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17949-21-2

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17949-21-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17949-21-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,9,4 and 9 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 17949-21:
(7*1)+(6*7)+(5*9)+(4*4)+(3*9)+(2*2)+(1*1)=142
142 % 10 = 2
So 17949-21-2 is a valid CAS Registry Number.

17949-21-2Downstream Products

17949-21-2Relevant articles and documents

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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