XU: Exempt from Chemical Data Reporting
Indicates a substance exempt from reporting under the Chemical Data Reporting Rule, (40 CFR 711).
20,333 substances carry it in the July 2026 release, of which 9,452 are designated active.
What it obliges
Nothing, for this substance, in the CDR census. The exemption belongs to the chemical and not to your company, so every other substance you make above the reporting threshold still counts.
What this flag does not establish
Says nothing about hazard, about commercial activity status, or about obligations under any other part of TSCA.
Substances carrying XU
Showing 100 of 20,333, active substances first. Search the full Inventory for a specific one.
| CAS number | Substance | Status | Other flags |
|---|---|---|---|
| 119209-70-0 | Rosin, polymer with formaldehyde, glycerol and 4-(1,1,3,3-tetramethylbutyl)phenol | Active | FRI PMN Y1 UVCB |
| 100486-94-0 | Hexanedioic acid, polymer with N1-(2-aminoethyl)-1,2-ethanediamine, 2-butene-1,4-diol, 1,6-diisocyanatohexane, 1,2-ethanediol, 1,3-isobenzofurandione, 2-methyloxirane, oxirane and sodium sulfite (1:1), 2-(2-butoxyethoxy)ethanol-blocked | Active | FRI PMN UVCB |
| 100916-02-7 | Castor oil, polymer with polymethylenepolyphenylene isocyanate and polypropylene glycol | Active | FRI PMN UVCB |
| 101316-90-9 | Ethene, 1,1,2,2-tetrafluoro-, oxidized, polymd., reduced, Me esters, reduced, acrylates | Active | FRI PMN UVCB |
| 102322-80-5 | 2-Propenoic acid, 2-methyl-, methyl ester, homopolymer, reaction products with ammonia | Active | FRI PMN UVCB |
| 102343-97-5 | Benzene, ethenyl-, homopolymer, sulfonated | Active | FRI PMN UVCB |
| 102763-23-5 | Propanedioic acid, 1,3-diethyl ester, reaction products with 1,6-diisocyanatohexane homopolymer, ethyl acetoacetate, 2-ethyl-1,3-hexanediol and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane homopolymer | Active | FRI PMN UVCB |
| 102782-61-6 | Siloxanes and Silicones, di-Me, 3-hydroxypropyl Me | Active | FRI PMN UVCB |
| 102782-92-3 | Siloxanes and Silicones, 3-[(2-aminoethyl)amino]propyl Me, di-Me, methoxy-terminated | Active | FRI PMN UVCB |
| 102782-93-4 | Siloxanes and Silicones, di-Me, lauryl Me, Me myristyl | Active | FRI PMN UVCB |
| 102782-97-8 | Siloxanes and Silicones, di-Me, 3-(2-oxiranylmethoxy)propyl group-terminated | Active | FRI PMN UVCB |
| 102900-02-7 | Alcohols, C6-10, ethoxylated propoxylated, fumarated, sodium salts | Active | FRI PMN UVCB |
| 102900-03-8 | Oxirane, 2-methyl-, polymer with oxirane, ether with 1,2-propanediol (2:1), polymer with 1,3-diisocyanatomethylbenzene, nonylphenol-blocked | Active | FRI PMN UVCB |
| 103170-26-9 | Cyclohexane, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethyl-, homopolymer, Me Et ketone oxime-blocked | Active | FRI PMN UVCB |
| 103621-98-3 | Fatty acids, soya, polymers with benzoic acid, glycerol, pentaerythritol, phthalic anhydride and tall-oil fatty acids | Active | FRI Y1 UVCB |
| 104133-73-5 | Amines, tallow alkyl, reaction products with bisphenol A diglycidyl ether, ethoxylated | Active | FRI PMN UVCB |
| 104376-75-2 | Poly(oxy-1,2-ethanediyl), .alpha.-phenyl-.omega.-hydroxy-, styrenated | Active | FRI PMN UVCB |
| 109037-68-5 | Amines, N,N'-ditallow alkyl[1,2-ethanediylbis(imino-3,1-propanediyl)]di-, ethoxylated propoxylated | Active | FRI PMN UVCB |
