Specialty Additives
4-Benzoyl-4′-methyldiphenyl sulfide (BMS)
CAS 83846-85-9
Type II thioether-benzophenone photoinitiator with extended absorption, used with amine synergists in UV coatings (Coatings & Construction) Improves cure speed and surface cure of UV/UV-LED inks and varnishes (Industrial Manufacturing) Sensitizes cure of UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
4-Benzoylbiphenyl (PBZ)
CAS 2128-93-0
Type II benzophenone-class photoinitiator with red-shifted absorption for high-throughput surface cure of UV coatings (Coatings & Construction) Used with amine synergists in UV/UV-LED inks (Industrial Manufacturing) Cures UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
4-Chlorobenzophenone (CBZ)
CAS 134-85-0
Type II chlorinated-benzophenone photoinitiator with shifted absorption for surface cure of UV coatings (Coatings & Construction) Used with amine synergists in UV inks and varnishes (Industrial Manufacturing) Cures UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
4-Methylbenzophenone (MBZ)
CAS 134-84-9
Type II benzophenone-derivative photoinitiator used with amine synergists for surface cure of UV coatings (Coatings & Construction) Often blended with benzophenone as a liquid-friendly eutectic for UV/UV-LED inks (Industrial Manufacturing) Cures UV-curable plastics and adhesives in amine-synergist systems (Plastics & Polymers)
Crosslinking / Curing
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Amines & Amides
4-Methylmorpholine (NMM)
CAS 109-02-4
Tertiary-amine catalyst for polyester-polyol polyurethane flexible block foam Mild basic catalyst that promotes the urethane cure reaction Also serves as an acid scavenger/base in related industrial syntheses
Crosslinking / Curing
pH Adjustment
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Amines & Amides
4,4′-Bis(diethylamino)benzophenone
CAS 90-93-7
Aminobenzophenone sensitizer/co-initiator that extends Type II cure to longer wavelengths in UV coatings (Coatings & Construction) Photosensitizer for UV/UV-LED inks, often paired with thioxanthones (Industrial Manufacturing) Sensitizes cure of pigmented UV-curable plastics and adhesives (Plastics & Polymers)
Crosslinking / Curing
Synthesis Intermediate
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Amines & Amides
4,4′-Diaminodicyclohexylmethane (PACM, H12MDA)
CAS 1761-71-3
A cycloaliphatic diamine hardener and isocyanate precursor prized for light-stable, weather-resistant networks. Diamines of this class are used as curing agents (hardeners) for epoxy resins and as chemical intermediates, including the precursor to hydrogenated MDI (H12MDI) for light-stable polyurethanes.
Crosslinking / Curing
pH Adjustment
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Amines & Amides
4,4′-Methylenebis(N-sec-butylcyclohexylamine)
CAS 154279-60-4
Cycloaliphatic secondary-diamine chain extender/curative for cast PU elastomers Slows reactivity vs aromatic curatives for longer pot life and light-stable (non-yellowing) elastomers Used in high-performance, aliphatic PU coatings and castings
Crosslinking / Curing
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Solvents - Oxygenated
Acetone (Propanone)
CAS 67-64-1
Acetone is the workhorse fast-evaporating ketone solvent — it dissolves fats, oils, resins, rubber and plastics cleanly and is a major feedstock for downstream ketone chemistry.
Solvency
Cleaning / Degreasing
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Esters
Acetyl Tributyl Citrate
CAS 77-90-7
Plasticizing
Film Formation
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Polymers & Resins
Acrylates/Beheneth-25 Methacrylate Copolymer
CAS 156798-18-4
A hydrophobically modified acrylic copolymer used as an associative rheology modifier and thickener. Copolymers of this class are used as rheology modifiers and thickeners that build viscosity and stabilize aqueous personal-care and household formulations on neutralization.
Viscosity Modification
Thickening / Rheology
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Polymers & Resins
Acrylates/C10-30 Alkyl Acrylate Crosspolymer
CAS 176429-87-1
A hydrophobically modified acrylic thickener that emulsifies and gels oily phases with minimal additional emulsifier. It is used as a rheology modifier, emulsion stabilizer and gelling agent that thickens and stabilizes emulsions, including those with high oil or electrolyte loads.
