PCB congener list

This is a complete list of polychlorinated biphenyl (PCB) congeners.

Chemical structure of PCBs. The possible positions of chlorine atoms on the benzene rings are denoted by numbers assigned to the carbon atoms.

PCB congener list

Explanation of PCB "descriptors"

Congener descriptors give a shorthand notation for geometry and substituent positions. The twelve congeners that display all four of the descriptors are referred to as being "dioxin-like", referring both to their toxicity and structural features which make them similar to 2,3,7,8-tetrachlorodibenzo-p-dioxin (2378-TCDD).[1] Individual congeners are identified by the number and position of the chlorine atoms around the biphenyl rings.[2]

CP0 / CP1

These 68 coplanar congeners fall into one of two groups. The first group of 20 congeners consists of those with chlorine substitution at none of the ortho positions on the biphenyl backbone and are referred to as CP0 or non-ortho congeners. The second group of 48 congeners includes those with chlorine substitution at only one of the ortho positions and are referred to as CP1 or mono-ortho congeners.

4CL

These 169 congeners have a total of four or more chlorine substituents, regardless of position.

PP

These 54 congeners have both para positions chlorinated.

2M

These 140 congeners have two or more of the meta positions chlorinated.

IUPAC Name BZ[3] Congener Number CASNR Descriptors
Biphenyl 0 92-52-4
2-Chlorobiphenyl 1 2051-60-7 CP1
3-Chlorobiphenyl 2 2051-61-8 CP0
4-Chlorobiphenyl 3 2051-62-9 CP0
2,2'-Dichlorobiphenyl 4 13029-08-8
2,3-Dichlorobiphenyl 5 16605-91-7 CP1
2,3'-Dichlorobiphenyl 6 25569-80-6 CP1
2,4-Dichlorobiphenyl 7 33284-50-3 CP1
2,4'-Dichlorobiphenyl 8 34883-43-7 CP1
2,5-Dichlorobiphenyl 9 34883-39-1 CP1
2,6-Dichlorobiphenyl 10 33146-45-1
3,3'-Dichlorobiphenyl 11 2050-67-1 CP0, 2M
3,4-Dichlorobiphenyl 12 2974-92-7 CP0
3,4'-Dichlorobiphenyl 13 2974-90-5 CP0
3,5-Dichlorobiphenyl 14 34883-41-5 CP0, 2M
4,4'-Dichlorobiphenyl 15 2050-68-2 CP0, PP
2,2',3-Trichlorobiphenyl 16 38444-78-9
2,2',4-Trichlorobiphenyl 17 37680-66-3
2,2',5-Trichlorobiphenyl 18 37680-65-2
2,2',6-Trichlorobiphenyl 19 38444-73-4
2,3,3'-Trichlorobiphenyl 20 38444-84-7 CP1, 2M
2,3,4-Trichlorobiphenyl 21 55702-46-0 CP1
2,3,4'-Trichlorobiphenyl 22 38444-85-8 CP1
2,3,5-Trichlorobiphenyl 23 55720-44-0 CP1, 2M
2,3,6-Trichlorobiphenyl 24 55702-45-9
2,3',4-Trichlorobiphenyl 25 55712-37-3 CP1
2,3',5-Trichlorobiphenyl 26 38444-81-4 CP1, 2M
2,3',6-Trichlorobiphenyl 27 38444-76-7
2,4,4'-Trichlorobiphenyl 28 7012-37-5 CP1, PP
2,4,5-Trichlorobiphenyl 29 15862-07-4 CP1
2,4,6-Trichlorobiphenyl 30 35693-92-6