| 109037-71-0 | Siloxanes and Silicones, 3-aminopropyl Me, lauryl Me, Me 2-phenylpropyl | Active | FRI PMN UVCB |
| 109961-31-1 | Fatty acids, C18-unsatd., dimers, polymers with dodecylphenol, formaldehyde, maleic anhydride, pentaerythritol and rosin | Active | FRI Y1 UVCB |
| 109961-32-2 | Fatty acids, dehydrated castor-oil, polymers with benzoic acid, glycerol, pentaerythritol, phthalic anhydride and soya fatty acids | Active | FRI Y1 UVCB |
| 109961-35-5 | Fatty acids, tall-oil, polymers with adipic acid, isophthalic acid, neopentyl glycol, trimellitic anhydride and trimethylolethane | Active | FRI Y1 UVCB |
| 109961-36-6 | Fatty acids, tall-oil, polymers with benzoic acid, isophthalic acid, linoleic acid and pentaerythritol | Active | FRI Y1 UVCB |
| 109961-41-3 | Siloxanes and Silicones, di-Me, polymers with Ph silsesquioxanes, hydroxy-terminated | Active | FRI PMN UVCB |
| 109961-42-4 | 2-Propenenitrile, polymer with 1,2,4-triethenylcyclohexane, hydrolyzed | Active | FRI PMN UVCB |
| 109981-10-4 | 2-Propenoic acid, 2-methyl-, C12-15-alkyl esters, polymers with N-[3-(dimethylamino)propyl]-2-methyl-2-propenamide and Me methacrylate | Active | FRI PMN UVCB |
| 110015-93-5 | 2-Propenoic acid, 2-methyl-, C12-20-alkyl esters, polymers with isodecyl methacrylate, Me methacrylate and vinylpyrrolidone | Active | FRI PMN UVCB |
| 110475-02-0 | Siloxanes and Silicones, di-Me, [[(3-aminopropyl)dimethoxysilyl]oxy]-terminated | Active | FRI PMN UVCB |
| 110475-03-1 | Siloxanes and Silicones, di-Me, Me 3-[[(1-oxooctadecyl)amino]propyl | Active | FRI PMN UVCB |
| 110475-04-2 | Siloxanes and Silicones, di-Me, Me 3,3,3-trifluoropropyl, hydroxy- and vinyl group-terminated | Active | FRI PMN UVCB |
| 110615-50-4 | 1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 1,1'-methylenebis[4-isocyanatobenzene], cresol-, phenol- and xylenol-blocked | Active | FRI PMN UVCB |
| 110720-64-4 | Siloxanes and Silicones, 3-aminopropyl Me, Me stearyl | Active | FRI PMN UVCB |
| 110775-80-9 | Siloxanes and Silicones, di-Me, di-Ph, polymers with Me Ph silsesquioxanes, hydroxy-terminated | Active | FRI PMN UVCB |
| 111353-95-8 | Fatty acids, C18-unsatd., dimers, polymers with adipic acid, ethylene glycol, isophthalic acid, neopentyl glycol, propylene glycol and terephthalic acid | Active | FRI Y1 UVCB |
| 113221-69-5 | 2-Propenoic acid, ethyl ester, polymer with ethenyl acetate and 2,5-furandione, hydrolyzed | Active | FRI PMN UVCB |
| 113355-05-8 | Siloxanes and Silicones, di-Me, polymers with Me Ph silsesquioxanes, hydroxy-terminated | Active | FRI PMN UVCB |
| 114553-41-2 | Siloxanes and Silicones, di-Me, 3-(2-hydroxyethoxy)propyl group-terminated, polymers with adipic acid, 1,3-butanediol, 1,4-butanediol, 1,6-hexanediol and 1,1'-methylenebis[4-isocyanatobenzene] | Active | FRI PMN UVCB |
| 114553-48-9 | Propanoic acid, 3-hydroxy-2-(hydroxymethyl)-2-methyl-, polymer with 1,6-diisocyanatohexane, Me Et ketone oxime-blocked, compds. with triethylamine | Active | FRI PMN UVCB |
| 114793-01-0 | 1,2-Ethanediol, polymer with 1,3-diisocyanatomethylbenzene, 2-ethyl-1-hexanol- and methanol-blocked | Active | FRI PMN UVCB |
| 115001-58-6 | Acetic acid ethenyl ester, homopolymer, hydrolyzed, reaction products with 4-methylene-2-oxetanone | Active | FRI PMN UVCB |
| 115019-51-7 | Fatty acids, C8-18 and C18-unsatd., diesters with polyethylene glycol ether with bisphenol A (2:1) | Active | FRI PMN UVCB |