Surfactancy
Film Formation
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Surfactants - Nonionic
Acrylates/Steareth-20 Methacrylate Copolymer
CAS 676168-27-7
An associative acrylic thickener engineered to build viscosity and stabilize surfactant and emulsion systems. Copolymers of this class function as rheology modifiers and thickeners, building viscosity and providing suspension and emulsion stability in aqueous personal-care and household formulations.
Thickening / Rheology
Film Formation
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Acids & Salts
Acrylic Acid (AA)
CAS 79-10-7
The base monomer of the acrylics value chain, feeding superabsorbents, acrylate esters, and waterborne polymers. Most is converted to acrylate esters (ethyl, butyl, methyl, 2-ethylhexyl acrylate) and to polyacrylic acid and its salts; major polymer outlets include superabsorbents, coatings, adhesives, paints, and emulsion polymers.
Crosslinking / Curing
Synthesis Intermediate
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Mineral Fillers & Pigments
Activated Carbon (Activated Charcoal, GAC)
CAS 7440-44-0
A high-surface-area adsorbent for purification of water, air, gases, and process streams. It is used as an adsorbent for purification and decolorization of water, air, gases, and liquids, and as a reducing agent in process applications.
Color / Pigmentation
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Acids & Salts
Adipic Acid
CAS 124-04-9
The dicarboxylic-acid backbone of nylon 6,6, polyester polyols, and plasticizers. Its principal markets are feedstock for nylon 6,6 resins and fibers, polyester polyols, and plasticizers; it is also used in polyurethane foams, lubricants, adhesives, and as a food acidulant.
pH Adjustment
Synthesis Intermediate
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Mineral Fillers & Pigments
Aluminum Chloride Hexahydrate (AlCl3·6H2O)
CAS 7784-13-6
The water-soluble hydrated aluminum chloride used in cosmetic astringent and industrial processing formulations. It is used as an astringent/antiperspirant ingredient in cosmetics and as a precursor and processing aid in textile dyeing, wood preservation, and photographic and petroleum applications.
Color / Pigmentation
pH Adjustment
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Mineral Fillers & Pigments
Aluminum Chloride, Anhydrous (AlCl3)
CAS 7446-70-0
The benchmark Lewis-acid catalyst for Friedel-Crafts chemistry and a precursor to aluminum compounds. It is the classic catalyst for Friedel-Crafts acylation and alkylation and serves as a chemical intermediate for numerous aluminum compounds, with further use in petroleum cracking and the manufacture of rubbers and…
Color / Pigmentation
pH Adjustment
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Phosphate Esters & Derivatives
Aluminum Diethylphosphinate
CAS 225789-38-8
Flame Retardancy
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Mineral Fillers & Pigments
Aluminum Hydroxide (ATH, Alumina Trihydrate)
CAS 21645-51-2
A halogen-free mineral flame retardant that quenches fire by releasing water as it decomposes. In plastics, rubber, and latex foams it releases water on heating to retard flame and suppress smoke.
Color / Pigmentation
Flame Retardancy
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Silicone Fluids & Oils
Amino-Functional Silicone (Aminosilicone)
CAS 71750-80-6
An amine-modified siloxane that anchors to fiber surfaces to deliver durable softness and smoothness. The pendant amine groups give it strong substantivity to fibers, making it a softening and conditioning agent for textile finishing.
Conditioning
Film Formation
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Solvents - Oxygenated
Aminomethyl Propanol (AMP, 2-Amino-2-Methyl-1-Propanol)
CAS 124-68-5
A multifunctional amino alcohol used as a neutralizer, emulsifier, and acid-gas absorbent. Industry references record its use as a neutralizer/pH regulator and emulsifying agent in cosmetic creams and lotions, mineral-oil and wax emulsions, as an intermediate for surface-active agents, and as an absorbent for acidic…
pH Adjustment
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Acids & Salts
Ammonium Hydroxide (Aqueous Ammonia)
CAS 1336-21-6
Aqueous ammonia for pH adjustment, cleaning, water treatment, and chemical manufacturing. It is used in the manufacture of rayon and textiles, pulp and paper, rubber, detergents and cleaners, and inks; in water purification and pH adjustment; in photographic development; and in metal extraction and refining.
pH Adjustment
Cleaning / Degreasing
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Acids & Salts
Ammonium Polyphosphate (APP)
CAS 68333-79-9
A halogen-free phosphate widely used as the acid source in intumescent fire-retardant systems. It is used as a halogen-free flame retardant in intumescent coatings and polymers and as a phosphorus-nitrogen source in liquid fertilizers.