2,4',5-Trichlorobiphenyl 31 16606-02-3 CP1
2,4',6-Trichlorobiphenyl 32 38444-77-8
2,3',4'-Trichlorobiphenyl 33 38444-86-9 CP1
2,3',5'-Trichlorobiphenyl 34 37680-68-5 CP1, 2M
3,3',4-Trichlorobiphenyl 35 37680-69-6 CP0, 2M
3,3',5-Trichlorobiphenyl 36 38444-87-0 CP0, 2M
3,4,4'-Trichlorobiphenyl 37 38444-90-5 CP0, PP
3,4,5-Trichlorobiphenyl 38 53555-66-1 CP0, 2M
3,4',5-Trichlorobiphenyl 39 38444-88-1 CP0, 2M
2,2',3,3'-Tetrachlorobiphenyl 40 38444-93-8 4CL, 2M
2,2',3,4-Tetrachlorobiphenyl 41 52663-59-9 4CL
2,2',3,4'-Tetrachlorobiphenyl 42 36559-22-5 4CL
2,2',3,5-Tetrachlorobiphenyl 43 70362-46-8 4CL, 2M
2,2',3,5'-Tetrachlorobiphenyl 44 41464-39-5 4CL, 2M
2,2',3,6-Tetrachlorobiphenyl 45 70362-45-7 4CL
2,2',3,6'-Tetrachlorobiphenyl 46 41464-47-5 4CL
2,2',4,4'-Tetrachlorobiphenyl 47 2437-79-8 4CL, PP
2,2',4,5-Tetrachlorobiphenyl 48 70362-47-9 4CL
2,2',4,5'-Tetrachlorobiphenyl 49 41464-40-8 4CL
2,2',4,6-Tetrachlorobiphenyl 50 62796-65-0 4CL
2,2',4,6'-Tetrachlorobiphenyl 51 68194-04-7 4CL
2,2',5,5'-Tetrachlorobiphenyl 52 35693-99-3 4CL, 2M
2,2',5,6'-Tetrachlorobiphenyl 53 41464-41-9 4CL
2,2',6,6'-Tetrachlorobiphenyl 54 15968-05-5 4CL
2,3,3',4-Tetrachlorobiphenyl 55 74338-24-2 CP1, 4CL, 2M
2,3,3',4'-Tetrachlorobiphenyl 56 41464-43-1 CP1, 4CL, 2M
2,3,3',5-Tetrachlorobiphenyl 57 70424-67-8 CP1, 4CL, 2M
2,3,3',5'-Tetrachlorobiphenyl 58 41464-49-7 CP1, 4CL, 2M
2,3,3',6-Tetrachlorobiphenyl 59 74472-33-6 4CL, 2M
2,3,4,4'-Tetrachlorobiphenyl 60 33025-41-1 CP1, 4CL, PP
2,3,4,5-Tetrachlorobiphenyl 61 33284-53-6 CP1, 4CL, 2M
2,3,4,6-Tetrachlorobiphenyl 62 54230-22-7 4CL
2,3,4',5-Tetrachlorobiphenyl 63 74472-34-7 CP1, 4CL, 2M
2,3,4',6-Tetrachlorobiphenyl 64 52663-58-8 4CL
2,3,5,6-Tetrachlorobiphenyl 65 33284-54-7 4CL, 2M
2,3',4,4'-Tetrachlorobiphenyl 66 32598-10-0 CP1, 4CL, PP
2,3',4,5-Tetrachlorobiphenyl 67 73575-53-8 CP1, 4CL, 2M
2,3',4,5'-Tetrachlorobiphenyl 68 73575-52-7 CP1, 4CL, 2M
2,3',4,6-Tetrachlorobiphenyl 69 60233-24-1 4CL
2,3',4',5-Tetrachlorobiphenyl 70 32598-11-1 CP1, 4CL, 2M
2,3',4',6-Tetrachlorobiphenyl 71 41464-46-4 4CL
2,3',5,5'-Tetrachlorobiphenyl 72 41464-42-0 CP1, 4CL, 2M
2,3',5',6-Tetrachlorobiphenyl 73 74338-23-1 4CL, 2M
2,4,4',5-Tetrachlorobiphenyl 74 32690-93-0 CP1, 4CL, PP
2,4,4',6-Tetrachlorobiphenyl 75 32598-12-2 4CL, PP
2,3',4',5'-Tetrachlorobiphenyl 76 70362-48-0 CP1, 4CL, 2M
3,3',4,4'-Tetrachlorobiphenyl 77 32598-13-3 CP0, 4CL, PP, 2M
3,3',4,5-Tetrachlorobiphenyl 78 70362-49-1 CP0, 4CL, 2M
3,3',4,5'-Tetrachlorobiphenyl 79 41464-48-6 CP0, 4CL, 2M
3,3',5,5'-Tetrachlorobiphenyl 80 33284-52-5 CP0, 4CL, 2M
3,4,4',5-Tetrachlorobiphenyl 81 70362-50-4 CP0, 4CL, PP, 2M
