{"data":{"id":"us/40-cfr-table-2a-to-subpart-e-of-part-59","jurisdiction":"us","citation":"40 CFR Table 2A to Subpart E of Part 59","heading":"Table 2A to Subpart E of Part 59—Reactivity Factors","body":"Compound CAS No. Reactivity factor (g O3/g VOC)\nFormaldehyde 50-00-0 9.46\nGlycerol (1,2,3-Propanetriol) 56-81-5 3.15\nPropylene Glycol 57-55-6 2.58\nEthanol 64-17-5 1.53\nFormic Acid 64-18-6 0.06\nAcetic Acid 64-19-7 0.68\nMethanol 67-56-1 0.67\nIsopropyl Alcohol (2-Propanol) 67-63-0 0.61\nAcetone (Propanone) 67-64-1 0.36\nn-Propanol (n-Propyl Alcohol) 71-23-8 2.50\nn-Butyl Alcohol (Butanol) 71-36-3 2.88\nn-Pentanol (Amyl Alcohol) 71-41-0 2.83\nBenzene 71-43-2 0.72\n1,1,1-Trichloroethane 71-55-6 0.01\nPropane 74-98-6 0.49\nVinyl Chloride 75-01-4 2.83\nAcetaldehyde 75-07-0 6.54\nMethylene Chloride (Dichloromethane) 75-09-2 0.04\nEthylene Oxide 75-21-8 0.03\nIsobutane 75-28-5 1.23\nHFC-152A (1,1-Difluoroethane) 75-37-6 0.02\nPropylene Oxide 75-56-9 0.29\nt-Butyl Alcohol 75-65-0 0.41\nMethyl t-Butyl Ketone 75-97-8 0.65\nIsophorone (3,5,5-Trimethyl-2-Cyclohexenone) 78-59-1 4.63\nIsopentane 78-78-4 1.45\nIsobutanol 78-83-1 2.51\n2-Butanol (s-butyl alcohol) 78-92-2 1.36\nMethyl Ethyl Ketone (2-Butanone) 78-93-3 1.48\nMonoisopropanol Amine (1-Amino-2-Propanol) 78-96-6 5.42\nTrichloroethylene 79-01-6 0.64\nPropionic Acid 79-09-4 1.22\nAcrylic Acid 79-10-7 11.38\nMethyl Acetate 79-20-9 0.07\nNitroethane 79-24-3 0.06\nMethacrylic Acid 79-41-4 18.50\n2-Nitropropane 79-46-9 0.11\na-Pinene (Pine Oil) 80-56-8 4.51\nMethyl Methacrylate 80-62-6 15.61\nDiethyl Phthalate 84-66-2 1.62\nDibutyl Phthalate 84-74-2 1.25\nNaphthalene 91-20-3 3.34\n2-Ethyl-1,3-hexanediol 94-96-2 2.05\nXylene, ortho- 95-47-6 7.64\no-Cresol 95-48-7 2.40\n1,2,4-Trimethylbenzene 95-63-6 8.87\n3-Pentanone 96-22-0 1.24\nMethyl Ethyl Ketoxime (Ethyl Methyl Ketone Oxime) 96-29-7 1.58\ngamma-Butyrolactone 96-48-0 0.96\nEthyl Lactate 97-64-3 2.48\nIsobutyl Isobutyrate 97-85-8 0.60\nIsobutyl Methacrylate 97-86-9 8.62\nButyl Methacrylate 97-88-1 8.70\nTert-butyl benzene 98-06-6 1.95\nBenzotrifluoride 98-08-8 0.29\nPCBTF (p-Trifluoromethyl-Cl-Benzene) 98-56-6 0.13\nCumene (Isopropyl Benzene) 98-82-8 2.52\na-Methyl Styrene 98-83-9 1.53\nEthyl Benzene 100-41-4 3.04\nStyrene 100-42-5 1.73\nBenzyl Alcohol 100-51-6 5.11\nBenzaldehyde 100-52-7 0.00\nTriethanolamine 102-71-6 4.21\n2-Ethyl-Hexyl Acetate 103-09-3 0.66\n2-Ethyl-Hexyl Acrylate 103-11-7 2.52\n2-Ethyl-1-Hexanol (Ethyl Hexyl Alcohol) 104-76-7 2.00\nEthyl Propionate 105-37-3 0.77\ns-Butyl Acetate 105-46-4 1.32\nDiethyl Carbonate 105-58-8 0.71\nn-Propyl Propionate 106-36-5 0.84\nXylene, para- 106-42-3 5.84\np-Dichlorobenzene 106-46-7 0.18\nDimethyl Succinate 106-65-0 0.23\n1,2-Epoxybutane (Ethyl Oxirane) 106-88-7 