42035 Results for: "Chem Impex International"
2,3-Dichloro-5,6-dicyano-p-benzoquinone ≥98.5%, yellow crystalline powder
Supplier: Chem Impex International
2,3-Dichloro-5,6-dicyano-1,4-benzoquinone is used as an oxidant for the dehydrogenation of alcohol, phenol, steroid ketones and in the synthesis of quinolines from imines and alkynes or alkenes. It is a deprotection reagent for thioacetals, acetals and ketals.
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Sodium acetate trihydrate 99.0-101.0% (by titrimetric analysis) ACS
Supplier: Chem Impex International
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Sodium alginate, ≤ 5000 (cfu/g), white powder, low viscosity
Supplier: Chem Impex International
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Bismarck brown Y >45% (dye content), solid, certified
Supplier: Chem Impex International
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Na-Boc-Nim-2,4-dinitrophenyl-L-histidine merrifield resin 0.25 - 0.7 meq/g
Supplier: Chem Impex International
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Tetrakis(triphenylphosphine)palladium(0) ≥ 99.5% (≥ 9% Pd, Assay)
Supplier: Chem Impex International
Pd(PPh3)4 is widely used as a catalyst for palladium-catalyzed coupling reactions.
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1,1'-Carbonyldiimidazole ≥98%, white to off-white powder
Supplier: Chem Impex International
1,1'-Carbonyldiimidazole is mainly employed to convert alcohols and amines into carbamates, esters, and ureas. It is also used in the synthesis of peptides and nucleoside triphosphates.
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Chloromethylated polystyrene 0.3 - 0.8 meq/g, granules
Supplier: Chem Impex International
Chloromethyl polystyrene and styrene monomers are copolymerized in order to obtain the Merrifield resin. This method avoids the use of carcinogenic chloromethyl methyl ether. This resin is used in the synthesis of peptide acids using Boc strategy and can be cleaved using HF or TFMSA. Different Boc protected amino acids attached to this resin are also available from stock. Please inquire.
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Na-Boc-Nim-benzyloxymethyl-L-histidine merrifield resin 0.25 - 1.0 meq/g
Supplier: Chem Impex International
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N-(2-Chlorotrityl resin)-L-isoleucine benzotriazolyl ester 0.25 - 0.80 meq/g
Supplier: Chem Impex International
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Adenosine-5'-triphosphate disodium salt (ATP disodium salt) trihydrate ≥98% (by HPLC)
Supplier: Chem Impex International
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Malonyl coenzyme A lithium salt ≥95% (by NMR), Powder
Supplier: Chem Impex International
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Na-Boc-Nin-formyl-L-tryptophan 4-oxymethylphenylacetamidomethyl 0.55 meq/g on Merrifield resin
Supplier: Chem Impex International
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Fmoc-Lys(biotinyl-ε-aminocaproyl)-OH ≥99%
Supplier: Chem Impex International
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Bisacrylamide ≥99.5% conductivity ≤ 10 µmho/cm for electrophoresis
Supplier: Chem Impex International
Suitable for electrophoresis.
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Triethanolamine (trolamine) ≥99.5% (by GC)
Supplier: Chem Impex International
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Cytidine-5'-triphosphoric acid disodium salt (CTP-Na2) ≥98% (by HPLC)
Supplier: Chem Impex International
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2-Chloro-6-(trichloromethyl)pyridine 99
Supplier: Chem Impex International
2-Chloro-6-(trichloromethyl)pyridine 99
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Chloromethylated polystyrene 1,2 - 1,4 meq/g, granules
Supplier: Chem Impex International
Chloromethyl polystyrene and styrene monomers are copolymerized in order to obtain the Merrifield resin. This method avoids the use of carcinogenic chloromethyl methyl ether. This resin is used in the synthesis of peptide acids using Boc strategy and can be cleaved using HF or TFMSA. Different Boc protected amino acids attached to this resin are also available from stock. Please inquire.
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Carbenicillin disodium salt, ≥ 770 mcg/mg USP
Supplier: Chem Impex International
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FMOC isothiocyanate ≥95% (by NMR), pale yellow solid
Supplier: Chem Impex International
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2,2,6,6-Tetramethylpiperidine ≥99%, liquid
Supplier: Chem Impex International
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Chloromethylated polystyrene ≥1.20 meq/g, granules
Supplier: Chem Impex International
Chloromethyl polystyrene and styrene monomers are copolymerized in order to obtain the Merrifield resin. This method avoids the use of carcinogenic chloromethyl methyl ether. This resin is used in the synthesis of peptide acids using Boc strategy and can be cleaved using HF or TFMSA. Different Boc protected amino acids attached to this resin are also available from stock. Please inquire.
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Tris(dibenzylideneacetone)dipalladium(0) ≥97.0% (carbon basis)
Supplier: Chem Impex International
Catalyst for stille reactions of support bound stannane.
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Potassium chloride 99.0-100.5% (by titrimetric analysis) USP
Supplier: Chem Impex International
Used in nutrient, gelling agent, salt substitute and yeast food.
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Trifluoroacetic acid ≥99.9%
Supplier: Chem Impex International
Suitable for peptide and protein synthesis.