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7-(2-formyl-4,5-dimethoxy-phenyl)-5-triisopropylsilanyloxy-2,3-dihydro-indole-1-carboxylic acid tert-butyl ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

273408-49-4

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273408-49-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 273408-49-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,7,3,4,0 and 8 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 273408-49:
(8*2)+(7*7)+(6*3)+(5*4)+(4*0)+(3*8)+(2*4)+(1*9)=144
144 % 10 = 4
So 273408-49-4 is a valid CAS Registry Number.

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