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(2S,3S,7R)-3-Bromo-7-(1,3-dioxo-1,3-dihydro-isoindol-2-yl)-3-methyl-8-oxo-5-thia-1-aza-bicyclo[4.2.0]octane-2-carboxylic acid 4-nitro-benzyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

56446-40-3

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56446-40-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 56446-40-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,4,4 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 56446-40:
(7*5)+(6*6)+(5*4)+(4*4)+(3*6)+(2*4)+(1*0)=133
133 % 10 = 3
So 56446-40-3 is a valid CAS Registry Number.

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