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1309656-43-6

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1309656-43-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1309656-43-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,9,6,5 and 6 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1309656-43:
(9*1)+(8*3)+(7*0)+(6*9)+(5*6)+(4*5)+(3*6)+(2*4)+(1*3)=166
166 % 10 = 6
So 1309656-43-6 is a valid CAS Registry Number.

1309656-43-6Downstream Products

1309656-43-6Relevant articles and documents

A three-component Mannich-type condensation leading to phosphinic dipeptides-extended transition state analogue inhibitors of aminopeptidases

Dzie?ak, Anna,Pawe?czak, Ma?gorzata,Mucha, Artur

, p. 3141 - 3145 (2011/06/28)

N-Protected α-aminoalkylphosphinic acids bearing a P-H function were found to be novel practical building blocks in three-component condensations with formaldehyde and secondary amines (amino acids). Such Mannich-type N-phosphonomethylation is a common approach for phosphorus acid derived substrates and leads to multifunctional (phosphonic/amino/carboxylic) compounds of diverse relevance. The utility of this reaction was examined for construction, in a single synthetic step, of advanced phosphinic pseudodipeptides designed to act as extended transition state analogue inhibitors of selected aminopeptidases. Phosphinomethylation of primary amino acids was less efficient and yielded mixtures of products which were separated into individual components, and their structures identified.

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