0.91\nn-Propyl Bromide 106-94-5 0.42\nButane 106-97-8 1.15\n1,3-Butadiene 106-99-0 12.61\nEthylene Glycol 107-21-1 3.13\n2-Methyl-2,4-Pentanediol 107-41-5 1.45\nHexamethyldisiloxane 107-46-0 0.00\nIsohexane Isomers 107-83-5 1.50\nMethyl n-Propyl Ketone (2-Pentanone) 107-87-9 2.81\nPropylene Glycol Monomethyl Ether (1-Methoxy-2-Propanol) 107-98-2 2.44\nn,n-Dimethylethanolamine 108-01-0 5.62\n1-Nitropropane 108-03-2 0.22\nVinyl Acetate 108-05-4 3.20\nMethyl Isobutyl Ketone 108-10-1 3.88\nIsopropyl Acetate 108-21-4 1.07\nPropylene Carbonate (4-Methyl-1,3-Dioxolan-2one) 108-32-7 0.28\nXylene, meta- 108-38-3 9.75\nPropylene Glycol Monomethyl Ether Acetate (1-Methoxy-2-Propyl Acetate) 108-65-6 1.70\n1,3,5-Trimethyl Benzene 108-67-8 11.76\nDi-Isobutyl Ketone (2,6-Dimethyl-4-Heptanone) 108-83-8 2.68\nMethylcyclohexane 108-87-2 1.70\nToluene 108-88-3 4.00\nMonochlorobenzene 108-90-7 0.32\nCyclohexanol 108-93-0 1.95\nCyclohexanone 108-94-1 1.35\nn-Butyl Butyrate 109-21-7 1.08\nPropyl Acetate 109-60-4 0.78\nPentane 109-66-0 1.31\nEthylene Glycol Monomethyl Ether (2-Methoxyethanol) 109-86-4 2.93\nDimethoxy Methane 109-87-5 0.94\nTetrahydrofuran 109-99-9 4.31\nMethyl Isoamyl Ketone (5-Methyl-2-Hexanone) 110-12-3 2.41\nIsobutyl Acetate 110-19-0 0.62\nMethyl Amyl Ketone 110-43-0 2.36\nHexane 110-54-3 1.24\nn-Propyl Formate 110-74-7 0.78\n2-Ethoxyethanol 110-80-5 3.71\nCyclohexane 110-82-7 1.25\nMorpholine 110-91-8 1.98\nDipropylene Glycol 110-98-5 2.31\nEthylene Glycol Monoethyl Ether Acetate (2-Ethoxyethyl Acetate) 111-15-9 1.84\nDiethylenetriamine 111-40-0 15.53\nDiethanolamine 111-42-2 2.47\nDiethylene Glycol 111-46-6 3.35\nn-Octane 111-65-9 0.90\n2-Butoxy-1-Ethanol (Ethylene Glycol Monobutyl Ether) 111-76-2 2.90\nDiethylene Glycol Methyl Ether (2-(2-Methoxyethoxy) Ethanol) 111-77-3 2.66\nn-Nonane 111-84-2 0.78\n2-(2-Ethoxyethoxy) Ethanol 111-90-0 3.26\nEthylene Glycol Monobutyl Ether Acetate (2-Butoxyethyl Acetate) 112-07-2 1.62\n2-(2-Ethoxyethoxy) Ethyl Acetate 112-15-2 1.48\n2-(2-Butoxyethoxy)-Ethanol 112-34-5 2.39\nDimethyl Ether 115-10-6 0.81\nTriethylamine 121-44-8 3.84\n2-Phenoxyethanol; Ethylene Glycol Phenyl Ether 122-99-6 4.49\nDiacetone Alcohol 123-42-2 0.60\n2,4-Pentanedione 123-54-6 1.01\nButanal 123-72-8 5.97\nButyl Acetate, n 123-86-4 0.83\n3-Methyl-Butyl Acetate 123-92-2 1.09\n2-(2-Butoxyethoxy) Ethyl Acetate 124-17-4 1.38\n2-Amino-2-Methyl-1-Propanol 124-68-5 0.25\nPerchloroethylene 127-18-4 0.03\nEthanolamine 141-43-5 6.81\nEthyl acetate 141-78-6 0.63\nHeptane 142-82-5 1.07\nn-Hexyl Acetate (Hexyl Acetate) 142-92-7 0.69\n2-Ethyl Hexanoic Acid 149-57-5 3.32\ntrans-1,2-Dichloroethene 156-60-5 1.70\n1,2,3-Trimethyl Benzene 526-73-8 11.97\nt-Butyl Acetate 540-88-5 0.18\nMethyl Isobutyrate 547-63-7 0.61\nMethyl Lactate 