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Acids & Salts
(2-Hydroxypropyl)trimethylammonium formate
CAS 62314-25-4
Quaternary-ammonium trimerization catalyst that drives isocyanate→isocyanurate (PIR) network formation Used in polyisocyanurate (PIR) rigid foam boardstock and panels for fire-resistant insulation Promotes crosslink density/thermal stability in rigid PU/PIR systems
Crosslinking / Curing
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Specialty Additives
(2-Methyl-3-phenylphenyl)methanol (Bifenthrin Alcohol)
CAS 76350-90-8
Key alcohol intermediate in the manufacture of the pyrethroid insecticide bifenthrin (Agriculture) Biphenyl-methanol building block for agrochemical synthesis (Industrial Manufacturing)
Synthesis Intermediate
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Silanes & Organosilanes
(3-Aminopropyl)silanetriol
CAS 58160-99-9
A water-soluble aminosilane triol, the hydrolysis-stable form of an aminopropyl silane coupling agent. Aminofunctional silanes of this class act as coupling agents and adhesion promoters, bonding inorganic substrates such as glass, mineral fillers, and metals to organic resins.
Coupling / Adhesion Promotion
Crosslinking / Curing
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Silanes & Organosilanes
(3-Chloropropyl)trimethoxysilane (CPTMS)
CAS 2530-87-2
A chloro-functional silane that bridges inorganic fillers to organic resins while leaving a reactive propyl-chloride handle for further derivatization. It is used as a coupling agent in filled composites and treated textile goods, as an adhesion promoter, and as an intermediate for synthesizing other organosilicon…
Coupling / Adhesion Promotion
Crosslinking / Curing
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Silanes & Organosilanes
(3-Mercaptopropyl)trimethoxysilane (MPTMS)
CAS 4420-74-0
A thiol-bearing silane bridge that ties polymers to inorganic fillers, glass, and metal. It is used as an adhesion and coupling promoter in polysulfide and polyurethane caulks and sealants and as a binder linking organic polymers to mineral and metal surfaces.
Coupling / Adhesion Promotion
Crosslinking / Curing
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Amines & Amides
1-(3-Aminopropyl)imidazole
CAS 5036-48-6
Reactive (incorporable) imidazole catalyst for semi-rigid and flexible PU foam Primary-amine handle lets the catalyst bind into the polymer, lowering emissions Also used as an epoxy curing agent/accelerator
Crosslinking / Curing
Corrosion Inhibition
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Specialty Additives
1-(Biphenyl-4-yl)-2-methyl-2-morpholinopropan-1-one
CAS 94576-68-8
Type I alpha-aminoketone photoinitiator for low-migration cure of pigmented UV coatings (Coatings & Construction) Used in UV inks and low-odor/low-migration print systems for packaging (Industrial Manufacturing) Initiates cure of pigmented UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
1-Hexadecylnaphthalene
CAS 56388-47-7
A long-alkyl-chain naphthalene supplied as a lubricating-agent component. It is used as a lubricating agent.
Lubrication
Solvency
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Specialty Additives
1-Methylimidazole (NMI)
CAS 616-47-7
Liquid imidazole accelerator/curing catalyst for epoxy resins and a latent epoxy curing agent in one-component formulations Used in anhydride-cured epoxy castings, electrical laminates and adhesives to speed cure Also serves as a catalyst/acid scavenger in polyurethane and silicone systems
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
1-octane-1,2-dione 2-(O-benzoyloxime)
CAS 253585-83-0
High-sensitivity Type I oxime-ester photoinitiator for fast cure of pigmented and highly filled UV systems (Coatings & Construction) Workhorse initiator for color-filter resists, black-matrix and photoresist imaging in display/electronics (Industrial Manufacturing) Cures pigmented UV-curable plastics, photoresists and printing-plate resins (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
1-octane-1,2-dione 2-(O-benzoyloxime)
CAS 253585-83-0
A high-sensitivity oxime-ester Type I photoinitiator that fragments under UV to generate radicals very efficiently, even in heavily pigmented or filled systems. It is a workhorse for imaging-grade applications such as color-filter and black-matrix resists in display manufacturing
Crosslinking / Curing
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Solvents - Oxygenated
1-Pentanol (n-Amyl Alcohol)
CAS 71-41-0
A C5 primary alcohol solvent and ester intermediate. It is used as a solvent for resins, gums, and petroleum additives, as an intermediate for amyl acetate and other esters, and as a frother in ore flotation.
