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Part 5 Speciated Volatile Organic Compounds (VOCs) - Species names, synonyms and CAS numbers

As a resource for facilities required to report to the NPRI, the following tables outline substance names and CAS Registry numbers that apply to the speciated VOC entries contained in Part 5 of the NPRI Canada Gazette Notice. Synonyms and common names are also shown where applicable.

INDIVIDUAL SUBSTANCES
PollutantCAS Registry No.Synonyms
Acetylene74-86-2Ethyne
Adipic Acid124-04-9Hexanedioic acid; 1,4-Butanedicarboxylic acid
Aniline (and its salts)62-53-3Benzamine, Aminobenzene
Benzene71-43-2Cyclohexatriene, Phenyl hydride
1,3-Butadiene106-99-0Vinyl ethylene, Biethylene, Bivinyl
2-Butoxyethanol111-76-2EGBE, Butyl Cellosolve, n-Butoxyethanol
n-Butyl Acetate123-86-41-Butyl Acetate, acetic acid n-butyl ester
Chlorobenzene108-90-7Phenyl chloride
p-Dichlorobenzene106-46-71,4-Dichlorobenzene, PDCB, p-chlorophenyl chloride
1,2-Dichloroethane107-06-2Ethylene dichloride, Freon 150
Dimethylether115-10-6methyl ether, methoxymethane
Ethyl Alcohol64-17-5Ethanol, Ethyl hydroxide, Methylcarbinol
Ethyl Acetate141-78-6Ethyl acetic ester, Acetoxyethane
Ethylene74-85-1Ethene
Formaldehyde50-00-0methyl aldehyde, methylene glycol, oxomethane
Furfuryl alcohol98-00-0 
n-Hexane (All isomers, excluding110-54-3normal hexane, dipropyl, hexyl hydride
Isopropyl Alcohol67-63-02-Propanol, Isopropanol, Rubbing alcohol
D-Limonene5989-27-5D-1,8- p-Menthadiene
Methanol67-56-1Methyl alcohol, Wood alcohol, Monohydroxymethane
Methyl Ethyl Ketone78-93-32-Butanone, methyl acetone
2-Methyl-3-Hexanone7379-12-6Isopropyl n-Propyl Ketone
Methyl Isobutyl Ketone108-10-1hexanone, isopropylacetone
Myrcene123-35-37-Methyl-3-methylene-octadiene
Beta-Phellandrene555-10-21(7)-2- p-Menthadiene
Phenyl Isocyanate103-71-9Isocyanatobenzene
Alpha-Pinene80-56-8Cyclic dexadiene
Beta-Pinene127-91-3Nopinene
Propane74-98-6 
Propylene115-07-1Propene
Styrene100-42-5Phenylethylene, Vinyl benzene
Tetrahydrofuran109-99-9 
Toluene108-88-3Methylbenzene, Phenyl methane
1,2,4-Trimethylbenzene95-63-61,3,4- and 1,2,5-Trimethylbenzene; Pseudocumene
Trimethylfluorosilane420-56-4 
Vinyl Acetate108-05-4Acetic acid ethylene ether
ISOMER GROUPS
PollutantSynonymsNumber of IsomersCAS Registry No(s).Comments
Anthraquinone (All Isomers)Anthraquinone384-65-1
84-11-7
635-12-1
 
Butane (All Isomers)C4 Paraffins, C4 Alkanes, Isomers of Butane2106-97-8
75-28-5
 
Butene (All Isomers)C4 Olefin, C4 Alkenes, Butylene625167-67-3
106-98-9
590-18-1
624-64-6
115-11-7
107-01-7
 
Cycloheptane (All Isomers)C7 Cycloparaffins, C7 Cycloalkanes, C2 Cyclopentane10291-64-5
108-87-2
1640-89-7
1638-26-2
1192-18-3
1638-26-2
1759-58-6
2453-00-1
28729-52-4
2532-58-3
822-50-4
Includes Methycylohexane
Cyclohexene (All Isomers)C6 Cycloalkenes, Isomers of Cyclohexene5110-83-8
693-89-0
1120-62-3
1759-81-5
1501-58-2
Includes Methylcyclopentenes
Cyclooctane (All Isomers)C8 Cycloparaffins, C8 Cycloalkanes, C2 Cyclohexane25292-64-8
4126-78-7
1678-91-7
2207-04-7
589-90-2
591-21-9
624-29-3
583-57-3
6876-23-9
27195-67-1
590-66-9
2207-01-4
2207-03-6
638-04-0
30498-64-7
4516-69-2
4850-28-6
4259-00-1
2613-69-6
16747-50-5
930-90-5
930-89-2
16747-50-5
2040-96-2
3875-51-2
Includes Dimethycylohexane
Decane (All Isomers)C10 Paraffins, C10 Alkanes, Isomers of Decane31124-18-5
34464-38-5
63335-87-5
871-83-0
5911-04-6
17301-94-9
15869-85-9
5881-17-4
15869-86-0
7146-60-3
15869-87-1
15869-95-1
2051-30-1
4110-44-5
15869-93-9
1072-16-8
15869-94-0
52896-87-4
14676-29-0
17302-01-1
14720-74-2
20278-87-9
20278-89-1
2613-61-8
4032-93-3
7154-80-5
79004-85-6
1071-81-4
13475-81-5
16747-42-5
5171-84-6
 
