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L-Aspartic acid, N-[(1,1-dimethylethoxy)carbonyl]-, 4-[(4-nitrophenyl)methyl] ester is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

30925-21-4

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30925-21-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 30925-21-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,0,9,2 and 5 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 30925-21:
(7*3)+(6*0)+(5*9)+(4*2)+(3*5)+(2*2)+(1*1)=94
94 % 10 = 4
So 30925-21-4 is a valid CAS Registry Number.

30925-21-4Relevant academic research and scientific papers

Selective removal of phenacyl ester group with a TBAF·xH2O-thiol system from amino acid derivatives containing benzyl or 4-nitrobenzyl ester

Ueki, Masaaki,Aoki, Hiroko,Katoh, Tsuyoshi

, p. 2783 - 2786 (1993)

A facile cleavage method of phenacyl ester bonds by combined use of tetrabutylammonium fluoride hydrate (TRAF·xH2O) and 1-octanethiol was established. Benzyl and 4-nitrobenzyl esters are almost stable toward this reagent.

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