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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Esters
1-(2-Carboxylatoethyl)-4,5-dihydro-3-(2-hydroxyethyl)-2-isoheptadecyl-1H-imidazolium (Imidazoline-Derived Amphoteric Surfactant)
CAS 68630-96-6
An imidazolinium-based amphoteric surfactant offering mild cleansing and conditioning in surfactant blends. It is documented as a surfactant used for cleansing, foaming, and hair conditioning in personal-care formulations.
Emolliency
Surfactancy
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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-Hexanol (n-Hexanol)
CAS 111-27-3
A straight-chain C6 alcohol supplying solvency and a hexyl building block for esters, plasticizers, and finishing agents. It is used as a solvent for fats, waxes, dyes, and paints, as an intermediate for plasticizers and perfume esters, and in textile and leather finishing.
Defoaming / Foam Control
Cleaning / Degreasing
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Specialty Additives
1-Hydroxycyclohexyl phenyl ketone (184)
CAS 947-19-3
Type I alpha-hydroxyketone photoinitiator giving low-yellowing cure of clear UV coatings, lacquers and overprint varnish (Coatings & Construction) Standard initiator for clear UV/UV-LED inks and high-gloss line coatings (Industrial Manufacturing) Cures clear UV-curable adhesives, hardcoats and plastics (Plastics & Polymers)
Crosslinking / Curing
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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-Diaminocyclohexane (1,2-DACH)
CAS 694-83-7
A vicinal cycloaliphatic diamine used as a chelating and heterocyclic building block. Industry references record its use in the synthesis of nitrogen-heterocyclic derivatives and in corrosion-inhibitor chemistry.
Crosslinking / Curing
pH Adjustment
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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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Amines & Amides
1,3-Bis(aminomethyl)cyclohexane (1,3-BAC)
CAS 2579-20-6
A saturated cyclic diamine used as an epoxy curing agent. Industry references record its use as a curing agent (hardener) for epoxy resins. Supplied as a bulk amine intermediate.
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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Polymers & Resins
1,4-Butanediol Diglycidyl Ether (BDDGE)
CAS 2425-79-8
A difunctional reactive diluent that thins and flexibilizes epoxy systems. It is added to epoxy resin systems to reduce viscosity and acts as a flexibilizer for aromatic epoxy resins.
Crosslinking / Curing
Viscosity Modification
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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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Polymers & Resins
1,6-Hexanediamine, N,N’-bis(2,2,6,6-tetramethyl-4-piperidinyl)-, polymer with 2,4,6-trichloro-1,3,5-triazine
CAS 192268-64-7
High-molecular-weight polymeric HALS for long-term light stabilization of polyolefin films, tapes and fibers Low-volatility, extraction-resistant protection suited to agricultural and packaging films Weathering protection of PP/PE, PA, TPE and PU articles
UV Protection
Preservation
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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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Specialty Additives
2-Benzyl-2-(dimethylamino)-1-butan-1-one
CAS 119313-12-1
High-activity Type I alpha-aminoketone photoinitiator for fast through-cure of pigmented and dark UV coatings (Coatings & Construction) Strong cure of black/pigmented UV inks, solder masks and screen inks (Industrial Manufacturing) Cures pigmented UV-curable plastics, adhesives and photoresists (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
2-Benzyl-2-(dimethylamino)-1-butan-1-one
CAS 119313-12-1
An alpha-aminoketone Type I photoinitiator that fragments under UV light to start free-radical cure of acrylate and other unsaturated systems. Its near-UV absorption makes it effective in white and pigmented formulations, where it drives cure down through the film rather than only at the surface
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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Glycols & Polyols
2-Ethoxyethanol (Ethylene Glycol Monoethyl Ether, EGEE)
CAS 110-80-5
A coupling glycol-ether solvent bridging polar and nonpolar phases in coatings, inks, and cleaning formulations. It dissolves nitrocellulose, lacquers, resins, dyes, and epoxy systems, and is used as a solvent for coatings, inks, and adhesives and as an anti-icing additive in aviation fuel.
Solvency
Viscosity Modification
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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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Esters
2-Ethylhexyl Acrylate (2-EHA)
CAS 103-11-7
The soft-monomer workhorse for pressure-sensitive adhesives and latex binders. It is used to make pressure-sensitive adhesives, water-based paints and coatings, printing inks, and paper and textile treatments, and it copolymerizes with vinyl acetate and vinyl chloride.
Film Formation
Synthesis Intermediate
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Phosphate Esters & Derivatives
2-Ethylhexyl Diphenyl Phosphate (DPOP)
CAS 1241-94-7
Low-temperature flame retardant plasticizer for flexible PVC and vinyl Fire-resistant flexibilizer for wire/cable jacketing and coated fabrics Mixed alkyl-aryl phosphate balancing flame resistance and cold-flex
Flame Retardancy
Plasticizing
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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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Specialty Additives
2-Hydroxy-2-methyl-1-phenylpropan-1-one (1173)
CAS 7473-98-5
Liquid Type I alpha-hydroxyketone photoinitiator for fast, low-yellowing surface cure of clear UV coatings (Coatings & Construction) Highly compatible liquid for UV/UV-LED clear inks and overprint varnishes (Industrial Manufacturing) Cures clear UV-curable adhesives and plastics; common blend partner with TPO (Plastics & Polymers)
Crosslinking / Curing
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Esters
2-Hydroxyethyl Acrylate (HEA)
CAS 818-61-1
A hydroxyl-functional acrylic monomer that builds crosslinkable thermoset coatings. It is used as a comonomer in thermosetting acrylic resins, where its hydroxyl group provides crosslinking sites with isocyanates, melamine, and epoxies.
Film Formation
Synthesis Intermediate
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Glycols & Polyols
2-Hydroxyethyl Methacrylate (HEMA)
CAS 868-77-9
A reactive hydroxyl-bearing monomer supplied for radiation-cure, adhesive, and hydrogel polymer systems. It is used in UV-curable inks, coatings and adhesives, acrylic resins, dental materials, and as a comonomer in hydrogels and contact-lens polymers.
Moisture Control
Solvency
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Acids & Salts
2-Hydroxyisobutyric Acid (α-Hydroxyisobutyric Acid)
CAS 594-61-6
A compact branched α-hydroxy acid used as a synthetic building block and intermediate. It is used as a chemical intermediate and a building block in organic synthesis.
pH Adjustment
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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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Glycols & Polyols
2-Methoxyethanol (Ethylene Glycol Monomethyl Ether)
CAS 109-86-4
A glycol-ether solvent spanning coatings, dye processing, and microelectronics. It is used in varnishes, lacquers, wood stains, and dye baths, and in the microelectronics industry within photoresist formulations and circuit-board manufacture.
Solvency
Viscosity Modification
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