pH Adjustment
Flame Retardancy
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Mineral Fillers & Pigments
Amorphous Silica (Synthetic Amorphous Silica, Silicon Dioxide)
CAS 7631-86-9
A versatile synthetic silica engineered for flow, rheology, and reinforcement across powders, liquids, and rubber. It is used as an anti-caking and free-flow agent in powders, a liquid carrier and adsorbent, a viscosity-control/thickening agent, a defoamer, a mild abrasive, and a reinforcing filler in rubber…
Thickening / Rheology
Color / Pigmentation
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Specialty Additives
Anti Terra 203
CAS 64742-95-6
A dispersing and wetting agent for solvent-borne coating systems.
Solvency
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Mineral Fillers & Pigments
Antimony Trioxide (Antimony(III) Oxide, ATO)
CAS 1309-64-4
A flame-retardant synergist and polyester catalyst with opacifying and pigment functions. It is used as a flame-retardant synergist in plastics and textiles, a plastics stabilizer, a polycondensation catalyst (including for PET), an opacifier in glass, ceramics, and enamels, and a pigment.
Flame Retardancy
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Acids & Salts
Ascorbic Acid (Vitamin C)
CAS 50-81-7
Ascorbic acid (Vitamin C) is a water-soluble antioxidant and reducing agent for food preservation, fortification, personal care and analysis.
Preservation
pH Adjustment
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Specialty Additives
Avobenzone (Butyl Methoxydibenzoylmethane, BMDBM)
CAS 70356-09-1
The dominant UV-A organic filter specified in broad-spectrum sun-care formulations. It is used as a UV-A filter and absorber in sunscreen and sun-care products and as a cosmetic UV filter.
UV Protection
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Acids & Salts
Azelaic Acid
CAS 123-99-9
Synthesis Intermediate
Conditioning
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Specialty Additives
BAPO Photoinitiator (Phenylbis(2,4,6-trimethylbenzoyl)phosphine Oxide)
CAS 162881-26-7
Type I bis-acylphosphine-oxide (BAPO) photoinitiator giving deep through-cure of pigmented and white UV coatings (Coatings & Construction) Long-wavelength absorption suits UV-LED and thick-film inks/electronics where surface initiators fail to cure depth (Industrial Manufacturing) Cures thick UV/EB adhesives, gel coats and composite layers with low yellowing…
Crosslinking / Curing
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Mineral Fillers & Pigments
Barium Sulfate (Barite, Barytes)
CAS 7727-43-7
A high-density, inert sulfate that adds weight to drilling muds and body to filled formulations. Its high specific gravity makes it the standard weighting agent in oil- and gas-well drilling fluids and a high-density aggregate for radiation-shielding concrete.
Color / Pigmentation
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Mineral Fillers & Pigments
Bentonite (Montmorillonite Clay)
CAS 1302-78-9
A swelling montmorillonite clay that delivers binding, suspension, and adsorption performance across foundry, drilling, and processing operations. It is used as a binder in foundry molding and core sands, as the principal viscosifier in drilling muds, as an iron-ore pelletizing binder, and as an adsorbent…
Color / Pigmentation
Thickening / Rheology
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Specialty Additives
Benzil dimethyl ketal (2,2-dimethoxy-2-phenylacetophenone)
CAS 24650-42-8
Highly reactive Type I benzil-ketal photoinitiator for fast cure of clear UV coatings and varnishes (Coatings & Construction) Used in UV inks and high-speed line curing (Industrial Manufacturing) Cures clear UV-curable adhesives, composites and unsaturated-polyester systems (Plastics & Polymers)
Crosslinking / Curing
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Specialty Additives
Benzisothiazolinone (BIT)
CAS 2634-33-5
A broad-spectrum isothiazolinone preservative for protecting water-based industrial products from microbial spoilage. It is used as a preservative in water-based products such as paints, pastes, and metalworking and cutting fluids, and as an antimicrobial/slimicide in manufacturing.
