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2'-O-(tert-Butyldimethylsilyl)-6α-hydroxy 7-epi-Paclitaxel is one of Paclitaxel impurities. Paclitaxel is a tetracyclic diterpenoid isolated originally from the Pacific yew tree Taxus brevifolia. It is a mitotic inhibitor used in cancer chemotherapy. It has a role as a microtubule-stabilising agent, a metabolite, a human metabolite and an antineoplastic agent. Uses: 6α-hydroxypaclitaxel derivative. Synonyms: (3xi, 5beta, 6alpha, 7alpha, 10beta, 13alpha)-4, 10-Bis(acetyloxy)-13-{[(2R, 3S)-3-benzamido-2-{[tert-butyl(dimethyl)silyl]oxy}-3-phenylpropanoyl]oxy}-1, 6, 7-trihydroxy-9-oxo-5, 20-epoxytax-11-en-2-yl benzoate; 2-tert-Pentylcyclopentanon; 2-(1,1-dimethyl-propyl)-cyclopentan-1-one; 2'-NOR THIAMINE; 2-t-Amyl-cyclopentanon; (2aR, 3S, 4S, 4aS, 6S, 9S, 11S, 12S, 12aR, 12bS)-9-(((2R, 3S)-3-benzamido-2-((tert-butyldimethylsilyl)oxy)-3-phenylpropanoyl)oxy)-12-(benzoyloxy)-3, 4, 11-trihydroxy-4a, 8, 13, 13-tetramethyl-5-oxo-2a, 3, 4, 4a, 5, 6, 9, 10, 11, 12, 12a, 12b-d3, 4]benzo[1, 2-b]oxete-6, 12b-diyl diacetate. Grades: > 98%. CAS No. 165065-08-7. Molecular formula: C53H65NO15Si. Mole weight: 984.16.
Native Baker's yeast (S. cerevisiae) Pyruvate Decarboxylase
Pyruvate decarboxylase (PDC) is a homotetrameric enzyme that catalyses the decarboxylation of pyruvic acid to acetaldehyde and carbon dioxide in the cytoplasm. Pyruvate decarboxylase depends on cofactors thiamine pyrophosphate (TPP) and magnesium. PDC contains a β-α-β structure, yielding parallel β-sheets. Applications: Pyruvate decarboxylase (pdc) is used to study residues involved in thiamine pyrophosphate (tpp) binding. it is used to study the regulation of fermentation pathways in plant species. Group: Enzymes. Synonyms: Pyruvate decarboxylase; EC 4.1.1.1; α-carboxylase (ambiguous); pyruvic decarboxylase; α-ketoacid carboxylase; 2-oxo-acid carboxy-lyase; 9001-04-1; 2-Oxo-acid carboxy-lyase; PDC. Enzyme Commission Number: EC 4.1.1.1. CAS No. 9001-4-1. PDC. Activity: 5.0-20.0 units/mg protein (biuret). Storage: 2-8°C. Form: ammonium sulfate suspension; Suspension in 3.2 M (NH4)2SO4 pH 6.5, stabilized with 5% glycerol, 5 mM potassium phosphate, 1 mM magnesium acetate, 0.5 mM EDTA, and 25 μM c ocarboxylase. Source: Baker's yeast (S. cerevisiae). Pyruvate decarboxylase; EC 4.1.1.1; α-carboxylase (ambiguous); pyruvic decarboxylase; α-ketoacid carboxylase; 2-oxo-acid carboxy-lyase; 9001-04-1; 2-Oxo-acid carboxy-lyase; PDC. Cat No: NATE-0510.
