Sec.22a-450-6. Appendix

Appendix A to the Release Reporting Regulations

List of Materials of Special Concern

NAME (Search CAS # for Alternate Chemical Names)	CAS#
(E)-Crotonaldehyde	123-73-9
1,2-Dibromo-3-chloropropane	96-12-8
1,3-bis(2-Isocyanato-2-Propyl)Benzene	2778-42-9
1,4-Dichloro-2-butene	764-41-0
1-Chloro-2,4-Dinitrobenzene	97-00-7
2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD)	1746-01-6
2-Acetylaminofluorene	53-96-3
2-Chloro-1,1,1,4,4,4-hexafluoro-2-butene	400-44-2
2-Diisopropylaminoethyl chloride hydrochloride	4261-68-1
2-Methylfuran	534-22-5
3,3’-Dichlorobenzidine	91-94-1
3-Bromopropyne	106-96-7
4-Aminobiphenyl	92-67-1
4-Aminophenol	123-30-8
7,12-Dimethylbenz[a]anthracene	57-97-6
Acetaldehyde	75-07-0
Acetic acid	64-19-7
Acetone cyanohydrin	75-86-5
Acetyl peroxide	110-22-5
Acrolein	107-02-8
Acrylonitrile	107-13-1
Acryloyl chloride	814-68-6
Aldrin	309-00-2
Allyl alcohol	107-18-6
Allyl chlorocarbonate	2937-50-0
Allylamine	107-11-9
Aluminum phosphide	20859-73-8
Ammonia	7664-41-7
Ammonium perchlorate	7790-98-9
Antimony pentafluoride	7783-70-2
Arsenic	7440-38-2
Arsenic acid	7778-39-4
Arsenic disulfide	1303-32-8
Arsenic pentoxide	1303-28-2
Arsenic trioxide	1327-53-3
Arsenic trisulfide	1303-33-9
Arsenous trichloride	7784-34-1
Arsine	7784-42-1
Arsine, difluorophenyl -	368-97-8
Azaserine	115-02-6
Azinphos-methyl	86-50-0
Aziridine	151-56-4
Azocyclotin	41083-11-8
Barban	101-27-9
Bendiocarb	22781-23-3
Bendiocarb phenol	22961-82-6
Benzene	71-43-2
Benzenearsonic acid	98-05-5
Benzidine	92-87-5
Benzo[a]pyrene	50-32-8
Benzo[b]fluoranthene	205-99-2
Benzoic acid	65-85-0
Benzotrichloride	98-07-7
Beryllium chloride	7787-47-5
Beryllium fluoride	7787-49-7
Beryllium nitrate	13597-99-4
Beta-Hexachlorocyclohexane	319-85-7
Beta-Propiolactone	57-57-8
Bis (trimethoxysilyl)ethane	18406-41-2
Bis(chloromethyl) ketone	534-07-6
Bis(trifluoromethyl)disulfide	372-64-5
Boron trichloride	10294-34-5
Boron trifluoride	7637-07-2
Brodifacoum	56073-10-0
Bromadiolone	28772-56-7
Bromine	7726-95-6
Bromine Pentafluoride	7789-30-2
Bromine trifluoride	7787-71-5
Butadiene	106-99-0
Cacodylic acid	75-60-5
Cadmium	7440-43-9
Calcium arsenate	7778-44-1
Carbamic acid, methyl-, O-(((2,4-dimethyl-1,3-dithiolan-2-yl)methylene)amino)-	26419-73-8
Carbamic acid, N- 2-chloroethyl-N-nitroso -, methyl ester	13589-15-6
Carbamothioic acid, dipropyl-, S-(phenylmethyl) ester	52888-80-9
Carbofuran	1563-66-2
Carbofuran phenol	1563-38-8
Carbon disulfide	75-15-0
Carbon monoxide	630-08-0
Carbosulfan	55285-14-8
Chlordane	57-74-9
Chlorethoxyfos	54593-83-8
Chlorfenvinfos	470-90-6
Chloride trifluoride	7790-91-2
Chlorine	7782-50-5
Chlorine dioxide	10049-04-4
Chloroacetic acid	79-11-8
Chlorodinitrobenzenes	25567-67-3
Chloroform	67-66-3
Chloromethyl ether	542-88-1
Chloropicrin	76-06-2
Chlorosulfonic acid	7790-94-5
Chlorpyrifos	2921-88-2
Chromic chloride	10025-73-7