2,2',3,3',4-Pentachlorobiphenyl 82 52663-62-4 4CL, 2M
2,2',3,3',5-Pentachlorobiphenyl 83 60145-20-2 4CL, 2M
2,2',3,3',6-Pentachlorobiphenyl 84 52663-60-2 4CL, 2M
2,2',3,4,4'-Pentachlorobiphenyl 85 65510-45-4 4CL, PP
2,2',3,4,5-Pentachlorobiphenyl 86 55312-69-1 4CL, 2M
2,2',3,4,5'-Pentachlorobiphenyl 87 38380-02-8 4CL, 2M
2,2',3,4,6-Pentachlorobiphenyl 88 55215-17-3 4CL
2,2',3,4,6'-Pentachlorobiphenyl 89 73575-57-2 4CL
2,2',3,4',5-Pentachlorobiphenyl 90 68194-07-0 4CL, 2M
2,2',3,4',6-Pentachlorobiphenyl 91 68194-05-8 4CL
2,2',3,5,5'-Pentachlorobiphenyl 92 52663-61-3 4CL, 2M
2,2',3,5,6-Pentachlorobiphenyl 93 73575-56-1 4CL, 2M
2,2',3,5,6'-Pentachlorobiphenyl 94 73575-55-0 4CL, 2M
2,2',3,5',6-Pentachlorobiphenyl 95 38379-99-6 4CL, 2M
2,2',3,6,6'-Pentachlorobiphenyl 96 73575-54-9 4CL
2,2',3,4',5'-Pentachlorobiphenyl 97 41464-51-1 4CL, 2M
2,2',3,4',6'-Pentachlorobiphenyl 98 60233-25-2 4CL
2,2',4,4',5-Pentachlorobiphenyl 99 38380-01-7 4CL, PP
2,2',4,4',6-Pentachlorobiphenyl 100 39485-83-1 4CL, PP
2,2',4,5,5'-Pentachlorobiphenyl 101 37680-73-2 4CL, 2M
2,2',4,5,6'-Pentachlorobiphenyl 102 68194-06-9 4CL
2,2',4,5',6-Pentachlorobiphenyl 103 60145-21-3 4CL
2,2',4,6,6'-Pentachlorobiphenyl 104 56558-16-8 4CL
2,3,3',4,4'-Pentachlorobiphenyl 105 32598-14-4 CP1, 4CL, PP, 2M
2,3,3',4,5-Pentachlorobiphenyl 106 70424-69-0 CP1, 4CL, 2M
2,3,3',4',5-Pentachlorobiphenyl 107 70424-68-9 CP1, 4CL, 2M
2,3,3',4,5'-Pentachlorobiphenyl 108 70362-41-3 CP1, 4CL, 2M
2,3,3',4,6-Pentachlorobiphenyl 109 74472-35-8 4CL, 2M
2,3,3',4',6-Pentachlorobiphenyl 110 38380-03-9 4CL, 2M
2,3,3',5,5'-Pentachlorobiphenyl 111 39635-32-0 CP1, 4CL, 2M
2,3,3',5,6-Pentachlorobiphenyl 112 74472-36-9 4CL, 2M
2,3,3',5',6-Pentachlorobiphenyl 113 68194-10-5 4CL, 2M
2,3,4,4',5-Pentachlorobiphenyl 114 74472-37-0 CP1, 4CL, PP, 2M
2,3,4,4',6-Pentachlorobiphenyl 115 74472-38-1 4CL, PP
2,3,4,5,6-Pentachlorobiphenyl 116 18259-05-7 4CL, 2M
2,3,4',5,6-Pentachlorobiphenyl 117 68194-11-6 4CL, 2M
2,3',4,4',5-Pentachlorobiphenyl 118 31508-00-6 CP1, 4CL, PP, 2M
2,3',4,4',6-Pentachlorobiphenyl 119 56558-17-9 4CL, PP
2,3',4,5,5'-Pentachlorobiphenyl 120 68194-12-7 CP1, 4CL, 2M
2,3',4,5',6-Pentachlorobiphenyl 121 56558-18-0 4CL, 2M
2,3,3',4',5'-Pentachlorobiphenyl 122 76842-07-4 CP1, 4CL, 2M
2,3',4,4',5'-Pentachlorobiphenyl 123 65510-44-3 CP1, 4CL, PP, 2M
2,3',4',5,5'-Pentachlorobiphenyl 124 70424-70-3 CP1, 4CL, 2M
2,3',4',5',6-Pentachlorobiphenyl 125 74472-39-2 4CL, 2M
3,3',4,4',5-Pentachlorobiphenyl 126 57465-28-8 CP0, 4CL, PP, 2M
3,3',4,5,5'-Pentachlorobiphenyl 127 39635-33-1 CP0, 4CL, 2M
2,2',3,3',4,4'-Hexachlorobiphenyl 128 38380-07-3 4CL, PP, 2M