Solvency
Synthesis Intermediate
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Solvents - Aliphatic
1,1,1-Trichloroethane (Methyl Chloroform)
CAS 71-55-6
A chlorinated solvent and degreaser whose supply is governed by ozone-protection controls. It is an ozone-depleting substance whose production has been phased out under the Montreal Protocol.
Solvency
Cleaning / Degreasing
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Amines & Amides
1,2-Dimethylimidazole (1,2-DMI)
CAS 1739-84-0
Imidazole catalyst for rigid and semi-rigid polyurethane/PIR foam Latent/accelerator catalyst for epoxy curing systems Drives crosslink formation with low odor
Crosslinking / Curing
Synthesis Intermediate
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Glycols & Polyols
1,4-Butanediol (BDO)
CAS 110-63-4
Short-chain diol chain extender that builds the hard segment in cast PU and TPU elastomers Reacts with isocyanate to raise modulus, hardness and tensile strength Standard chain extender paired with PTMEG/polyester polyols
Crosslinking / Curing
Synthesis Intermediate
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Amines & Amides
1,4-Cyclohexanebis(methylamine)
CAS 2549-93-1
Cycloaliphatic diamine curing agent for epoxy coatings and adhesives, giving fast cure with good color stability and weatherability Crosslinks epoxy resins in flooring, can/coil coatings and fiber-reinforced composites Serves as a diamine chain extender in polyamide and polyurethane systems
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
2-(Dimethylamino)-2-(4-methylbenzyl)-1-butan-1-one
CAS 119344-86-4
A high-activity alpha-aminoketone Type I photoinitiator used to push cure through dark and heavily pigmented UV formulations. It cleaves under near-UV light to generate radicals, and its efficiency makes it a frequent choice where thicker or more opaque films would otherwise undercure beneath the surface
Crosslinking / Curing
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Amines & Amides
2-[(4-Ethylanilino)methyl]phenol
CAS 90383-16-7
Synthesis Intermediate
Crosslinking / Curing
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Amines & Amides
2-{(methyl)amino}ethanol (Trimethylaminoethylethanolamine)
CAS 2212-32-0
Low-odor reactive (isocyanate-incorporable) blowing catalyst for flexible, molded and semi-rigid polyether polyurethane foam Reduces amine emissions/fogging in automotive seating and molded foam because the catalyst is built into the polymer network Balances blow vs gel in slabstock and high-resilience foam systems
Crosslinking / Curing
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Glycols & Polyols
2-Butoxyethanol (Ethylene Glycol Monobutyl Ether)
CAS 111-76-2
A coupling glycol-ether solvent bridging water- and oil-soluble formulation components. It is widely used as a coalescing and coupling solvent in surface coatings and inks and as the active solvent in household and industrial cleaners, glass cleaners, and metal cleaners.
Solvency
Viscosity Modification
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Amines & Amides
2-Chloroaniline (OCA)
CAS 95-51-2
Aromatic-amine intermediate/curative used in polyurethane elastomer systems Chain-extends/cures cast PU elastomers (supplier lists as a vulcanizing agent) Building block for related PU curatives
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
2-Chlorobenzaldehyde
CAS 89-98-5
ortho-Chlorobenzaldehyde intermediate used in pharmaceutical active-ingredient synthesis (Pharmaceuticals) Building block for dyes, fragrances and agrochemicals (Industrial Manufacturing, Agriculture)
Synthesis Intermediate
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Specialty Additives
2-Chlorobenzonitrile
CAS 873-32-5
ortho-Chlorobenzonitrile intermediate for pharmaceutical and agrochemical synthesis (Pharmaceuticals, Agriculture) Building block for dye and specialty chemical manufacture (Industrial Manufacturing)
Synthesis Intermediate
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Specialty Additives
2-Ethyl-4-methylimidazole (2E4MI)
CAS 931-36-2
Liquid imidazole accelerator/curing agent for epoxy resins, offering low-temperature reactivity and long usable life Used in electrical laminates, adhesives and powder coatings as an accelerator for anhydride and dicyandiamide cures Drives fast epoxy homopolymerization at moderate cure temperatures
Crosslinking / Curing
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Specialty Additives
2-Ethylanthraquinone (2-EAQ)
CAS 84-51-5
Type II anthraquinone photoinitiator/sensitizer used with amine synergists for UV cure of coatings (Coatings & Construction) Sensitizer for UV inks and wood/paper overprint systems (Industrial Manufacturing) Sensitizes cure of UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Solvents - Oxygenated
2-Ethylhexanol (2-EH)
CAS 104-76-7
The branched octanol behind 2-ethylhexyl ester plasticizers, and a low-volatility process solvent in its own right. Its largest use is as a feedstock for plasticizers and other esters; it also serves as a defoamer, wetting agent, low-volatility solvent, and textile-finishing additive.
