Palladium(II) Iodide (CAS: 7790-38-7) is a dark, crystalline palladium salt that is essentially insoluble in water and common organic solvents. Because it is a defined compound with a reproducible palladium content, it is used as a reliable metal source for the preparation of supported and homogeneous palladium catalysts, including hydrogenation and cross-coupling systems. Iodide-containing routes
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Diphenylphosphine Oxide (CAS: 4559-70-0) is a white crystalline secondary phosphine oxide that behaves as a versatile phosphorus building block. The P–H bond is reactive enough for nucleophilic addition, metalation and radical chemistry, yet the oxidised phosphorus centre keeps the compound air-stable and easy to handle compared with free phosphines. It is used to introduce diphenylphosphoryl
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2-Butyloctanedioic Acid (CAS: 50905-10-7) is a branched dibasic acid supplied as a white waxy solid. The two carboxylic acid groups react readily with diols and diamines, while the butyl branch interrupts chain packing and introduces internal flexibility, which is useful when a softer or more soluble polyester is wanted. It is mainly used as a
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Thimerosal (CAS: 54-64-8) is a white, water-soluble organomercury compound that acts as an antimicrobial preservative at very low use levels. It prevents bacterial and fungal growth in multi-dose aqueous preparations, which is why it has long been used in vaccine and ophthalmic formulations and in laboratory reagent preservation. The product is supplied to pharmacopoeial assay
3-Bromopropionic Acid (CAS: 590-92-1) is a short-chain bromocarboxylic acid supplied as a white crystalline solid. Both ends of the molecule are reactive: the acid group forms esters, amides and salts, and the primary bromide undergoes nucleophilic substitution, so the compound efficiently installs a two-carbon acidic spacer into a target structure. It is used to make
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5-Methoxytryptamine (CAS: 608-07-1) is an off-white crystalline indole amine closely related to serotonin, in which the phenolic hydroxyl group is methylated. It is a widely used building block in medicinal chemistry: the primary amine can be acylated, alkylated or cyclised, and the indole ring can be functionalised to give melatonin-type and other indole alkaloid structures.
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Rhodium(III) Iodide (CAS: 15492-38-3) is a dark, crystalline rhodium salt that is practically insoluble in water and only sparingly soluble in common organic solvents. It is used as a defined, high-purity rhodium source where an iodide route is preferred over chlorides, for example when halide exchange or iodide-mediated chemistry is required. Customers value the predictable
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1,8-Dibromonaphthalene (CAS: 17135-74-9) is a rigid, peri-substituted aromatic dibromide supplied as a white crystalline powder. The two bromine atoms sit close together on the naphthalene core, so they can be replaced selectively through cross-coupling, halogen–metal exchange or Grignard chemistry. That geometry makes the compound a useful building block for peri-functionalised ligands, fused ring systems and
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Grubbs Catalyst M101 (CAS: 250220-36-1) is a first-generation ruthenium indenylidene metathesis catalyst in which two bulky tricyclohexylphosphine ligands stabilise the active ruthenium centre. It promotes ring-closing, ring-opening and cross metathesis under mild conditions and tolerates many functional groups, so it is widely chosen for well-defined, easily reproducible transformations. The indenylidene fragment provides good thermal stability,
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Ruthenium(IV) oxide hydrate (CAS 32740-79-7) is a black, high-purity hydrated ruthenium oxide. The water content makes the powder easier to disperse and gives higher effective surface area than the anhydrous oxide. It is a precursor for ruthenium tetraoxide and mixed ruthenium oxide formulations, and is used in electrochemistry, sensors and thick-film electronic materials.
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6-Bromohexanoic Acid (CAS: 4224-70-8) is a straight-chain bromocarboxylic acid supplied as a white crystalline solid. It carries two different functional groups in one molecule: a reactive primary alkyl bromide and a carboxylic acid that can be esterified or converted into amides and salts. That combination makes it a practical spacer and linker building block for
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Iridium(IV) chloride (CAS 119401-96-6) is also identified as iridium(IV) chloride hydrate, commonly represented as IrCl₄·xH₂O. IrCl₄ is the anhydrous formula with MW 334.03; the hydrate water content varies. This high-value inorganic iridium material is used chiefly as a precursor for other iridium compounds, catalysts, electroplating and materials research.
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Tetrabutylphosphonium hydroxide (TBPH; CAS 14518-69-5) is a quaternary phosphonium hydroxide and strong organic base. commercial material is commonly supplied in water. This record specifies a 40–44 wt.% aqueous solution and describes it as a clear, colorless to almost colorless liquid. Reported chemical roles include use as a strong base in selected organic synthesis and as
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Tauroursodeoxycholic acid (TUDCA; taurine-conjugated ursodeoxycholic acid) is a hydrophilic conjugated bile acid. For CAS 14605-22-2. It is distinct from sodium tauroursodeoxycholate, which has a different composition and molecular mass; TUDCA is used mainly as an experimental bile-acid reagent in biochemical and cell biology research. Studies investigate bile-acid transport and metabolism and, in cellular or animal
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Ruthenium(III) chloride hydrate (CAS 14898-67-0) is hydrated ruthenium(III) chloride, commonly represented as RuCl₃·xH₂O. The “x” reflects variable hydration, so commercial material has no single fixed hydrate stoichiometry or molecular weight. It is a ruthenium-source reagent and precursor in inorganic and materials chemistry.
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Iridium(III) chloride hydrate (CAS 14996-61-3) is a dark, water-soluble iridium salt supplied in hydrated form with controlled iridium content. Hydrate content varies between lots, so specifications are quoted on iridium assay. It is a convenient entry point into iridium chemistry for catalysts, coordination complexes and high-purity iridium materials.
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