2,2',3,3',4,5-Hexachlorobiphenyl 129 55215-18-4 4CL, 2M
2,2',3,3',4,5'-Hexachlorobiphenyl 130 52663-66-8 4CL, 2M
2,2',3,3',4,6-Hexachlorobiphenyl 131 61798-70-7 4CL, 2M
2,2',3,3',4,6'-Hexachlorobiphenyl 132 38380-05-1 4CL, 2M
2,2',3,3',5,5'-Hexachlorobiphenyl 133 35694-04-3 4CL, 2M
2,2',3,3',5,6-Hexachlorobiphenyl 134 52704-70-8 4CL, 2M
2,2',3,3',5,6'-Hexachlorobiphenyl 135 52744-13-5 4CL, 2M
2,2',3,3',6,6'-Hexachlorobiphenyl 136 38411-22-2 4CL, 2M
2,2',3,4,4',5-Hexachlorobiphenyl 137 35694-06-5 4CL, PP, 2M
2,2',3,4,4',5'-Hexachlorobiphenyl 138 35065-28-2 4CL, PP, 2M
2,2',3,4,4',6-Hexachlorobiphenyl 139 56030-56-9 4CL, PP
2,2',3,4,4',6'-Hexachlorobiphenyl 140 59291-64-4 4CL, PP
2,2',3,4,5,5'-Hexachlorobiphenyl 141 52712-04-6 4CL, 2M
2,2',3,4,5,6-Hexachlorobiphenyl 142 41411-61-4 4CL, 2M
2,2',3,4,5,6'-Hexachlorobiphenyl 143 68194-15-0 4CL, 2M
2,2',3,4,5',6-Hexachlorobiphenyl 144 68194-14-9 4CL, 2M
2,2',3,4,6,6'-Hexachlorobiphenyl 145 74472-40-5 4CL
2,2',3,4',5,5'-Hexachlorobiphenyl 146 51908-16-8 4CL, 2M
2,2',3,4',5,6-Hexachlorobiphenyl 147 68194-13-8 4CL, 2M
2,2',3,4',5,6'-Hexachlorobiphenyl 148 74472-41-6 4CL, 2M
2,2',3,4',5',6-Hexachlorobiphenyl 149 38380-04-0 4CL, 2M
2,2',3,4',6,6'-Hexachlorobiphenyl 150 68194-08-1 4CL
2,2',3,5,5',6-Hexachlorobiphenyl 151 52663-63-5 4CL, 2M
2,2',3,5,6,6'-Hexachlorobiphenyl 152 68194-09-2 4CL, 2M
2,2',4,4',5,5'-Hexachlorobiphenyl 153 35065-27-1 4CL, PP, 2M
2,2',4,4',5,6'-Hexachlorobiphenyl 154 60145-22-4 4CL, PP
2,2',4,4',6,6'-Hexachlorobiphenyl 155 33979-03-2 4CL, PP
2,3,3',4,4',5-Hexachlorobiphenyl 156 38380-08-4 CP1, 4CL, PP, 2M
2,3,3',4,4',5'-Hexachlorobiphenyl 157 69782-90-7 CP1, 4CL, PP, 2M
2,3,3',4,4',6-Hexachlorobiphenyl 158 74472-42-7 4CL, PP, 2M
2,3,3',4,5,5'-Hexachlorobiphenyl 159 39635-35-3 CP1, 4CL, 2M
2,3,3',4,5,6-Hexachlorobiphenyl 160 41411-62-5 4CL, 2M
2,3,3',4,5',6-Hexachlorobiphenyl 161 74472-43-8 4CL, 2M
2,3,3',4',5,5'-Hexachlorobiphenyl 162 39635-34-2 CP1, 4CL, 2M
2,3,3',4',5,6-Hexachlorobiphenyl 163 74472-44-9 4CL, 2M
2,3,3',4',5',6-Hexachlorobiphenyl 164 74472-45-0 4CL, 2M
2,3,3',5,5',6-Hexachlorobiphenyl 165 74472-46-1 4CL, 2M
2,3,4,4',5,6-Hexachlorobiphenyl 166 41411-63-6 4CL, PP, 2M
2,3',4,4',5,5'-Hexachlorobiphenyl 167 52663-72-6 CP1, 4CL, PP, 2M
2,3',4,4',5',6-Hexachlorobiphenyl 168 59291-65-5 4CL, PP, 2M
3,3',4,4',5,5'-Hexachlorobiphenyl 169 32774-16-6 CP0, 4CL, PP, 2M
2,2',3,3',4,4',5-Heptachlorobiphenyl 170 35065-30-6 4CL, PP, 2M
2,2',3,3',4,4',6-Heptachlorobiphenyl 171 52663-71-5 4CL, PP, 2M
2,2',3,3',4,5,5'-Heptachlorobiphenyl 172 52663-74-8 4CL, 2M
2,2',3,3',4,5,6-Heptachlorobiphenyl 173 68194-16-1 4CL, 2M
