42035 Results for: "Chem Impex International"
Reinecke's salt ≥93.0% (by titrimetric analysis), dark red powder ACS
Supplier: Chem Impex International
Reinecke salt can be used as precipitant for primary and secondary amines, proline, hydroxyproline, and certain amino acids.
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EDTA disodium salt dihydrate ≥99%, powder ACS
Supplier: Chem Impex International
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EDC-HCl (N-(3-Dimethylaminopropyl)-N'-ethylcarbodiimide hydrochloride) ≥99% (by titrimetric analysis), powder
Supplier: Chem Impex International
A carbodiimide coupling reagent that generates a urea by-product which can be easily removed from the reaction media by extraction with water
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Chloroquine diphosphate salt ≥99% (by titrimetric analysis), crystalline powder BP
Supplier: Chem Impex International
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Ammonium chloride ≥99.5% (by titrimetric analysis) ACS
Supplier: Chem Impex International
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Triphenylphosphine ≥99.5% (by GC), crystals
Supplier: Chem Impex International
Used in the synthesis of organic and organometallic compounds.
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N-Ethyldiisopropylamine ≥99% (by GC)
Supplier: Chem Impex International
Hindered non-nucleophilic base.
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Amphotericin B (dried basis)
Supplier: Chem Impex International
Purity limit: ≥750 mg/mg (Microbial Assay on Dried Basis)
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Fast red TR salt (hemi zinc chloride salt) 10 - 12% Dye content
Supplier: Chem Impex International
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Cobalt(II) chloride hexahydrate 98.0-102.0% (by titrimetric analysis) ACS
Supplier: Chem Impex International
Used as APHA color standard.
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4-Nitrobenzophenone oxime on resin (kaiser oxime resin), 0.3-0.8 meq/g 200-400 mesh
Supplier: Chem Impex International
Excellent support for the synthesis of portected peptides using Boc strategy. Cleavage can effected by various nucleophiles.
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1,2-Dimethoxyethane, anhydrous ≥99.9% (by GC)
Supplier: Chem Impex International
Synonyms: Dimethyl-glycol; Ethylene glycol dimethyl ether; mono-Glyme
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Methyl 2-(benzylamino)acetate hydrochloride ≥99% (by HPLC)
Supplier: Chem Impex International
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Cefonicid sodium 832 - 970 mcg/mg (by HPLC)
Supplier: Chem Impex International
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Gentamicin sulfate USP
Supplier: Chem Impex International
White to off-white powder
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L(-)-Tryptophan ≥99%, crystalline powder
Supplier: Chem Impex International
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Fmoc-Osu (N-(9-fluorenylmethoxycarbonyloxy)succinimide) ≥99% (by HPLC)
Supplier: Chem Impex International
Reagent for the preparation of pure Fmoc amino acids free from contamination by Fmoc-dipeptides.
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1-Heptanesulfonic acid sodium salt, anhydrous ≥99% (by titrimetric analysis) for HPLC
Supplier: Chem Impex International
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Hydroxy naphthol blue disodium salt ACS for calcium determination
Supplier: Chem Impex International
Used in the determination of calcium.
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α,α,α',α'-Tetrabromo-o-xylene ≥97%, powder
Supplier: Chem Impex International
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ß-Nicotinamide adenine dinucleotide phosphate (NADP-Na2, oxidized form) ≥98%
Supplier: Chem Impex International
ß-Nicotinamide adenine dinucleotide phosphate (NADP-Na2, oxidized form)
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Chloromethyl polystyrene resin, 1.2-1.4 meq/g
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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Ammonium formate ≥98% (by titrimetric analysis), white crystalline powder
Supplier: Chem Impex International