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89705-53-3

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89705-53-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 89705-53-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,9,7,0 and 5 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 89705-53:
(7*8)+(6*9)+(5*7)+(4*0)+(3*5)+(2*5)+(1*3)=173
173 % 10 = 3
So 89705-53-3 is a valid CAS Registry Number.

89705-53-3Downstream Products

89705-53-3Relevant articles and documents

1H-NMR SPECTROSCOPIC EVIDENCE ON CHIRAL DISCRIMINATION OF dl-PIRPROFEN BY β-CYCLODEXTRIN COMPLEXATION

Uekama, Kaneto,Imai, Teruko,Hirayama, Fumitoshi,Otagiri, Masaki,Hibi, Toru,Yamasaki, Masaki

, p. 61 - 64 (1985)

The chiral discrimination of β-cyclodextrin ((β-CyD) was demonstrated by measuring 270 MHz 1H-NMR spectra, using dl-pirprofen (PF) as a guest molecule.Upon binding to β-CyD, the induced 1H-chemical shifts of PF, particularly in the phenylpropionic acid portion, were significantly different between the d- and l-isomers, while no enantiomeric difference was observed in the abscence of β-CyD.

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