| 115271-30-2 | Hexanedioic acid, polymer with 1,4-butanediol, 1,6-diisocyanatohexane, 1,2-ethanediamine, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, .alpha.,.alpha.'-[(1-methylethylidene)di-4,1-phenylene]bis[.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)]] and 2-methyloxirane, polyethylene-polypropylene glycol mono-Bu ether-blocked | Active | FRI PMN UVCB |
| 115323-07-4 | Fatty acids, tall-oil, polymers with benzoic acid, Me methacrylate, pentaerythritol, phthalic anhydride, styrene and trimethylolethane | Active | FRI PMN UVCB |
| 115487-49-5 | Siloxanes and Silicones, Me hydrogen, Me Ph, (dimethylsilyl)oxy-terminated | Active | FRI PMN UVCB |
| 115487-50-8 | Cashew, nutshell liq., polymer with epichlorohydrin and formaldehyde | Active | FRI PMN UVCB |
| 115606-51-4 | Siloxanes and Silicones, 3-aminopropyl Me, di-Me, Me 3-[(1-oxooctadecyl)amino]propyl | Active | FRI PMN UVCB |
| 115606-52-5 | Siloxanes and Silicones, di-Me, lauryl Me, Me 3-mercaptopropyl, Me 2-phenylpropyl | Active | FRI PMN UVCB |
| 116597-52-5 | Fatty acids, tall-oil, polymers with Me methacrylate, pentaerythritol, phthalic anhydride, soybean oil, styrene and trimethylolpropane | Active | FRI Y1 UVCB |
| 116597-55-8 | Fatty acids, dehydrated castor-oil, polymers with benzoic acid, pentaerythritol, phthalic anhydride and tall-oil fatty acids | Active | FRI Y1 UVCB |
| 116810-47-0 | Siloxanes and Silicones, di-Me, 3-hydroxypropyl group-terminated, diesters with 2-oxepanone homopolymer acetate | Active | FRI PMN UVCB |
| 117500-34-2 | 1,3-Benzenedicarboxylic acid, polymer with 2-ethyl-2-(hydroxymethyl)-1,3-propanediol, 1,6-hexanediol, 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane and 2,2,4(or 2,4,4)-trimethyl-1,6-hexanediol, acetone oxime-blocked | Active | FRI PMN UVCB |
| 117584-36-8 | Poly(oxy-1,2-ethanediyl), .alpha.,.alpha.'-phosphinicobis[.omega.-hydroxy-, di-C12-15-alkyl ethers | Active | FRI PMN UVCB |
| 117584-37-9 | Fatty acids, sunflower-oil, polymers with benzoic acid, pentaerythritol, phthalic anhydride and trimethylolpropane | Active | FRI PMN UVCB |
| 118439-11-5 | 1,2-Propanediol, polymer with 2,4-diisocyanato-1-methylbenzene and 2-methyloxirane, Me Et ketone oxime-blocked | Active | FRI PMN UVCB |
| 119040-02-7 | Siloxanes and Silicones, di-Me, Me vinyl, [(triethenylsilyl)oxy]-terminated | Active | FRI PMN UVCB |
| 119185-04-5 | Fatty acids, C18-unsatd., dimers, polymers with dicyclopentadiene, fumaric acid, maleic anhydride, rosin and soybean oil | Active | FRI PMN UVCB |
| 119185-05-6 | 1,3-Propanediol, 2-ethyl-2-(hydroxymethyl)-, polymer with 1,3-diisocyanatomethylbenzene and .alpha.-hydro-.omega.-hydroxypoly(oxy-1,4-butanediyl), caprolactam-blocked | Active | FRI PMN UVCB |
| 119185-06-7 | Poly[oxy(methyl-1,2-ethanediyl)], .alpha.,.alpha.',.alpha.''-1,2,3-propanetriyltris[.omega.-hydroxy-, polymer with .alpha.-hydro-.omega.-hydroxypoly[oxy(methyl-1,2-ethanediyl)] and 1,1'-methylenebis[4-isocyanatobenzene], Me Et ketone oxime-blocked | Active | FRI PMN UVCB |
| 119275-52-4 | Siloxanes and Silicones, di-Me, Me trifluoropropyl, hydroxy-terminated | Active | FRI PMN UVCB |
| 119275-53-5 | 1-Butene, polymer with 2-butene and 2-methyl-1-propene, epoxidized | Active | FRI PMN UVCB |
| 119345-05-0 | Phenol, polymer with 3a,4,7,7a-tetrahydro-4,7-methano-1H-indene, glycidyl ether | Active | FRI PMN UVCB |
