List of PCB congeners

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This list contains all 209 congeners of the polychlorinated biphenyls (PCB).

General structural formula of PCB. The locants are indicated for the possible positions of the chlorine atoms on the phenyl rings .

Congener list

Explanation of the PCB descriptors

Congener descriptors offer the possibility of a short notation for the substitution pattern and the geometry. Those twelve congeners, which have all four descriptors are as dioxin-like designates as these in terms of their structural properties and their toxicity to 2,3,7,8-Tetrachlordibenzo- p dioxin (2,3,7,8-TCDD ) are similar. The individual congeners are identified by the number and position of the chlorine atoms around the biphenyl rings.

CP0 / CP1

These 68 co-planar congeners belong to one of two groups:

  • The first group consists of 20 congeners in which none of the ortho positions is chlorinated. They are known as CP0 or non-ortho congeners .
  • The second group consists of 48 congeners in which only one of the ortho positions is chlorinated. They are known as CP1, or mono-ortho congeners .

4CL

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

PP

Both para positions of these 54 congeners are chlorinated.

2M

In these 140 congeners, two or more meta positions are chlorinated.

IUPAC name BZ congener number CAS number Descriptors
Biphenyl 0 92-52-4 (does not belong to the PCB)
2-chlorobiphenyl 1 2051-60-7 CP1
3-chlorobiphenyl 2 2051-61-8 CP0
4-chlorobiphenyl 3 2051-62-9 CP0
2,2'-dichlorobiphenyl 4th 13029-08-8
2,3-dichlorobiphenyl 5 16605-91-7 CP1
2,3'-dichlorobiphenyl 6th 25569-80-6 CP1
2,4-dichlorobiphenyl 7th 33284-50-3 CP1
2,4'-dichlorobiphenyl 8th 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 14th 34883-41-5 CP0, 2M
4,4'-dichlorobiphenyl 15th 2050-68-2 CP0, PP
2,2 ', 3-trichlorobiphenyl 16 38444-78-9
2,2 ', 4-trichlorobiphenyl 17th 37680-66-3
2,2 ', 5-trichlorobiphenyl 18th 37680-65-2
2,2 ', 6-trichlorobiphenyl 19th 38444-73-4
2,3,3'-trichlorobiphenyl 20th 38444-84-7 CP1, 2M
2,3,4-trichlorobiphenyl 21st 55702-46-0 CP1
2,3,4'-trichlorobiphenyl 22nd 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 25th 55712-37-3 CP1
2,3 ', 5-trichlorobiphenyl 26th 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 30th 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

Individual evidence

  1. ↑ US EPA : Recommended Toxicity Equivalence Factors (TEFs) for Human Health Risk Assessments of 2,3,7,8-Tetrachlorodibenzo-p-dioxin and Dioxin-Like Compounds
  2. ↑ PCB Congeners
  3. ↑ BZ named after K. Ballschmiter , M. Zell: Analysis of polychlorinated biphenyls (PCB) by glass capillary gas chromatography. In: Fresenius' Journal for Analytical Chemistry . 302, 1980, pp. 20-31, doi : 10.1007 / BF00469758 .

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