多氯双苯并对二𫫇英

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多氯代双苯并对二𫫇英（polychlorinated dibenzo-p-dioxins）是对二𫫇英（对二𫫇己熳）衍生物中最重要、危害最大的一类，是二苯并对二𫫇英的氯代物，一般提到“二𫫇英”时指的均是对二𫫇英衍生物中的此一子类，包含臭名昭著的橙剂杂质2,3,7,8-四氯双苯环二𫫇英（2,3,7,8-TCDD）。

## 化合物列表

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二苯并对二𫫇英含有两个苯环和两个氧桥，形成芳香二醚。命名中的“二𫫇”指两个氧杂。

由于二苯并对二𫫇英的5位和10位碳原子被氧原子置换，至多可以有八个氢被取代。存有凡75种多氯双苯并对二𫫇英的（不同分）异构体。

取代位简名｜分子式｜名称｜CAS号｜InChIKey

PCDD-1｜$C12H7ClO2$｜1-氯代双苯并对二𫫇己熳｜39227-53-7｜VGGGRWRBGXENKI-UHFFFAOYSA-N

PCDD-2｜$C12H7ClO2$｜2-氯代双苯并对二𫫇己熳｜39227-54-8｜GIUGGRUEPHPVNR-UHFFFAOYSA-N

PCDD-12｜$C12H6Cl2O2$｜1,2-双氯代双苯并对二𫫇己熳｜54536-18-4｜DFGDMWHUCCHXIF-UHFFFAOYSA-N

PCDD-13｜$C12H6Cl2O2$｜1,3-双氯代双苯并对二𫫇己熳｜50585-39-2｜AZYJYMAKTBXNSX-UHFFFAOYSA-N

PCDD-14｜$C12H6Cl2O2$｜1,4-双氯代双苯并对二𫫇己熳｜54536-19-5｜MBMUPQZSDWVPQU-UHFFFAOYSA-N

PCDD-16｜$C12H6Cl2O2$｜1,6-双氯代双苯并对二𫫇己熳｜38178-38-0｜MAWMBEVNJGEDAD-UHFFFAOYSA-N

PCDD-17｜$C12H6Cl2O2$｜1,7-双氯代双苯并对二𫫇己熳｜82291-26-7｜IJUWLAFPPVRYGY-UHFFFAOYSA-N

PCDD-18｜$C12H6Cl2O2$｜1,8-双氯代双苯并对二𫫇己熳｜82291-27-8｜PLZYIHQBHROTFD-UHFFFAOYSA-N

PCDD-19｜$C12H6Cl2O2$｜1,9-双氯代双苯并对二𫫇己熳｜82291-28-9｜JZDVJXBKJDADAY-UHFFFAOYSA-N

PCDD-23｜$C12H6Cl2O2$｜2,3-双氯代双苯并对二𫫇己熳｜29446-15-9｜YCIYTXRUZSDMRZ-UHFFFAOYSA-N

PCDD-27｜$C12H6Cl2O2$｜2,7-双氯代双苯并对二𫫇己熳｜33857-26-0｜NBFMTHWVRBOVPE-UHFFFAOYSA-N

PCDD-28｜$C12H6Cl2O2$｜2,8-双氯代双苯并对二𫫇己熳｜38964-22-6｜WMWJCKBJUQDYLM-UHFFFAOYSA-N

PCDD-123｜$C12H5Cl3O2$｜1,2,3-仨氯代双苯并对二𫫇己熳｜54536-17-3｜SKMFBGZVVNDVFR-UHFFFAOYSA-N

PCDD-124｜$C12H5Cl3O2$｜1,2,4-仨氯代双苯并对二𫫇己熳｜39227-58-2｜HRVUKLBFRPWXPJ-UHFFFAOYSA-N

PCDD-126｜$C12H5Cl3O2$｜1,2,6-仨氯代双苯并对二𫫇己熳｜69760-96-9｜XQBPVWBIUBCJJO-UHFFFAOYSA-N