| 119345-06-1 | Phenol, polymer with 1,3-cyclopentadiene, 2-methyl-1,3-butadiene and 3a,4,7,7a-tetrahydro-4,7-methano-1H-indene, glycidyl ether | Active | FRI PMN UVCB |
| 122335-03-9 | Soybean oil, polymer with diethylene glycol and phthalic anhydride | Active | FRI PMN UVCB |
| 124578-11-6 | 2,5-Furandione, polymers with hydrogenated butadiene-styrene polymer | Active | FRI PMN UVCB |
| 1443997-96-3 | Poly(oxy-1,2-ethanediyl), .alpha.-sulfo-.omega.-phenoxy-, 1-phenylethyl and 1-propen-1-yl derivs., ammonium salts | Active | PMN UVCB |
| 152143-20-9 | 2-Propenamide, reaction products with formaldehyde-melamine polymer Bu 2-ethylhexyl Me ethers | Active | FRI PMN UVCB |
| 161308-15-2 | Phenol, 4,4'-(1-methylethylidene)bis-, polymer with 2-(chloromethyl)oxirane, [1,1'-biphenyl]-4-yl ethers | Active | PMN UVCB |
| 2007163-32-6 | 1,6,10-Dodecatriene, 7,11-dimethyl-3-methylene-, (6E)-, homopolymer, 2-hydroxyethyl-terminated | Active | PE1 PMN UVCB |
| 2133853-12-8 | Hexanedioic acid, polymer with 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane, 2,2'-oxybis[ethanol] and 1,2-propanediol, 3,5-bis(1,1-dimethylethyl)-4-hydroxybenzenemethanol-blocked | Active | PMN UVCB |
| 2416467-25-7 | Isocyanic acid, polymethylenepolyphenylene ester, 2-butoxyethanol- and caprolactam-blocked | Active | FRI PMN UVCB |
| 2728655-38-5 | Amides, from hydrogenated tallow and tetraethylenepentamine, polymers with polyethylene glycol bis(3-chloro-2-hydroxypropyl) ether | Active | FRI PMN UVCB |
| 2768948-43-0 | Amines, polyethylenepoly-, reaction products with 1,3-dioxolan-2-one and succinic anhydride polybutenyl derivs. | Active | FRI PMN UVCB |
| 2919696-28-7 | Titanium, bis(2,4-pentanedionato-.kappa.O2,.kappa.O4)bis(2-propanolato)-, reaction products with 1-ethenyl-1H-imidazole and hydrogenated 1-decene homopolymer | Active | PMN UVCB |
| 2919696-30-1 | Molybdenum, borate neodecanoate oxo complexes, reaction products with 1-ethenyl-1H-imidazole and hydrogenated 1-decene homopolymer | Active | PMN UVCB |
| 29497-14-1 | 2-Propenoic acid, 2-methyl-, butyl ester, polymer with butyl 2-propenoate and ethenylbenzene | Active | FRI PMN Y1 |
| 2999740-08-6 | 3-Octanone, reaction products with N1-(3-aminopropyl)-1,3-propanediamine-5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane-propylene glycol polymer | Active | FRI PMN UVCB |
| 2999740-09-7 | Benzene, diethenyl-, polymer with ethenylbenzene, chlorosulfonated | Active | FRI PMN UVCB |
| 3001208-44-9 | Tall oil, polymer with fumaric acid, glycerol, phthalic anhydride and sorbitol | Active | FRI PMN UVCB |
| 3001208-45-0 | Rosin, polymer with p-tert-butylphenol, formaldehyde, fumaric acid, glycerol, phthalic anhydride, sorbitol and tall oil | Active | FRI PMN UVCB |
| 3001208-46-1 | Linseed oil, polymer with fumaric acid, glycerol, phthalic anhydride, sorbitol and tall oil | Active | FRI PMN UVCB |
| 3001208-48-3 | 2-Propenoic acid, 2-hydroxy-3-phenoxypropyl ester, reaction products with 1,6-diisocyanatohexane-TDI polymer and 3-(trimethoxysilyl)-1-propanethiol | Active | FRI PMN UVCB |
| 3001208-50-7 | Neodecanoic acid, 2-oxiranylmethyl ester, reaction products with diethanolamine and N1,N1-diethyl-1,3-propanediamine-hexamethylenediamine-polypropylene glycol diglycidyl ether polymer | Active | FRI PMN UVCB |
