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166538-23-4

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166538-23-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 166538-23-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,5,3 and 8 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 166538-23:
(8*1)+(7*6)+(6*6)+(5*5)+(4*3)+(3*8)+(2*2)+(1*3)=154
154 % 10 = 4
So 166538-23-4 is a valid CAS Registry Number.

166538-23-4Downstream Products

166538-23-4Relevant articles and documents

Substituent effect on acidity of substituted 2-(4-nitrobenzoylamino)alkanamidesin methanol-dimethyl sulfoxide mixtures

Mitas, Petr,Sedlak, Milos,Kavalek, Jaromir

, p. 85 - 93 (2007/10/03)

The dissociation constants of substituted 2-(4-nitrobenzoylamino)alkanamides, N-[2-(4-nitrobenzoylamino)aikanoyl]pyrrolidines, and N-alkyl-4-nitrobenzamides have been measured spectrophotometrically in 60 and 80% v/v DMSO. The pKA values of these N-acids are discussed from the point of view of substituents at the acetamide a-carbon atom.

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