PCDD-127｜$C12H5Cl3O2$｜1,2,7-仨氯代双苯并对二𫫇己熳｜82291-30-3｜TXJMXDWFPQSYEQ-UHFFFAOYSA-N

PCDD-128｜$C12H5Cl3O2$｜1,2,8-仨氯代双苯并对二𫫇己熳｜82291-31-4｜QBEOCKSANJLBAE-UHFFFAOYSA-N

PCDD-129｜$C12H5Cl3O2$｜1,2,9-仨氯代双苯并对二𫫇己熳｜82291-32-5｜DQLRDBDQLSIOIX-UHFFFAOYSA-N

PCDD-136｜$C12H5Cl3O2$｜1,3,6-仨氯代双苯并对二𫫇己熳｜82291-33-6｜LNPVMVSAUXUGHH-UHFFFAOYSA-N

PCDD-137｜$C12H5Cl3O2$｜1,3,7-仨氯代双苯并对二𫫇己熳｜67028-17-5｜RPKWIXFZKMDPMH-UHFFFAOYSA-N

PCDD-138｜$C12H5Cl3O2$｜1,3,8-仨氯代双苯并对二𫫇己熳｜82306-61-4｜FJAKCOBYQSEWMT-UHFFFAOYSA-N

PCDD-139｜$C12H5Cl3O2$｜1,3,9-仨氯代双苯并对二𫫇己熳｜82306-62-5｜DGDADRUTFAIIQQ-UHFFFAOYSA-N

PCDD-146｜$C12H5Cl3O2$｜1,4,6-仨氯代双苯并对二𫫇己熳｜82306-63-6｜UTTYFTWIJLRXKB-UHFFFAOYSA-N

PCDD-147｜$C12H5Cl3O2$｜1,4,7-仨氯代双苯并对二𫫇己熳｜82306-64-7｜NBWAQBGJBSYXHV-UHFFFAOYSA-N

PCDD-178｜$C12H5Cl3O2$｜1,7,8-仨氯代双苯并对二𫫇己熳｜82306-65-8｜CAPCTZJHYADFNX-UHFFFAOYSA-N

PCDD-237｜$C12H5Cl3O2$｜2,3,7-仨氯代双苯并对二𫫇己熳｜33857-28-2｜ZSIZNEVHVVRPFF-UHFFFAOYSA-N

PCDD-1234｜$C12H4Cl4O2$｜1,2,3,4-四氯代双苯并对二𫫇己熳｜30746-58-8｜DJHHDLMTUOLVHY-UHFFFAOYSA-N

PCDD-1236｜$C12H4Cl4O2$｜1,2,3,6-四氯代双苯并对二𫫇己熳｜71669-25-5｜XEZBZSVTUSXISZ-UHFFFAOYSA-N

PCDD-1237｜$C12H4Cl4O2$｜1,2,3,7-四氯代双苯并对二𫫇己熳｜67028-18-6｜SKGXYFVQZVPEFP-UHFFFAOYSA-N

PCDD-1238｜$C12H4Cl4O2$｜1,2,3,8-四氯代双苯并对二𫫇己熳｜53555-02-5｜BXKLTNKYLCZOHF-UHFFFAOYSA-N

PCDD-1239｜$C12H4Cl4O2$｜1,2,3,9-四氯代双苯并对二𫫇己熳｜71669-26-6｜CMVHZKSHSHQJHS-UHFFFAOYSA-N

PCDD-1246｜$C12H4Cl4O2$｜1,2,4,6-四氯代双苯并对二𫫇己熳｜71669-27-7｜KQNBZUDHTCXCNA-UHFFFAOYSA-N

PCDD-1247｜$C12H4Cl4O2$｜1,2,4,7-四氯代双苯并对二𫫇己熳｜71669-28-8｜SMPHQCMJQUBTFZ-UHFFFAOYSA-N

PCDD-1248｜$C12H4Cl4O2$｜1,2,4,8-四氯代双苯并对二𫫇己熳｜71669-29-9｜XGIKODBWQSAEFQ-UHFFFAOYSA-N

PCDD-1249｜$C12H4Cl4O2$｜1,2,4,9-四氯代双苯并对二𫫇己熳｜71665-99-1｜WDAHVJCSSYOALR-UHFFFAOYSA-N

