115 Results for: "derivatisation reagent"

Supplier: Merck

D-FDVA may be used as derivatizing agent for nullifying the possibility of minor compounds to be diastereomer of xenortide A, during HPLC-MS screening.

Supplier: Merck

Suitable for the derivatization of a-ketoacids, amines, amino acids, cycloserine, histamine and metabolites, phenylethylamines, phosphatidylserines and tryptamines.

Supplier: Merck

Hexamethyldisilazane/chlorotrimethylsilane/pyridine = 2:1:10 (v/v/v), useful silylating mixture for the silylation of hydroxy-compounds.

Supplier: Thermo Fisher Scientific

N-Methyl-N-(trimethylsilyl)trifluoroacetamide with 1% trimethylchlorosilane for GC derivatisation

Supplier: Merck

Pentafluorobenzyl bromide ≥98.5% (by GC), LiChropur™ for GC derivatisation, Supelco®

Supplier: Merck

Chiral derivatizing agent for alcohols; some methyl substituted primary alcohols which are difficult to separate otherwise, can also be separated.

Supplier: Merck

(R)-(-)-a-Methoxy-a-(trifluoromethyl)phenylacetyl chloride (Mosher’s acid chloride) is generally used as a chiral derivatizing agent.

Supplier: Merck

Nα-(2,4-Dinitro-5-fluorophenyl)-L-valinamide [L-FDVA] is a derivatizing chiral agent.

Supplier: Merck

(R)-(-)-a-Methoxy-a-(trifluoromethyl)phenylacetyl chloride (Mosher’s acid chloride) is generally used as a chiral derivatizing agent.

Supplier: Merck

Hexafluoroisopropanol (HFP) is generally used to denature the native state of proteins, and it also stabilizes the a-helical conformation in unfolded peptides and proteins like ß-lactoglobulin and melittin

Supplier: Merck

N-methyl-N-trimethylsilylheptafluorobutyramide (MSHFBA) has been used in the silylation reaction during GC analysis of samples containing 1-monoolein, 2-monoolein, 1,2-diolein, 1,3-diolein, ethyl oleate, oleic acid and triolein.

Supplier: Merck

Methanolic HCl (hydrogen chloride in methanol) is particularly useful for preparing methyl esters of volatile (short chain) fatty acids. Fatty acids are esterified by heating them with an anhydrous alcohol in the presence of an acidic catalyst in a sealed vessel at a high temperature for a short time. In the reaction, a fatty acid molecule and an alcohol molecule are joined, with the release of a water molecule. The derivatives can be quickly and easily recovered, quantitatively, from the reaction medium.

Supplier: Merck

Nα-(2,4-Dinitro-5-fluorophenyl)-L-alaninamide (FDAA) is a chiral derivatizing agent (CDA), has high enantioselectivity but low sensitivity as compared to other CDAs. It is generally used to assign the stereochemistry of amino acids in trace amounts.

Supplier: SIGMA ALDRICH MICROSCOPY

4,5-Methylenedioxy-1,2-phenylenediamine dihydrochloride is a fluorescence tag for α keto acids. It is also required for the derivatisation of sialic acids in presence of dilute sulfuric acid. The method allows determination of sialic acids.

Supplier: Merck

Sylon CT™ was used as derivatizing agent, during an experiment to develop sensitive GC method for the identification and determination of long-chain primary alkyl amines.† It was also used for treating Erlenmeyer flasks to prevent mycelium from sticking to the glassware during development of techniques in the identification and partial characterization the chaxamycin biosynthesis gene cluster of S. leeuwenhoekii.

Supplier: Thermo Fisher Scientific

N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA) 98%

Supplier: Thermo Fisher Scientific

N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA) ≥97%

Supplier: Thermo Fisher Scientific

N-(tert-Butyldimethylsilyl)-N-methyltrifluoroacetamide (MTBSTFA)

Supplier: Thermo Fisher Scientific

Marfey's Reagent (FDAA or 1-fluoro-2-4-dinitrophenyl-5-L-alanine amide) reacts with primary amines to enable the quick and easy separation and quantitation of optical isomers of amino acids by reverse-phase chromatography.

Supplier: AAT BIOQUEST

Ethylenediaminetetraacetic acid (EDTA) might be the most popular metal ion chelator used for both industrial and medical purposes.

Supplier: SIGMA ALDRICH MICROSCOPY

Fluorescein isothiocyanate (FITC) is yellow-orange in color with an absorption maximum at 495nm. Upon excitation, it emits a yellow-green color with an emission maximum at 525 nm. It is widely used to attach a fluorescent label to proteins via the amine group. The isothiocyanate group reacts with amino terminal and primary amines in proteins. It has been used for the labeling of proteins including antibodies and lectins. Fluorescein isothiocyanate isomer I has been proposed as a contact sensitiser.

Supplier: Thermo Fisher Scientific

Pierce™ Iodination beads are Ø 3 mm polystyrene beads that are coated with an oxidising reagent, which provides efficient activation of ¹²⁵I for protein or peptide iodination procedures.

Supplier: Thermo Fisher Scientific

These desalting columns are ready-to-use, disposable, gel filtration columns for separating proteins and other macromolecules from low molecular weight buffer salts and reagents.

Supplier: Thermo Fisher Scientific

The Hydrophilic Interaction Liquid Chromatography (HILIC) technique offers complementary selectivity to reversed phase. With the ability to retain highly polar and hydrophilic compounds, these columns have been developed to aid the analysis of compounds that are traditionally difficult to retain using conventional C18 columns.

Supplier: CAMAG

VisionCATS is built for simplicity and intuitive operation, streamlining the entire HPTLC workflow by controlling both HPTLC PRO Modules and HPTLC instruments while efficiently managing data.