Biomaterial Database

Separation of enantiomers of N-acetylcysteine by capillary electrophoresis after derivatization by o-phthaldialdehyde. 1994

C Dette, and H Wätzig

Institute of Pharmacy and Food Chemistry, University of Würzburg, Germany.

The optical purity of N-acetyl-L-cysteine was tested by capillary electrophoresis. The D-enantiomer can be found down to a ratio of 0.4:99.6 within 4 min without the use of the D-form or the racemate as a standard. The efficiency was optimized during method development up to a theoretical plate number, N, of several hundred thousand. The migration order and the separation mechanism was explained. The assumed structure of the formed isoindole S-[2-(1-carboxy-2-methylpropyl)isoindole-1-yl]-N-acetylcysteine diastereomers was confirmed and its stability was examined.

UI	MeSH Term	Description	Entries
D007210	Indoleacetic Acids	Acetic acid derivatives of the heterocyclic compound indole. (Merck Index, 11th ed)	Auxin,Auxins,Indolylacetic Acids,Acids, Indoleacetic,Acids, Indolylacetic
D009764	o-Phthalaldehyde	A reagent that forms fluorescent conjugation products with primary amines. It is used for the detection of many biogenic amines, peptides, and proteins in nanogram quantities in body fluids.	ortho-Phthalaldehyde,Orthophthaldialdehyde,o-Phthaldialdehyde,ortho-Phthalic Aldehyde,Aldehyde, ortho-Phthalic,o Phthalaldehyde,o Phthaldialdehyde,ortho Phthalaldehyde,ortho Phthalic Aldehyde
D004586	Electrophoresis	An electrochemical process in which macromolecules or colloidal particles with a net electric charge migrate in a solution under the influence of an electric current.	Electrophoreses
D000111	Acetylcysteine	The N-acetyl derivative of CYSTEINE. It is used as a mucolytic agent to reduce the viscosity of mucous secretions. It has also been shown to have antiviral effects in patients with HIV due to inhibition of viral stimulation by reactive oxygen intermediates.	Mercapturic Acid,Acemuc,Acetabs,Acetylcystein AL,Acetylcystein Atid,Acetylcystein Heumann,Acetylcystein Trom,Acetylcysteine Hydrochloride,Acetylcysteine Sodium,Acetylcysteine Zinc,Acetylcysteine, (D)-Isomer,Acetylcysteine, (DL)-Isomer,Acetylcysteine, Monoammonium Salt,Acetylcysteine, Monosodium Salt,Acetylin,Acetyst,Acétylcystéine GNR,Airbron,Alveolex,Azubronchin,Bisolvon NAC,Bromuc,Broncho-Fips,Broncholysin,Broncoclar,Codotussyl,Cystamucil,Dampo Mucopect,Eurespiran,Exomuc,Fabrol,Fluimucil,Fluprowit,Frekatuss,Genac,Hoestil,Ilube,Jenacystein,Jenapharm,Lantamed,Larylin NAC,Lindocetyl,M-Pectil,Muciteran,Muco Sanigen,Mucomyst,Mucosil,Mucosol,Mucosolvin,N-Acetyl-L-cysteine,N-Acetylcysteine,NAC AL,NAC Zambon,Optipect Hustengetränk,Siccoral,Siran,Solmucol,acebraus,durabronchal,mentopin Acetylcystein,Acetylcystein, mentopin,Acid, Mercapturic,Broncho Fips,BronchoFips,Hustengetränk, Optipect,Hydrochloride, Acetylcysteine,M Pectil,MPectil,Monoammonium Salt Acetylcysteine,Monosodium Salt Acetylcysteine,Mucopect, Dampo,N Acetyl L cysteine,N Acetylcysteine,NAC, Bisolvon,Sanigen, Muco,Sodium, Acetylcysteine,Zambon, NAC,Zinc, Acetylcysteine
D013237	Stereoisomerism	The phenomenon whereby compounds whose molecules have the same number and kind of atoms and the same atomic arrangement, but differ in their spatial relationships. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 5th ed)	Molecular Stereochemistry,Stereoisomers,Stereochemistry, Molecular,Stereoisomer
D015394	Molecular Structure	The location of the atoms, groups or ions relative to one another in a molecule, as well as the number, type and location of covalent bonds.	Structure, Molecular,Molecular Structures,Structures, Molecular
D054833	Isoindoles	Benzopyrroles with the nitrogen at the number two carbon, in contrast to INDOLES which have the nitrogen adjacent to the six-membered ring.	Isoindole