PCDD-1267｜$C12H4Cl4O2$｜1,2,6,7-四氯代双苯并对二𫫇己熳｜40581-90-6｜SAMLAWFHXZIRMP-UHFFFAOYSA-N

PCDD-1268｜$C12H4Cl4O2$｜1,2,6,8-四氯代双苯并对二𫫇己熳｜67323-56-2｜YYUFYZDSYHKVDP-UHFFFAOYSA-N

PCDD-1269｜$C12H4Cl4O2$｜1,2,6,9-四氯代双苯并对二𫫇己熳｜40581-91-7｜ZKMXKYXNLFLUCD-UHFFFAOYSA-N

PCDD-1278｜$C12H4Cl4O2$｜1,2,7,8-四氯代双苯并对二𫫇己熳｜34816-53-0｜YDZCLBKUTXYYKS-UHFFFAOYSA-N

PCDD-1279｜$C12H4Cl4O2$｜1,2,7,9-tetrachlorodibenzo-p-dioxin｜71669-23-3｜QIKHBBZEUNSCAF-UHFFFAOYSA-N

PCDD-1289｜$C12H4Cl4O2$｜1,2,8,9-tetrachlorodibenzo-p-dioxin｜62470-54-6｜WELWFAGPAZKSBG-UHFFFAOYSA-N

PCDD-1368｜$C12H4Cl4O2$｜1,3,6,8-tetrachlorodibenzo-p-dioxin｜33423-92-6｜OTQFXRBLGNEOGH-UHFFFAOYSA-N

PCDD-1369｜$C12H4Cl4O2$｜1,3,6,9-tetrachlorodibenzo-p-dioxin｜71669-24-4｜QAUIRDIJIUMMEP-UHFFFAOYSA-N

PCDD-1378｜$C12H4Cl4O2$｜1,3,7,8-tetrachlorodibenzo-p-dioxin｜50585-46-1｜VPTDIAYLYJBYQG-UHFFFAOYSA-N

PCDD-1379｜$C12H4Cl4O2$｜1,3,7,9-tetrachlorodibenzo-p-dioxin｜62470-53-5｜JMGYHLJVDHUACM-UHFFFAOYSA-N

PCDD-1469｜$C12H4Cl4O2$｜1,4,6,9-tetrachlorodibenzo-p-dioxin｜40581-93-9｜QTIIAIRUSSSOHT-UHFFFAOYSA-N

PCDD-1478｜$C12H4Cl4O2$｜1,4,7,8-tetrachlorodibenzo-p-dioxin｜40581-94-0｜FCRXUTCUWCJZJI-UHFFFAOYSA-N

PCDD-2378(2,3,7,8-TCDD)｜$C12H4Cl4O2$｜2,3,7,8-四氯代双苯并对二𫫇己熳｜1746-01-6｜HGUFODBRKLSHSI-UHFFFAOYSA-N

PCDD-12346｜$C12H3Cl5O2$｜1,2,3,4,6-五氯代双苯并对二𫫇己熳｜67028-19-7｜LNWDBNKKBLRAMH-UHFFFAOYSA-N

PCDD-12347｜$C12H3Cl5O2$｜1,2,3,4,7-pentachlorodibenzo-p-dioxin｜39227-61-7｜WRNGAZFESPEMCN-UHFFFAOYSA-N

PCDD-12367｜$C12H3Cl5O2$｜1,2,3,6,7-pentachlorodibenzo-p-dioxin｜71925-15-0｜RLGWDUHOIIWPGN-UHFFFAOYSA-N

PCDD-12368｜$C12H3Cl5O2$｜1,2,3,6,8-pentachlorodibenzo-p-dioxin｜71925-16-1｜VKDGHBBUEIIEHL-UHFFFAOYSA-N

PCDD-12369 (PCDD-14678)｜$C12H3Cl5O2$｜1,2,3,6,9-pentachlorodibenzo-p-dioxin｜82291-34-7｜NWKWRHSKKNELND-UHFFFAOYSA-N

PCDD-12378｜$C12H3Cl5O2$｜1,2,3,7,8-五氯代双苯并对二𫫇己熳｜40321-76-4｜FSPZPQQWDODWAU-UHFFFAOYSA-N