Thiamine Impurity G HCl
An impurity of Thiamine which is a coenzyme used by the body to metabolize food for energy and to maintain proper heart and nerve function. Synonyms: Thiamine Acetate Hydrochloride; 1037-29-2; 2-[3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium-5-yl]ethyl acetate; chloride; hydrochloride; Acetylaneurine HCl; Thiamine Acetate Ester Monohydrochloride; Thiamine EP Impurity G; DTXSID30858470; FT-0675144; J-001024; 5-(2-Acetoxyethyl)-3-((4-amino-2-methylpyrimidin-5-yl)methyl)-4-methylthiazol-3-ium chloride hydrochloride; 5-[2-(Acetyloxy)ethyl]-3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium Chloride Hydrochloride (Acetylthiamine Hydrochloride); 5-[2-(Acetyloxy)ethyl]-3-[(4-amino-2-methylpyrimidin-5-yl)methyl]-4-methyl-1,3-thiazol-3-ium chloride--hydrogen chloride (1/1/1). Grades: > 95%. CAS No. 1037-29-2. Molecular formula: C14H19N4O2S.Cl.HCl. Mole weight: 379.31.
Thiamine Impurity H
An impurity of Thiamine which is one of the first compounds recognized as a vitamin. Synonyms: 3-((((4-amino-2-methylpyrimidin-5-yl)methyl)carbamothioyl)thio)-4-oxopentyl acetate; QH3NPS1GNI; 1-[2-(acetoxy)ethyl]-2-oxopropyl [(4-amino-2-methyl-5-pyrimidinyl)methyl]dithiocarbamate; 1-(2-(Acetoxy)ethyl)-2-oxopropyl ((4-amino-2-methyl-5-pyrimidinyl)methyl)dithiocarbamate; (3RS)-3-((((4-Amino-2-methylpyrimidin-5-yl)methyl)thiocarbamoyl)sulfanyl)-4-oxopentyl acetate; (3RS)-3-[[[(4-AMINO-2-METHYLPYRIMIDIN-5-YL)METHYL]THIOCARBAMOYL]SULFANYL]-4-OXOPENTYL ACETATE (KETODITHIOCARBAMATE); CARBAMODITHIOIC ACID, ((4-AMINO-2-METHYL-5-PYRIMIDINYL)METHYL)-, 1-(2-(ACETYLOXY)ETHYL)-2-OXOPROPYL ESTER; Carbamodithioic acid, [(4-amino-2-methyl-5-pyrimidinyl)methyl]-, 1-[2-(acetyloxy)ethyl]-2-oxopropyl ester. Grades: > 95%. CAS No. 89285-03-0. Molecular formula: C14H20N4O3S2. Mole weight: 356.47.
2-hydroxy-3-oxoadipate synthase
The bacterial enzyme requires thiamine diphosphate. The product decarboxylates to 5-hydroxy-4-oxopentanoate. The enzyme can decarboxylate 2-oxoglutarate. Acetaldehyde can replace glyoxylate. Group: Enzymes. Synonyms: 2-hydroxy-3-oxoadipate glyoxylate-lyase (carboxylating); α-ketoglutaric-glyoxylic carboligase; oxoglutarate: glyoxylate carboligase. Enzyme Commission Number: EC 2.2.1.5. CAS No. 9054-72-2. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2032; 2-hydroxy-3-oxoadipate synthase; EC 2.2.1.5; 9054-72-2; 2-hydroxy-3-oxoadipate glyoxylate-lyase (carboxylating); α-ketoglutaric-glyoxylic carboligase; oxoglutarate: glyoxylate carboligase. Cat No: EXWM-2032.
3-acetyloctanal synthase
Requires thiamine diphosphate. The enzyme, characterized from the bacterium Serratia marcescens, participates in the biosynthesis of the antibiotic prodigiosin. The enzyme decarboxylates pyruvate, followed by attack of the resulting two-carbon fragment on (E)-oct-2-enal, resulting in a Stetter reaction. In vitro the enzyme can act on a number of α,β-unsaturated carbonyl compounds, including aldehydes and ketones, and can catalyse both 1-2 and 1-4 carboligations depending on the substrate. Group: Enzymes. Synonyms: pigD (gene name). Enzyme Commission Number: EC 2.2.1.12. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2028; 3-acetyloctanal synthase; EC 2.2.1.12; pigD (gene name). Cat No: EXWM-2028.
