-ene-2-carboxylic acid 2,2,2-trichloro-ethyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

40288-90-2

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40288-90-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 40288-90-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,0,2,8 and 8 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 40288-90:
(7*4)+(6*0)+(5*2)+(4*8)+(3*8)+(2*9)+(1*0)=112
112 % 10 = 2
So 40288-90-2 is a valid CAS Registry Number.

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