Solvency
Synthesis Intermediate
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Amines & Amides
2-Ethylhexyl 4-(dimethylamino)benzoate
CAS 21245-02-3
Liquid low-odor tertiary-amine co-initiator for Type II UV cure with reduced migration vs EDB (Coatings & Construction) Amine synergist of choice in low-migration UV/UV-LED packaging inks (Industrial Manufacturing) Accelerates oxygen-inhibited surface cure of UV adhesives and plastics (Plastics & Polymers)
Crosslinking / Curing
UV Protection
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Specialty Additives
2-Ethylimidazole (2EI)
CAS 1072-62-4
Imidazole accelerator/curing agent for epoxy systems used in laminates, coatings and adhesives Acts as a latent catalyst for one-component epoxy cures and as a co-accelerator with anhydride/dicyandiamide hardeners Promotes high-Tg, heat-resistant epoxy networks
Crosslinking / Curing
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Phosphate Esters & Derivatives
2-Hydroxyphosphonocarboxylic Acid (HPAA, Hydroxyphosphonoacetic Acid)
CAS 23783-26-8
A carbon-phosphorus phosphonate used to inhibit metal corrosion in industrial water systems. It is applied in industrial water-treatment programs, where phosphonates of this type protect metal surfaces in recirculating and cooling-water systems.
Chelation / Sequestration
Scale Inhibition
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Specialty Additives
2-Isopropylthioxanthone (ITX)
CAS 5495-84-1
Type II thioxanthone photoinitiator/sensitizer used with amine co-initiators for UV-curing pigmented coatings and inks (Coatings & Construction) Extends absorption to longer UV wavelengths for high-speed UV/UV-LED printing and overprint varnish (Industrial Manufacturing) Sensitizes through-cure of pigmented UV-cure plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
2-Mercaptobenzothiazole (MBT)
CAS 149-30-4
The benchmark thiazole accelerator for sulfur cure, doubling as a metal corrosion inhibitor. It accelerates the sulfur vulcanization of natural and synthetic rubber, and is also used as a corrosion inhibitor in metalworking fluids, antifreezes, and greases, and in adhesives.
Corrosion Inhibition
Crosslinking / Curing
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Amines & Amides
2-Methyl-1,4-diazabicyclooctane (2-Methyltriethylenediamine)
CAS 1193-66-4
Strong gelling/balanced bicyclic amine catalyst for rigid and flexible polyurethane foam Methylated DABCO variant offering modified activity vs standard TEDA for reaction-profile tuning Used where a delayed onset relative to neat TEDA is desired
Crosslinking / Curing
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Specialty Additives
2-Methylimidazole (2MI)
CAS 693-98-1
Imidazole accelerator/curing agent for epoxy resins; a standard latent catalyst in one-component epoxy systems Used in electrical laminates, powder coatings and adhesives as an accelerator for dicyandiamide and anhydride cures Yields high-Tg, heat-resistant epoxy networks
Crosslinking / Curing
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Amines & Amides
2-Methylpentamethylenediamine (MPMD)
CAS 15520-10-2
Low-viscosity aliphatic diamine curing agent for epoxy coatings, adhesives and flooring with good handling and pot life Diamine chain extender for polyurethane and polyamide systems Used where a liquid, fast-handling primary-amine hardener is preferred over rigid aromatic amines
Crosslinking / Curing
Synthesis Intermediate
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Amines & Amides
2-Methyltriethylenediamine (2-Methyl-1,4-diazabicyclooctane)
CAS 1193-66-4
A methylated bicyclic tertiary-amine catalyst, structurally the 2-methyl homolog of triethylenediamine (TEDA). The added methyl group shifts the reaction profile, giving a more delayed onset than neat TEDA while retaining strong gelling activity. It is used to tune cure timing in rigid and flexible polyurethane…
Crosslinking / Curing
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Specialty Additives
2,2-Diethoxyacetophenone (DEAP)
CAS 6175-45-7