acetoin dehydrogenase
Requires thiamine diphosphate. This enzyme, which belongs to the family of 2-oxo acid dehydrogenase complexes, catalyses the oxidative-hydrolytic cleavage of acetoin to acetaldehyde and acetyl-CoA in many bacterial strains, both aerobic and anaerobic. The enzyme is composed of multiple copies of three enzymic components: acetoin oxidoreductase (E1), dihydrolipoamide acetyltransferase (E2) and dihydrolipoyl dehydrogenase (E3). Group: Enzymes. Synonyms: acetoin dehydrogenase complex; acetoin dehydrogenase enzyme system; AoDH ES. Enzyme Commission Number: EC 2.3.1.190. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2133; acetoin dehydrogenase; EC 2.3.1.190; acetoin dehydrogenase complex; acetoin dehydrogenase enzyme system; AoDH ES. Cat No: EXWM-2133.
acetoin-ribose-5-phosphate transaldolase
A thiamine-diphosphate protein. Group: Enzymes. Synonyms: 1-deoxy-D-altro-heptulose-7-phosphate synthetase; 1-deoxy-D-altro-heptulose-7-phosphate synthase; 3-hydroxybutan-2-one:D-ribose-5-phosphate aldehydetransferase [wrong substrate name]. Enzyme Commission Number: EC 2.2.1.4. CAS No. 87843-76-3. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2031; acetoin-ribose-5-phosphate transaldolase; EC 2.2.1.4; 87843-76-3; 1-deoxy-D-altro-heptulose-7-phosphate synthetase; 1-deoxy-D-altro-heptulose-7-phosphate synthase; 3-hydroxybutan-2-one:D-ribose-5-phosphate aldehydetransferase [wrong substrate name]. Cat No: EXWM-2031.
acetolactate synthase
This enzyme requires thiamine diphosphate. The reaction shown is in the pathway of biosynthesis of valine; the enzyme can also transfer the acetaldehyde from pyruvate to 2-oxobutanoate, forming 2-ethyl-2-hydroxy-3-oxobutanoate, also known as 2-aceto-2-hydroxybutanoate, a reaction in the biosynthesis of isoleucine. Group: Enzymes. Synonyms: α-acetohydroxy acid synthetase; α-acetohydroxyacid synthase; α-acetolactate synthase; α-acetolactate synthetase; acetohydroxy acid synthetase; acetohydroxyacid synthase; acetolactate pyruvate-lyase (carboxylating); acetolactic synthetase. Enzyme Commission Number: EC 2.2.1.6. CAS No. 9027-45-6. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-2033; acetolactate synthase; EC 2.2.1.6; 9027-45-6; α-acetohydroxy acid synthetase; α-acetohydroxyacid synthase; α-acetolactate synthase; α-acetolactate synthetase; acetohydroxy acid synthetase; acetohydroxyacid synthase; acetolactate pyruvate-lyase (carboxylating); acetolactic synthetase. Cat No: EXWM-2033.
Desmopressin Acetate EP
synthetic S-acyl derivative of thiamine (vitamin B1), antioxidant, dietary supplement, for diabetic retinopathy, neuropathy, and nephropathy. Grades: EP. CAS No. 16789-98-3. Product ID: 8-04773. Molecular formula: C50H72N14O16S2. Mole weight: 1189.33. Properties: [α]/D +11.0 ± 2.0°, c = 1 CHCl3.
Native Microorganism Pyruvate oxidase
In enzymology, a pyruvate oxidase (EC 1.2.3.3) is an enzyme that catalyzes the chemical reaction: pyruvate + phosphate + O2 <-> acetyl phosphate + CO2 + H2O2. The 3 substrates of this enzyme are pyruvate, phosphate, and O2, whereas its 3 products are acetyl phosphate, CO2, and H2O2. This enzyme belongs to the family of oxidoreductases, specifically those acting on the aldehyde or oxo group of donor with oxygen as acceptor. This enzyme participates in pyruvate metabolism. It has 2 cofactors: FAD, and Thiamin diphosphate. Applications: This enzyme is useful for enzymatic determination of pyruvate, got, gpt in clinical analysis. Group: Enzymes. Synonyms: EC 1.2.3.3; pyruvate: oxygen 2-oxidoreductase (phosphorylating); pyruvic oxidase; phosphate-dependent pyruvate oxidase. Enzyme Commission Number: EC 1.2.3.3. CAS No. 9001-96-1. Pyruvate oxidase. Mole weight: approx. 260 kDa. Activity: Grade? 1.5U/mg-solid or more. Stability: Stable at-20°C for at least one year. Appearance: Yellowish amorphous powder, lyophilized. Source: Microorganism. EC 1.2.3.3; pyruvate: oxygen 2-oxidoreductase (phosphorylating); pyruvic oxidase; phosphate-dependent pyruvate oxidase. Cat No: DIA-215.