2,2',3,3',4,5,6'-Heptachlorobiphenyl 174 38411-25-5 4CL, 2M
2,2',3,3',4,5',6-Heptachlorobiphenyl 175 40186-70-7 4CL, 2M
2,2',3,3',4,6,6'-Heptachlorobiphenyl 176 52663-65-7 4CL, 2M
2,2',3,3',4,5',6'-Heptachlorobiphenyl 177 52663-70-4 4CL, 2M
2,2',3,3',5,5',6-Heptachlorobiphenyl 178 52663-67-9 4CL, 2M
2,2',3,3',5,6,6'-Heptachlorobiphenyl 179 52663-64-6 4CL, 2M
2,2',3,4,4',5,5'-Heptachlorobiphenyl 180 35065-29-3 4CL, PP, 2M
2,2',3,4,4',5,6-Heptachlorobiphenyl 181 74472-47-2 4CL, PP, 2M
2,2',3,4,4',5,6'-Heptachlorobiphenyl 182 60145-23-5 4CL, PP, 2M
2,2',3,4,4',5',6-Heptachlorobiphenyl 183 52663-69-1 4CL, PP, 2M
2,2',3,4,4',6,6'-Heptachlorobiphenyl 184 74472-48-3 4CL, PP
2,2',3,4,5,5',6-Heptachlorobiphenyl 185 52712-05-7 4CL, 2M
2,2',3,4,5,6,6'-Heptachlorobiphenyl 186 74472-49-4 4CL, 2M
2,2',3,4',5,5',6-Heptachlorobiphenyl 187 52663-68-0 4CL, 2M
2,2',3,4',5,6,6'-Heptachlorobiphenyl 188 74487-85-7 4CL, 2M
2,3,3',4,4',5,5'-Heptachlorobiphenyl 189 39635-31-9 CP1, 4CL, PP, 2M
2,3,3',4,4',5,6-Heptachlorobiphenyl 190 41411-64-7 4CL, PP, 2M
2,3,3',4,4',5',6-Heptachlorobiphenyl 191 74472-50-7 4CL, PP, 2M
2,3,3',4,5,5',6-Heptachlorobiphenyl 192 74472-51-8 4CL, 2M
2,3,3',4',5,5',6-Heptachlorobiphenyl 193 69782-91-8 4CL, 2M
2,2',3,3',4,4',5,5'-Octachlorobiphenyl 194 35694-08-7 4CL, PP, 2M
2,2',3,3',4,4',5,6-Octachlorobiphenyl 195 52663-78-2 4CL, PP, 2M
2,2',3,3',4,4',5,6'-Octachlorobiphenyl 196 42740-50-1 4CL, PP, 2M
2,2',3,3',4,4',6,6'-Octachlorobiphenyl 197 33091-17-7 4CL, PP, 2M
2,2',3,3',4,5,5',6-Octachlorobiphenyl 198 68194-17-2 4CL, 2M
2,2',3,3',4,5,5',6'-Octachlorobiphenyl 199 52663-75-9 4CL, 2M
2,2',3,3',4,5,6,6'-Octachlorobiphenyl 200 52663-73-7 4CL, 2M
2,2',3,3',4,5',6,6'-Octachlorobiphenyl 201 40186-71-8 4CL, 2M
2,2',3,3',5,5',6,6'-Octachlorobiphenyl 202 2136-99-4 4CL, 2M
2,2',3,4,4',5,5',6-Octachlorobiphenyl 203 52663-76-0 4CL, PP, 2M
2,2',3,4,4',5,6,6'-Octachlorobiphenyl 204 74472-52-9 4CL, PP, 2M
2,3,3',4,4',5,5',6-Octachlorobiphenyl 205 74472-53-0 4CL, PP, 2M
2,2',3,3',4,4',5,5',6-Nonachlorobiphenyl 206 40186-72-9 4CL, PP, 2M
2,2',3,3',4,4',5,6,6'-Nonachlorobiphenyl 207 52663-79-3 4CL, PP, 2M
2,2',3,3',4,5,5',6,6'-Nonachlorobiphenyl 208 52663-77-1 4CL, 2M
Decachlorobiphenyl 209 2051-24-3 4CL, PP, 2M

References
  1. PCB ID - Toxicity Equivalency Factors (TEFs) | Polychlorinated Biphenyls (PCBs) | US EPA
  2. PCB Congeners
  3. BZ was named after Ballschmiter, K.; Zell, M. (1980). "Analysis of polychlorinated biphenyls (PCB) by glass capillary gas chromatography". Fresenius' Zeitschrift für Analytische Chemie. 302: 20–31. doi:10.1007/BF00469758.
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