Cobalt carbonyl	10210-68-1
Colchicine	64-86-8
Coumaphos	56-72-4
Crotonaldehyde	4170-30-3
Cumene hydroperoxide	80-15-9
Cyanogen	460-19-5
Cyanogen bromide	506-68-3
Cyanogen chloride	506-77-4
Cyanuric fluoride	675-14-9
DDT	50-29-3
delta-BHC	319-86-8
Diazinon	333-41-5
Dibenz[a,h]anthracene	53-70-3
Diborane	19287-45-7
Dichlone	117-80-6
Dichloroethyl ether	111-44-4
Dichloromethysilane	75-54-7
Dichlorosilane	4109-96-0
Dichlorvos	62-73-7
Dieldrin	60-57-1
Diepoxybutane	1464-53-5
Diethyl chlorophosphate	814-49-3
Diethyl p-nitrophenyl phosphate	311-45-5
Diethylarsine	692-42-2
Diethylstilbestrol	56-53-1
Digoxin	20830-75-5
Diisopropyl fluorophosphate	55-91-4
Dimefox	115-26-4
Dimethoate	60-51-5
Dimethyl hydrazine	57-14-7
Dimethyl sulfate	77-78-1
Dimethylamine	124-40-3
Dimethylcarbamoyl chloride	79-44-7
Dimethyldichlorosilane	75-78-5
Dimethyl-p-phenylenediamine	99-98-9
Dimetilan	644-64-4
Dinitrocresol	534-52-1
Diphacinone	82-66-6
Disulfoton	298-04-4
Di-tert-butyl peroxide	110-05-4
Ebufos	95465-99-9
Emetine, dihydrochloride	316-42-7
Endosulfan	115-29-7
Endosulfan sulfate	1031-07-8
Endrin	72-20-8
Endrin aldehyde	7421-93-4
Epichlorohydrin	106-89-8
Ethanimidothioic acid, 2-(dimethylamino)-N-hydroxy-2-oxo-, methyl ester	30558-43-1
Ethanol, 2,2’-oxybis-, dicarbamate	5952-26-1
Ethion	563-12-2
Ethoprophos	13194-48-4
Ethyl chloroformate	541-41-3
Ethyl methanesulfonate	62-50-0
Ethyl nitrate	625-58-1
Ethyl nitrite	109-95-5
Ethyl O-(p-Nitrophenyl) phenylphosphonothionate (EPN)	2104-64-5
Ethylene chlorohydrin	107-07-3
Ethylene dibromide	106-93-4
Ethylene fluorohydrin	371-62-0
Ethylene oxide	75-21-8
Fenamiphos	22224-92-6
Fensulfothion	115-90-2
Flocoumafen	90035-08-8
Fluorine	7782-41-4
Fluoroacetic acid	144-49-0
Fluoroacetyl chloride	359-06-8
Formaldehyde	50-00-0
Formaldehyde cyanohydrin	107-16-4
Formetanate hydrochloride	23422-53-9
Formparanate	17702-57-7
Germane	7782-65-2
Glycolic acid	79-14-1
HD [Sulfur mustard or bis(2-chloroethyl)sulfide]	505-60-2
Heptachlor	76-44-8
Hexachlorobutadiene	87-68-3
Hexachlorocyclopentadiene	77-47-4
Hexamethylphosphoramide	680-31-9
Hydrazine	302-01-2
Hydrazine, 1,2-dimethyl-	540-73-8
Hydrochloric acid	7647-01-0
Hydrofluoric acid	7664-39-3
Hydrogen bromide	10035-10-6
Hydrogen cyanide	74-90-8
Hydrogen selenide	7783-07-5
Hydrogen sulfide	7783-06-4
Iron, Pentacarbonyl-	13463-40-6
Isobutylnitrile	78-82-0
Isodrin	465-73-6
Isopropyl percarbonate	105-64-6
Isopropylmethylpyrazolyl dimethylcarbamate	119-38-0
Kepone	143-50-0
Lactonitrile	78-97-7
Lead arsenate	7784-40-9
Lewisite	541-25-3
Manganese, bis(dimethylcarbamodithioato-S,S’)-	15339-36-3
Melphalan	148-82-3
Mercuric cyanide	592-04-1
Mercury	7439-97-6
Methacrylonitrile	126-98-7
Methane, chloromethoxy-	107-30-2
Methane, oxybis[chloro-	115-10-6
Methanesulfonyl fluoride	558-25-8
Methiocarb	2032-65-7
Methyl chloride	74-87-3
Methyl chloroformate	79-22-1
Methyl fluoroacetate	453-18-9
