732 Results for: "Chiral"

Supplier: AAT BIOQUEST

Lactic acid is chiral and has two optical isomers: L-lactic acid and D-lactic acid.

Supplier: MACHEREY-NAGEL

These columns contain a silica-based protein phase for HPLC enantiomer separation. The base material is NUCLEOSIL® silica, the chiral selector bovine serum albumin (BSA).

Supplier: MP Biomedicals

(+)-Longifolene is a building block for the synthesis of hydroazulenes. It is also used in the preparation of dilongifolylborane, an effective chiral hydroborating agent.

Supplier: AAT BIOQUEST

Lactic acid is chiral and has two optical isomers: L-lactic acid and D-lactic acid.

Supplier: DR MAISCH

HPLC column - ReproSil-Pur Chiral-NR.

Supplier: PerkinElmer

Elite-Cyclosil B columns are ideal for general purpose chiral separations.

Supplier: CHIRAL TECHNOLOGIES

These columns have the same coated chiral selector as found in the normal phase stationary phases, however in comparison, they use a different bounded silica as the base material which stabilises the CSP.

Supplier: DR MAISCH

One of the most versatile chiral column available for normal phase HPLC. Use on compounds with aromatic, amide, carbamate, ester groups, alkyl amines, and compounds with multiple stereogenic sites.

Supplier: MP Biomedicals

DL-Threonine is an essential α - amino acid classified as polar which has two chiral centers. In plants and micro-organisms, threonine is synthesized from aspartic acid via aspartyl - semialdehyde and homoserine.

Supplier: DR MAISCH

USP L40 column: cellulose tris-3,5-dimethylphenylcarbamate coated to porous silica particles.

Supplier: CHIRAL TECHNOLOGIES

Type de colonne: Colonne HPLC, CHIRALPAK® MSA, Acier inoxydable, Ø int.: 4,00 mm, Longueur: 50 mm, Granulométrie: 5 µm

Supplier: DR MAISCH

Colonne USP L51 : amylose tris-3,5-diméthylphénylcarbamate greffée sur particules de silice poreuses.

Supplier: CHIRAL TECHNOLOGIES

CROWNPAK® CR(+) and CR(-) contain a chiral crown ether as a chiral selector, which is coated onto a 5 µm silica support. CROWNPAK® selectors are mainly used to separate chiral amino acids and other small molecules with primary amine groups. The elution order of the enantiomers can be reversed when necessary.

Supplier: CHIRAL TECHNOLOGIES

CHIRALPAK® QN-AX and CHIRALPAK® QD-AX are enantioselective weak anion-exchange (AX) HPLC columns. The chiral selectors for CHIRALPAK® QD-AX and CHIRALPAK® QN-AX anion exchange phases are based on complementary quinine (QN) and quinidine (QD) derivative selectors bonded to high efficiency 5 µm diameter spherical silica. The structure of these selectors is such that a tertiary amine is located in a three-dimensional cleft surrounded by additional hydrogen binding sites and a large aromatic group. This combination provides excellent separations of chiral acids.

Supplier: MACHEREY-NAGEL

These glass plates with a special layer are used for TLC enantiomer separations (e.g. amino acids, thiazolidine derivatives, dipeptides, lactones, α-hydroxycarboxylic acids).

Supplier: AAT BIOQUEST

Lactic acid is chiral and has two optical isomers: L-lactic acid and D-lactic acid.

Supplier: CHIRAL TECHNOLOGIES

Type de colonne: Colonne HPLC, CHIRALPAK® PSA, Acier inoxydable, Ø int.: 4,00 mm, Longueur: 50 mm, Granulométrie: 5 µm

Supplier: CHIRAL TECHNOLOGIES

Type de colonne: Colonne HPLC, CHIRALPAK® BSA, Acier inoxydable, Ø int.: 2,10 mm, Longueur: 50 mm, Granulométrie: 5 µm

Supplier: CHIRAL TECHNOLOGIES

Type de colonne: Colonne HPLC, CHIRALPAK® RSA, Acier inoxydable, Ø int.: 4,00 mm, Longueur: 50 mm, Granulométrie: 5 µm

Supplier: CHIRAL TECHNOLOGIES

Type de colonne: Colonne HPLC, CHIRALPAK® DSA, Acier inoxydable, Ø int.: 2,10 mm, Longueur: 50 mm, Granulométrie: 5 µm

Supplier: CHIRAL TECHNOLOGIES

The HPLC analytical guard cartridges need to be mounted in a cartridge holder to be connected to the analytical column. For maximum lifetime, analytical columns should be used in series with an appropriate guard cartridge or column. Both formats are available with the packing material to match the protected column.

Supplier: CHIRAL TECHNOLOGIES

These columns are packed with Daicel’s coated polysaccharide-based chiral stationary phases (CSPs) which are manufactured by physically coating the polysaccharide derivatives onto silica matrices. Due to this manufacturing process, a choice of mobile phase components is typically narrower than with immobilised columns in order to minimise damage to the CSPs.

Supplier: CHIRAL TECHNOLOGIES

Pour la séparation de composés chiraux acides contenant des groupes d'acides carboxyliques, phosphoniques, phosphiniques, phosphoriques ou sulphoniques. Dans certains cas, des composés acides comme les phénols peuvent être séparés.

Supplier: HICHROM

Whelk-0®1 is the most widely applicable chiral phase, due to the incorporation of both p-acceptor and p-donor characteristics.

Supplier: MP Biomedicals

D-Limonene is a chiral intermediate for natural product synthesis. It is used as a renewably based solvent in cleaning products.

Supplier: ProSci Inc.

Deoxycytidine Kinase (DCK) is a member of the DCK/DGK family. DCK exists as a homodimer and is localised to the nucleus. DCK is required for the phosphorylation of the deoxyribonucleosides deoxycytidine (dC), deoxyguanosine (dG), and deoxyadenosine (dA). DCK has broad substrate specificity, and does not display selectivity based on the chirality of the substrate. In addition, DCK is also an essential enzyme for the phosphorylation of numerous nucleoside analogs widely employed as antiviral and chemotherapeutic agents. DCK is clinically important because of its relationship to drug resistance and sensitivity.

Supplier: PerkinElmer

Elite-Betacydex columns are ideal for chiral separations.

Supplier: CHIRAL TECHNOLOGIES

CHIRALPAK®, Ø int.: 4 mm, Longueur: 10 mm, Granulométrie: 5 µm

Supplier: MP Biomedicals

Glycine is a non-essential amino acid. Acts as an inhibitory neurotransmitter, particularly in brain stem and medulla. Shown to block NMDA-stimulated dopamine release in fetal mesencephalic cell cultures. Also reported to increase NMDA-receptor mediated synaptic potential in cortical neurons. It does not have a chiral center, so only amino acid with no asymmetric carbon. Therefore, it does not have a D- or L- isomer designation. This material is synthetic. It is the smallest of the 20 natural amino acids.

Supplier: CHIRAL TECHNOLOGIES

These columns are packed with Daicel’s coated polysaccharide-based chiral stationary phases (CSPs) which are manufactured by physically coating the polysaccharide derivatives onto silica matrices. Due to this manufacturing process, a choice of mobile phase components is typically narrower than with immobilised columns in order to minimise damage to the CSPs.