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5-(4-nitro<1-13C>phenoxy)-1-phenyl-1H-tetrazole is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

81141-93-7

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81141-93-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 81141-93-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,1,4 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 81141-93:
(7*8)+(6*1)+(5*1)+(4*4)+(3*1)+(2*9)+(1*3)=107
107 % 10 = 7
So 81141-93-7 is a valid CAS Registry Number.

81141-93-7Relevant academic research and scientific papers

Synthesis and NMR spectroscopy of stable isotope-labelled phenols and L-tyrosines

Winkel, C.,Aarts, M. W. M. M.,Heide, F. R. van der,Buitenhuis, E. G.,Lugtenburg, J.

, p. 139 - 146 (2007/10/02)

The syntheses of (17O)phenol from (17O)water, (18O)phenol from (18O)water, (1-13C)-phenol and (4-13C)phenol from (2-13C)acetone and (2-13C)phenol and (3-13C)phenol from (1-13C)acetone with high isotopic enrichment are described.The labelled phenols are converted into their corresponding L-tyrosines by the bacterium Erwinia herbicola.A full analysis of the 1H and 13C NMR spectra of phenol and L-tyrosine is reported.

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