Methyl fluorosulfonate	421-20-5
Methyl hydrazine	60-34-4
Methyl isocyanate	624-83-9
Methyl isopropenyl ketone	814-78-8
Methyl mercaptan	74-93-1
Methyl vinyl ketone	78-94-4
Methyltrichlorosilane	75-79-6
Metolcarb	1129-41-5
Mitomycin C	50-07-7
Monocrotophos	6923-22-4
Nickel carbonyl	13463-39-3
Nitric acid	7697-37-2
Nitric oxide	10102-43-9
Nitrogen dioxide	10102-44-0
Nitrogen Tetraoxide	10544-72-6
Nitroglycerin	55-63-0
Nitromethane	75-52-5
N-Nitrosodiethanolamine	1116-54-7
N-Nitrosodiethylamine	55-18-5
N-Nitrosodimethylamine	62-75-9
N-Nitrosomorpholine	59-89-2
N-Nitroso-N-ethylurea	759-73-9
N-Nitroso-N-methylurea	684-93-5
N-Nitroso-N-methylurethane	615-53-2
N-Nitrosopyrrolidine	930-55-2
n-Propyl chloroformate	109-61-5
O-Dinitrobenzene	528-29-0
Oleum (Fuming Sulfuric acid)	8014-95-7
Oxamyl	23135-22-0
Oxygen difluoride	7783-41-7
Paraquat dichloride	1910-42-5
Paraquat methosulfate	2074-50-2
Parathion	56-38-2
Paris green	12002-03-8
P-Chlorophenol	106-48-9
Pentaborane	19624-22-7
Peracetic Acid	79-21-0
Perchloromethyl Mercaptan	594-42-3
Perfluoroisobutylene	382-21-8
Phenol	108-95-2
Phenol, 3-(1-methylethyl)-, methylcarbamate	64-00-6
Phenyl dichloroarsine	696-28-6
Phorate	298-02-2
Phosdrin	7786-34-7
Phosgene	75-44-5
Phosphamidon (Famfos)	13171-21-6
Phosphine	7803-51-2
Phosphorous trichloride	7719-12-2
Phosphorus (yellow or white)	7723-14-0
Phosphorus Oxychloride	10025-87-3
Physostigmine	57-47-6
Physostigmine, salicylate (1:1)	57-64-7
Picric acid	88-89-1
Potassium arsenate	7784-41-0
Potassium arsenite	10124-50-2
Potassium cyanide	151-50-8
Potassium silver cyanide	506-61-6
Promecarb	2631-37-0
Propargyl alcohol	107-19-7
Propham	122-42-9
Propionitrile	107-12-0
Propylene oxide	75-56-9
Propyleneimine	75-55-8
Sarin	107-44-8
Selenious acid	7783-00-8
Sesquimustard (1,2-bis(2-chloroethylthio)ethane)	3563-36-8
Silver cyanide	506-64-9
Silver nitrate	7761-88-8
Sodium arsenate	7778-43-0
Sodium arsenite	7784-46-5
Sodium cyanide (Na(CN))	143-33-9
Sodium fluoroacetate	62-74-8
Sodium hydroxide	1310-73-2
Soman	96-64-0
Stibine	7803-52-3
Streptozotocin	18883-66-4
Strychnine	57-24-9
Strychnine, sulfate	60-41-3
Styrene	100-42-5
Sulfur dioxide	7446-09-5
Sulfur tetrafluoride	7783-60-0
Sulfur trioxide	7446-11-9
Sulfuric acid	7664-93-9
Tabun	77-81-6
Terbufos	13071-79-9
Tert-butyl hydroperoxide	75-91-2
Tetraethyl lead	78-00-2
Tetraethyl pyroposphate (TEPP)	107-49-3
Tetrafluoroethylene	116-14-3
Tetranitromethane	509-14-8
Thiodicarb	59669-26-0
Thionyl chloride	7719-09-7
Titanium tetrachloride	7550-45-0
Toluene-2,4-diisocyanate	584-84-9
Toluene-2,6-diisocyanate	91-08-7
Toxaphene	8001-35-2
Triallate	2303-17-5
Trichlorosilane	10025-78-2
Trimethoxysilane	2487-90-3
Trimethylamine	75-50-3
Trimethylchlorosilane	75-77-4
Vinyl acetate	108-05-4
Vinyl chloride	75-01-4
VX (o-ethyl-S-2-diisopropylaminoethyl methyl phosphonothiolate)	50782-69-9

(Effective March 4, 2022)