Liquid Type I acetophenone-derivative photoinitiator for cure of clear UV coatings (Coatings & Construction) Liquid initiator for UV inks, varnishes and adhesive primers (Industrial Manufacturing) Cures clear UV-curable adhesives and plastics (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
2,3-Dichlorotoluene
CAS 32768-54-0
Chlorinated toluene intermediate for agrochemical actives and dye synthesis (Agriculture, Industrial Manufacturing) Building block in pharmaceutical fine-chemical routes (Pharmaceuticals)
Synthesis Intermediate
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Specialty Additives
2,3,4,5,6-Pentachlorobenzonitrile
CAS 20925-85-3
Perchlorinated benzonitrile intermediate for agrochemical and specialty chemical synthesis (Agriculture, Industrial Manufacturing)
Synthesis Intermediate
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Specialty Additives
2,3,5,6-Tetrachloroterephthalonitrile
CAS 1897-41-2
Chlorinated aromatic dinitrile intermediate for polymer and specialty chemical synthesis (Plastics & Polymers, Industrial Manufacturing) Building block for agrochemical manufacture (Agriculture)
Synthesis Intermediate
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Specialty Additives
2,3,5,6-Tetrafluoroterephthalonitrile
CAS 1835-49-0
Perfluorinated aromatic dinitrile building block for pharmaceutical and agrochemical fluorine chemistry (Pharmaceuticals, Agriculture) Intermediate for specialty fluorochemical synthesis (Industrial Manufacturing)
Synthesis Intermediate
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Specialty Additives
2,4-Dichlorobenzaldehyde
CAS 874-42-0
Dichlorinated benzaldehyde intermediate for agrochemical and pharmaceutical actives, including azole-type routes (Agriculture, Pharmaceuticals) Building block for specialty chemical synthesis (Industrial Manufacturing)
Synthesis Intermediate
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Specialty Additives
2,4-Dichlorobenzonitrile
CAS 6574-98-7
Dichlorinated benzonitrile intermediate for agrochemical synthesis (Agriculture) Building block for pharmaceutical and specialty chemical routes (Pharmaceuticals, Industrial Manufacturing)
Synthesis Intermediate
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Specialty Additives
2,4-Diethylthioxanthone (DETX)
CAS 82799-44-8
Type II diethylthioxanthone sensitizer paired with amine co-initiators for UV-curing pigmented inks and coatings (Coatings & Construction) Long-wavelength absorption improves through-cure and speed in UV/UV-LED printing and electronics (Industrial Manufacturing) Low-odor alternative to ITX for sensitizing pigmented UV-cure plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
2,4,6-Trichlorobenzonitrile
CAS 6575-05-9
Trichlorinated benzonitrile intermediate for agrochemical active-ingredient synthesis (Agriculture) Building block for specialty chemical manufacture (Industrial Manufacturing)
Synthesis Intermediate
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Specialty Additives
2,4,6-Trichlorophenol (TCP)
CAS 88-06-2
Chlorophenol used as a biocidal/antimicrobial active and wood-preservative intermediate (Coatings & Construction, Industrial Manufacturing) Intermediate for agrochemical and specialty chemical synthesis (Agriculture)
Biocidal Action
Synthesis Intermediate
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Specialty Additives
2,4,6-Trifluorobenzonitrile
CAS 96606-37-0
Trifluorinated benzonitrile building block for pharmaceutical fluorine chemistry (Pharmaceuticals) Intermediate for agrochemical and specialty fluorochemical synthesis (Agriculture, Industrial Manufacturing)
Synthesis Intermediate
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Specialty Additives
2,5-Dimethyl-2,5-Di(tert-butylperoxy)hexane
CAS 78-63-7
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
2,6-Dichlorobenzonitrile (Dichlobenil)
CAS 1194-65-6
Active ingredient of the soil-applied herbicide dichlobenil for non-crop and aquatic weed control (Agriculture) Intermediate in the manufacture of downstream fluorobenzonitrile building blocks (Industrial Manufacturing)
Biocidal Action
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