Native Pyruvate decarboxylase from Thermophillic bacteria
Pyruvate decarboxylase (PDC) is a homotetrameric enzyme that catalyses the decarboxylation of pyruvic acid to acetaldehyde and carbon dioxide in the cytoplasm. Pyruvate decarboxylase depends on cofactors thiamine pyrophosphate (TPP) and magnesium. PDC contains a β-α-β structure, yielding parallel β-sheets. Applications: C-c bond formation: ligation of two aldehyde molecules enantioselectively to 2-hydroxy ketones; preparation of (r)-phenylacetylcarbinol (pac). Group: Enzymes. Synonyms: Pyruvate decarboxylase; EC 4.1.1.1; α-carboxylase (ambiguous); pyruvic decarboxylase; α-ketoacid carboxylase; 2-oxo-acid carboxy-lyase; 9001-04-1; 2-Oxo-acid carboxy-lyase; PDC. Enzyme Commission Number: EC 4.1.1.1. CAS No. 9001-4-1. PDC. Storage: Store at -20°C. Form: Frozen Liquid. Source: Thermophillic bacteria. Pyruvate decarboxylase; EC 4.1.1.1; α-carboxylase (ambiguous); pyruvic decarboxylase; α-ketoacid carboxylase; 2-oxo-acid carboxy-lyase; 9001-04-1; 2-Oxo-acid carboxy-lyase; PDC. Cat No: NATE-1159.
phosphoketolase
A thiamine-diphosphate protein. Group: Enzymes. Synonyms: D-xylulose-5-phosphate D-glyceraldehyde-3-phosphate-lyase (phosphate-acetylating). Enzyme Commission Number: EC 4.1.2.9. CAS No. 9031-75-8. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-4897; phosphoketolase; EC 4.1.2.9; 9031-75-8; D-xylulose-5-phosphate D-glyceraldehyde-3-phosphate-lyase (phosphate-acetylating). Cat No: EXWM-4897.
pyruvate dehydrogenase (acetyl-transferring)
Contains thiamine diphosphate. It is a component (in multiple copies) of the multienzyme pyruvate dehydrogenase complex in which it is bound to a core of molecules of EC 2.3.1.12, dihydrolipoyllysine-residue acetyltransferase, which also binds multiple copies of EC 1.8.1.4, dihydrolipoyl dehydrogenase. It does not act on free lipoamide or lipoyllysine, but only on the lipoyllysine residue in EC 2.3.1.12. Group: Enzymes. Synonyms: MtPDC (mitochondrial pyruvate dehydrogenase complex); pyruvate decarboxylase; pyruvate dehydrogenase; pyruvate dehydrogenase (lipoamide); pyruvate dehydrogenase complex; pyruvate:lipoamide 2-oxidoreductase (decarboxylating and acceptor-acetylating); pyruvic acid dehydrogenase; pyruvic dehydrogenase. Enzyme Commission Number: EC 1.2.4.1. CAS No. 9014-20-4. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1217; pyruvate dehydrogenase (acetyl-transferring); EC 1.2.4.1; 9014-20-4; MtPDC (mitochondrial pyruvate dehydrogenase complex); pyruvate decarboxylase; pyruvate dehydrogenase; pyruvate dehydrogenase (lipoamide); pyruvate dehydrogenase complex; pyruvate:lipoamide 2-oxidoreductase (decarboxylating and acceptor-acetylating); pyruvic acid dehydrogenase; pyruvic dehydrogenase. Cat No: EXWM-1217.