547-64-8 2.67\nMethyl Propionate 554-12-1 0.66\n1,2-Butanediol 584-03-2 2.52\nn-Butyl Propionate 590-01-2 0.84\nMethyl n-Butyl Ketone (2-Hexanone) 591-78-6 3.14\nDimethyl carbonate 616-38-6 0.06\n2-Methyl-1-Butyl Acetate 624-41-9 1.08\nn-Pentyl Propionate 624-54-4 0.71\nEthyl Isopropyl Ether 625-54-7 3.74\nDimethyl Adipate 627-93-0 1.80\nMethyl n-Butyl Ether 628-28-4 3.15\nAmyl Acetate (Pentyl Ethanoate, Pentyl Acetate) 628-63-7 0.84\nEthyl n-Butyl Ether 628-81-9 3.48\nEthyl t-Butyl Ether 637-92-3 2.01\n1,3-Dioxolane 646-06-0 4.96\nEthyl-3-Ethoxypropionate 763-69-9 3.58\nMethyl Pyrrolidone (n-Methyl-2-Pyrrolidone) 872-50-4 2.41\nDimethyl Gluterate 1119-40-0 0.42\nC8 Disubstituted Benzenes 1330-20-7 7.76\nEthylene Glycol 2-Ethylhexyl Ether [2-(2-Ethylhexyloxy) Ethanol] 1559-35-9 1.55\nPropylene Glycol Monopropyl Ether (1-Propoxy-2-Propanol) 1569-01-3 2.68\nPropylene Glycol Monoethyl Ether (1-Ethoxy-2-Propanol) 1569-02-4 3.09\n2-Methoxy-1-Propanol 1589-47-5 3.01\nMethyl t-Butyl Ether 1634-04-4 0.73\ntrans-1,3,3,3-tetrafluoropropene (HFO-1234ze) 1645-83-6 0.10\nEthylcyclohexane 1678-91-7 1.47\nIsoamyl Isobutyrate 2050-01-3 0.82\n2-Propoxy-ethanol (Ethylene Glycol Monopropyl Ether) 2807-30-9 3.30\nn-Butoxy-2-Propanol 5131-66-8 2.72\nd-Limonene (Dipentene or Orange Terpene) 5989-27-5 4.55\n2,2,4-trimethyl-1,3-pentanediol diisobutyrate 6846-50-0 0.38\nDipropylene Glycol Methyl Ether Isomer (2-[2Methoxypropoxy]-1-Propanol) 13588-28-8 2.58\nC9 Styrenes 25013-15-4 1.53\nTexanol (1,3 Pentanediol, 2,2,4-Trimethyl, 1-Isobutyrate) 25265-77-4 0.81\nIsodecyl Alcohol (8-Methyl-1-Nonanol) 25339-17-7 1.06\nTripropylene Glycol Monomethyl Ether 25498-49-1 1.92\nGlycol Ether DPNB (1-(2-Butoxy-1-Methylethoxy) 2-Propanol) 29911-28-2 1.83\nDipropylene Glycol Monomethyl Ether (mixture of isomers) 34590-94-8 2.58\nPropylene Glycol t-Butyl Ether (1-tert-Butoxy-2-Propanol) 57018-52-7 1.61\n2-Methoxy-1-Propyl Acetate 70657-70-4 1.12\nDipropylene Glycol Methyl Ether Acetate Isomers 88917-22-0 1.45\nOxo-Heptyl Acetate 90438-79-2 0.83\n2-tert-Butoxy-1-Propanol 94023-15-1 1.81\ntrans-1-chloro-3,3,3-trifluoropropene (HFO-1233zdE) 102687-65-0 0.04\nOxo-Octyl Acetate 108419-32-5 0.81","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER C—AIR PROGRAMS","PART 59—NATIONAL VOLATILE ORGANIC COMPOUND EMISSION STANDARDS FOR CONSUMER AND COMMERCIAL PRODUCTS","Subpart E—National Volatile Organic Compound Emission Standards for Aerosol Coatings"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"7ee51089ee362694b257b25531493d8db0e56550c480e39918d741194856638f","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-table-1-to-subpart-e-of-part-59","next":"us/40-cfr-table-2b-to-subpart-e-of-part-59"},"notice":"GroundRules: Original legal text. Not legal advice."}