| 3001208-51-8 | Soybean oil, polymer with glycerol, pentaerythritol, TDI and 3a,4,7,7a-tetrahydro-1,3-isobenzofurandione | Active | FRI PMN UVCB |
| 3001208-52-9 | Silsesquioxanes, Me Pr, hydrolyzed, potassium salts | Active | FRI PMN UVCB |
| 3001208-53-0 | Rosin, polymer with fumaric acid, pentaerythritol, phthalic anhydride, soybean oil and tung oil | Active | FRI PMN UVCB |
| 3001208-92-7 | Rosin, polymer with p-tert-butylphenol, formaldehyde, fumaric acid, glycerol, phthalic anhydride, sorbitol and sunflower oil | Active | FRI PMN UVCB |
| 3001210-02-9 | Tall oil, polymer with glycerol, maleic anhydride and pentaerythritol | Active | FRI PMN UVCB |
| 3001210-58-5 | Fatty acids, tall-oil, polymers with acrylic acid, allyl alc., bisphenol A, epichlorohydrin and styrene | Active | FRI PMN UVCB |
| 3001210-59-6 | Linseed oil, polymer with p-tert-butylphenol, formaldehyde, glycerol, phenol, phthalic anhydride and tall oil | Active | FRI PMN UVCB |
| 3001210-60-9 | Propane, 1,2,3-trichloro-, polymer with 1,1'-[methylenebis(oxy)]bis[2-chloroethane] and sodium sulfide (Na2(Sx)), reduced, glycidyl thioethers | Active | FRI PMN UVCB |
| 3011676-93-7 | 2-Propenoic acid, 2-methyl-, dodecyl ester, polymer with butyl 2-propenoate, ethenylbenzene, 2-oxiranylmethyl 2-methyl-2-propenoate and 2-propenoic acid, reaction products with 2-oxepanone and 1-piperazineethanamine | Active | FRI PMN UVCB |
| 3011678-38-6 | Fatty acids, soya, polymers with isophthalic acid, pentaerythritol, trimellitic anhydride and trimethylolpropane | Active | FRI Y1 UVCB |
| 3011678-93-3 | Soybean oil, polymer with glycerol, Me .alpha.-D-glucopyranoside, TDI and trimethylolpropane | Active | FRI PMN UVCB |
| 3011678-95-5 | Tall oil, polymer with p-tert-butylphenol, formaldehyde, fumaric acid, glycerol, phenol, phthalic anhydride and sorbitol | Active | FRI PMN UVCB |
| 3011678-97-7 | 2-Propenoic acid, 2-methyl-, polymer with butyl 2-methyl-2-propenoate, butyl 2-propenoate, ethenylbenzene and 2-hydroxypropyl 2-methyl-2-propenoate, reaction products with 1,6-diisocyanatohexane homopolymer and 3-ethoxy-1-propanamine | Active | FRI PMN UVCB |
| 3011678-98-8 | Fatty acids, tall-oil, polymers with bisphenol A, bisphenol A diglycidyl ether, Ph Pr silsesquioxanes and rosin | Active | FRI PMN UVCB |
| 3011678-99-9 | Fatty acids, tall-oil, polymers with glycidyl neodecanoate, hexahydro-1,3-isobenzofurandione and trimethylolpropane | Active | FRI PMN UVCB |
| 3011679-00-5 | 2-Pentanone, 4-methyl-, reaction products with N1-(3-aminopropyl)-1,3-propanediamine and 5-isocyanato-1-(isocyanatomethyl)-1,3,3-trimethylcyclohexane-propylene glycol polymer | Active | FRI PMN UVCB |
| 3011679-01-6 | 2-Propenoic acid, 2-methyl-, polymer with 2-ethylhexyl 2-propenoate, 2-hydroxyethyl 2-methyl-2-propenoate and methyl 2-methyl-2-propenoate, reaction products with 1,6-diisocyanatohexane homopolymer and 3-ethoxy-1-propanamine | Active | FRI PMN UVCB |
| 3011679-02-7 | 2-Propenoic acid, 2-methyl-, telomer with butyl 2-propenoate, ethenylbenzene, 2-hydroxyethyl 2-methyl-2-propenoate and 1-octanethiol, reaction products with 1,6-diisocyanatohexane homopolymer and 3-ethoxy-1-propanamine | Active | FRI PMN UVCB |
From the EPA non-confidential TSCA Inventory, July 2026 release. EPA also maintains a confidential portion it does not publish, so a substance absent from this data is not thereby unflagged.