Dihydronapthalene (All Isomers)Dihydronapthalene2447-53-0
612-17-9
 
Dodecane (All Isomers)C12 Paraffins, C12 Alkanes, Isomers of Dodecane9112-40-3
31807-55-3
17312-50-4
13150-81-7
1071-31-4
62199-46-6
30586-18-6
62199-62-6
13475-82-6
Includes n-Dodecane
Heptane (All Isomers)C7 Paraffins, C7 Alkanes, Isomers of Heptane13142-82-5
31394-54-4
73513-42-5
25495-88-9
589-34-4
591-76-4
617-78-7
38815-29-1
565-59-3
108-08-7
562-49-2
590-35-2
464-06-2
 
Hexane (All Isomers Excluding n-Hexane)C6 Paraffins, C6 Alkanes, Isomers of Hexane643133-95-5
107-83-5
96-14-0
75-83-2
79-29-8
38719-68-5
n-Hexane already on NPRI
Hexene (All Isomers)C6 Olefins, C6 Alkenes, Isomers of Hexene1725264-93-1
592-41-6
592-43-8
592-47-2
7688-21-3
7642-09-3
37275-41-5
625-27-4
691-37-2
763-29-1
4461-48-7
760-20-3
27236-46-0
760-21-4
563-78-0
563-79-1
558-37-2
Includes Methylpentenes
Methylindans (All Isomers)Methylindanes227133-93-3
767-58-8
 
Nonane (All Isomers)C9 Paraffins, C9 Alkanes, Isomers of Nonane38111-84-2
61193-19-9
3221-61-2
2216-33-3
2216-34-4
15869-80-4
2216-32-2
30498-66-9
4032-86-4
1072-05-5
2213-23-2
3074-71-3
106819-5
1071-26-7
2216-30-0
922-28-1
926-82-9
3074-75-7
3074-77-9
16789-46-1
26447-41-6
3522-94-9
16747-26-5
1069-53-0
16747-25-4
1068-87-7
16747-30-1
16747-31-2
921-47-1
1067-20-5
86571-39-3
1070-87-7
16747-32-3
60265-51-2
1186-53-4
7154-79-2
16747-38-9
 
Octane (All Isomers)C8 Paraffins, C8 Alkanes, Isomers of Octane23111-65-9
50985-84-7
589-81-1
592-27-8
589-53-7
111002-96-1
619-99-8
28777-67-5
584-94-1
589-43-5
563-16-6
590-73-8
592-13-2
583-48-2
79914-21-9
1067-08-9
609-26-7
29222-48-8
540-84-1
560-21-4
564-02-3
565-75-3
594-82-1
Includes Dimethylhexanes
Pentane (All Isomers)C5 Paraffins, C5 Alkanes, Isomers of Pentane4109-66-0
78-78-4
463-82-1
102056-77-9
Includes 50% C5 Paraffin/Olefin
Pentene (All Isomers)C5 Olefin, C5 Alkenes, Amylene10109-67-1
25377-72-4
68527-11-7
109-68-2
513-35-9
627-20-3
646-04-8
563-46-2
563-45-1
26760-64-5
Includes Methylbutenes, 50% C5 Paraffin/Olefin
Terpenes 168956-56-9 
Trimethylbenzene (All Isomers, Excluding 1,2,4)Trimethylbenzene325551-13-7
526-73-8
108-67-8
1,2,4-Trimethylbenzene already on NPRI
Xylene (All Isomers)Xylene, Dimethylbenzene41330-20-7
108-38-3
95-47-6
106-42-3
Includes m-xylene, o-xylene, p-xylene
OTHER COMPOUND GROUPS AND MIXTURES
PollutantCAS Registry No.Synonyms
Creosote8001-58-9Coal Tar Oil, Brick Oil, Heavy Oil, Tar Oil
Heavy alkylate naphtha64741-65-7 
Heavy Aromatic Solvent Naphtha64742-94-5Heavy Aromatics, Aromatic 150
Hydrotreated heavy naptha64742-48-9 
Hydrotreated light distillate64742-47-8 
Light Aromatic Solvent Naphtha64742-95-6Aromatic 100
Mineral Spirits64475-85-0 
Naphtha8030-30-6 
Solvent naptha light aliphatics64742-89-8 
Solvent naptha meduim aliphatic64742-88-7 
Stoddard Solvent8052-41-3White Spirits
VM & P naphtha8032-32-4 
White Mineral Oil8042-47-5 
Diethylene glycol butyl ether112-34-5 
Diethylene glycol ethyl ether acetate112-15-2 
Ethylene glycol butyl ether acetate112-07-2 
Ethylene glycol hexyl ether112-25-4 
Propylene glycol butyl ether5131-66-8 
Propylene glycol methyl ether acetate108-65-6 
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