pyruvate dehydrogenase (quinone)
Flavoprotein (FAD). This bacterial enzyme is located on the inner surface of the cytoplasmic membrane and coupled to the respiratory chain via ubiquinone. Does not accept menaquinone. Activity is greatly enhanced by lipids. Requires thiamine diphosphate. The enzyme can also form acetoin. Group: Enzymes. Synonyms: pyruvate dehydrogenase; pyruvic dehydrogenase; pyruvic (cytochrome b1) dehydrogenase; pyruvate:ubiquinone-8-oxidoreductase; pyruvate oxidase (ambiguous); pyruvate dehydrogenase (cytochrome) (incorrect). Enzyme Commission Number: EC 1.2.5.1. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1220; pyruvate dehydrogenase (quinone); EC 1.2.5.1; pyruvate dehydrogenase; pyruvic dehydrogenase; pyruvic (cytochrome b1) dehydrogenase; pyruvate:ubiquinone-8-oxidoreductase; pyruvate oxidase (ambiguous); pyruvate dehydrogenase (cytochrome) (incorrect). Cat No: EXWM-1220.
pyruvate oxidase
A flavoprotein (FAD) requiring thiamine diphosphate. Two reducing equivalents are transferred from the resonant carbanion/enamine forms of 2-hydroxyethyl-thiamine-diphosphate to the adjacent flavin cofactor, yielding 2-acetyl-thiamine diphosphate (AcThDP) and reduced flavin. FADH2 is reoxidized by O2 to yield H2O2 and FAD and AcThDP is cleaved phosphorolytically to acetyl phosphate and thiamine diphosphate. Group: Enzymes. Synonyms: pyruvic oxidase; phosphate-dependent pyruvate oxidase. Enzyme Commission Number: EC 1.2.3.3. CAS No. 9001-96-1. Pyruvate oxidase. Storage: Store it at +4 ?C for short term. For long term storage, store it at -20 ?C?-80 ?C. Form: Liquid or lyophilized powder. EXWM-1210; pyruvate oxidase; EC 1.2.3.3; 9001-96-1; pyruvic oxidase; phosphate-dependent pyruvate oxidase. Cat No: EXWM-1210.
Pyruvate Oxidase, Microorganisms
Pyruvate Oxidase, Microorganisms (PoxB) is a thiamine pyrophosphate-dependent oxidase that catalyzes the oxidative decarboxylation of pyruvate to acetyl phosphate, carbon dioxide and water. Pyruvate oxidase is an important enzyme in bacterial metabolism and is often used in biochemical research [1]. Uses: Scientific research. Group: Signaling pathways. Alternative Names: PoxB. CAS No. 9001-96-1. Pack Sizes: 100 U. Product ID: HY-P2891.
Thiamine Impurity C HCl
An impurity of Thiamine which is one of the first compounds recognized as a vitamin. Synonyms: Beclotiamine hydrochloride; 7275-24-3; ThiaMine IMpurity C; 5-Chloroethylthiamine hydrochloride; 5-[[5-(2-chloroethyl)-4-methyl-1,3-thiazol-3-ium-3-yl]methyl]-2-methylpyrimidin-4-amine; chloride; hydrochloride; 5-Chloroethylthiamine hydrochloride 100 microg/mL in Acetonitrile:Methanol; 3-[(4-Amino-2-methylpyrimidin-5-yl)methyl]-5-(2-chloroethyl)-4-methylthiazolium Chloride Hydrochloride (Chlorothiamine Chloride Hydrochloride); Thiamine EP Impurity C; SCHEMBL23857947; 3-((4-Amino-2-methylpyrimidin-5-yl)methyl)-5-(2-chloroethyl)-4-methylthiazol-3-ium chloride hydrochloride. Grades: > 95%. CAS No. 7275-24-3. Molecular formula: C12H16ClN4S.Cl.HCl. Mole weight: 355.72.
Thiamine thiocarbamate
Thiamine thiocarbamate. Group: Biochemicals. Alternative Names: [ (4-Amino-2-methyl-5-pyrimidinyl) methyl]carbamodithioic acid 1-[2-(acetyloxy)ethyl]-2-oxopropyl ester. Grades: Highly Purified. CAS No. 89285-03-0. Pack Sizes: 50mg, 100mg, 250mg, 500mg, 1g. Molecular Formula: C14H20N4O3S2. US Biological Life Sciences.
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