Biocidal Action
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Specialty Additives
Benzoin
CAS 119-53-9
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
Benzophenone (BP)
CAS 119-61-9
Classic Type II hydrogen-abstraction photoinitiator, used with amine synergists for surface cure of UV coatings and varnishes (Coatings & Construction) Low-cost initiator for UV/UV-LED inks and overprint varnish (Industrial Manufacturing) Cures UV-curable plastics and adhesives in amine-synergist systems (Plastics & Polymers)
Crosslinking / Curing
Synthesis Intermediate
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Specialty Additives
Benzotriazole (BTA)
CAS 95-14-7
A copper-passivating azole that forms a protective film on copper and brass, specified across cooling-water and metal-protection programs. It protects metal in recirculating water-cooling systems, metalworking fluids, and antifreeze, and also serves as a chemical intermediate and a tarnish-preventing surface treatment.
Biocidal Action
Corrosion Inhibition
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Solvents - Oxygenated
Benzyl Acetate
CAS 140-11-4
A jasmine-note aromatic ester serving both perfumery and cellulose-solvent duty. Established uses include service as a fragrance and flavoring agent and as a solvent for cellulose acetate, cellulose nitrate, and natural and synthetic resins; it also appears in lacquers, polishes, printing inks, and varnish removers.
Solvency
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Solvents - Oxygenated
Benzyl Alcohol
CAS 100-51-6
A versatile aromatic solvent and preservative spanning coatings, cosmetics, and synthesis. Established uses include service as a solvent for dyestuffs, cellulose esters, and waxes; a preservative and viscosity-control agent in cosmetics; a fragrance component; and an intermediate for benzyl esters and ethers.
Preservation
Solvency
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Solvents - Aromatic
Benzyl Chloride
CAS 100-44-7
A benzylating intermediate feeding plasticizer, quaternary, and fine-chemical synthesis. Established uses include the manufacture of benzyl alcohol, phenylacetic acid, benzyl phthalate plasticizers, quaternary ammonium salts, dyes, and perfume and pharmaceutical intermediates.
Solvency
Synthesis Intermediate
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Mineral Fillers & Pigments
Beta-Carotene
CAS 7235-40-7
A carotenoid pigment and provitamin A in a water-dispersible form for food and supplement use. Established uses include service as a yellow/orange colorant for foods, a provitamin A source in nutritional supplements and animal feed, and a cosmetic colorant.
Color / Pigmentation
Preservation
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Amines & Amides
Bis(2-dimethylaminoethyl) ether
CAS 3033-62-3
Powerful blowing catalyst selective for the water-isocyanate (CO2-generating) reaction in PU foam Used in flexible, molded and rigid foam to drive rise/cell-opening Often blended with gelling catalysts to balance the foam reaction profile
Crosslinking / Curing
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Amines & Amides
Bis(2-dimethylaminoethyl) ether in Dipropylene Glycol (70/30)
CAS 3033-62-3
Diluted, easier-to-meter 70% BDMAEE blowing catalyst in dipropylene glycol carrier Drives the water-isocyanate blow reaction in flexible and molded PU foam DPG carrier improves handling and dosing accuracy
Crosslinking / Curing
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Phosphate Esters & Derivatives
Bis(hexamethylene Triamine Penta(methylene Phosphonic Acid)) (BHMTPMPA)
CAS 34690-00-1
A high-charge-density aminophosphonate sequestrant engineered for scale and corrosion control in demanding aqueous systems. Documented uses include service as an anti-scaling agent and corrosion inhibitor, with industrial reporting in oil and gas drilling, extraction, and chemical manufacturing.
Chelation / Sequestration
Scale Inhibition
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Silicone Fluids & Oils
Bis[3-(triethoxysilyl)propyl] Disulfide (TESPD)
CAS 56706-10-6
A disulfide-functional organosilane that couples silica filler into rubber networks during mixing. It is used as an adhesion/cohesion promoter, intermediate, processing aid, and chemical reaction regulator.
Coupling / Adhesion Promotion
Crosslinking / Curing
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Polymers & Resins
Bisphenol A (BPA)
CAS 80-05-7
A diphenol monomer that is the principal building block for polycarbonate and epoxy resins. Its largest use is the manufacture of polycarbonate, followed by epoxy resins (reacted with epichlorohydrin); it is also used in unsaturated polyester, polysulfone, and polyetherimide resins and as a chemical intermediate.
Crosslinking / Curing
Synthesis Intermediate
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Polymers & Resins
Bisphenol F (BPF)
CAS 620-92-8
A low-viscosity bisphenol used to make high-performance epoxy resins and protective coatings. It is used to make epoxy resins and coatings for applications such as lacquers, varnishes, liners, and adhesives.
Crosslinking / Curing
Synthesis Intermediate
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