PCDD-12379 (PCDD-23468)｜$C12H3Cl5O2$｜1,2,3,7,9-pentachlorodibenzo-p-dioxin｜71925-17-2｜UAOYHTXYVWEPIB-UHFFFAOYSA-N

PCDD-12389 (PCDD-23467)｜$C12H3Cl5O2$｜1,2,3,8,9-pentachlorodibenzo-p-dioxin｜71925-18-3｜VUMZAVNIADYKFC-UHFFFAOYSA-N

PCDD-12467｜$C12H3Cl5O2$｜1,2,4,6,7-pentachlorodibenzo-p-dioxin｜82291-35-8｜SEKDDGLKEYEVQK-UHFFFAOYSA-N

PCDD-12468｜$C12H3Cl5O2$｜1,2,4,6,8-pentachlorodibenzo-p-dioxin｜71998-76-0｜SJJWALZHAWITMS-UHFFFAOYSA-N

PCDD-12469｜$C12H3Cl5O2$｜1,2,4,6,9-pentachlorodibenzo-p-dioxin｜82291-36-9｜GNQVSAMSAKZLKE-UHFFFAOYSA-N

PCDD-12478｜$C12H3Cl5O2$｜1,2,4,7,8-pentachlorodibenzo-p-dioxin｜58802-08-7｜QUPLGUUISJOUPJ-UHFFFAOYSA-N

PCDD-12479 (PCDD-13468)｜$C12H3Cl5O2$｜1,2,4,7,9-pentachlorodibenzo-p-dioxin｜82291-37-0｜QLBBXWPVEFJZEC-UHFFFAOYSA-N

PCDD-12489 (PCDD-13467)｜$C12H3Cl5O2$｜1,2,4,8,9-五氯代双苯并对二𫫇己熳｜82291-38-1｜KLLFLRKEOJCTGC-UHFFFAOYSA-N

PCDD-123467｜$C12H2Cl6O2$｜1,2,3,4,6,7-六氯代双苯并对二𫫇己熳｜58200-66-1｜NLBQVWJHLWAFGJ-UHFFFAOYSA-N

PCDD-123468｜$C12H2Cl6O2$｜1,2,3,4,6,8-hexachlorodibenzo-p-dioxin｜58200-67-2｜IMALTUQZEIFHJW-UHFFFAOYSA-N

PCDD-123469｜$C12H2Cl6O2$｜1,2,3,4,6,9-hexachlorodibenzo-p-dioxin｜58200-68-3｜UDYXCMRDCOVQLG-UHFFFAOYSA-N

PCDD-123478｜$C12H2Cl6O2$｜1,2,3,4,7,8-hexachlorodibenzo-p-dioxin｜39227-28-6｜WCYYQNSQJHPVMG-UHFFFAOYSA-N

PCDD-123678｜$C12H2Cl6O2$｜1,2,3,6,7,8-hexachlorodibenzo-p-dioxin｜57653-85-7｜YCLUIPQDHHPDJJ-UHFFFAOYSA-N

PCDD-123679 (PCDD-124678)｜$C12H2Cl6O2$｜1,2,3,6,7,9-hexachlorodibenzo-p-dioxin｜64461-98-9｜BQOHWGKNRKCEFT-UHFFFAOYSA-N

PCDD-123689 (PCDD-134678)｜$C12H2Cl6O2$｜1,2,3,6,8,9-hexachlorodibenzo-p-dioxin｜58200-69-4｜GZRQZUFXVFRKBI-UHFFFAOYSA-N

PCDD-123789 (PCDD-234678)｜$C12H2Cl6O2$｜1,2,3,7,8,9-六氯代双苯并对二𫫇己熳｜19408-74-3｜LGIRBUBHIWTVCK-UHFFFAOYSA-N

PCDD-124679｜$C12H2Cl6O2$｜1,2,4,6,7,9-六氯代双苯并对二𫫇己熳｜39227-62-8｜BSJDQMWAWFTDGD-UHFFFAOYSA-N

PCDD-124689 (PCDD-134679)｜$C12H2Cl6O2$｜1,2,4,6,8,9-六氯代双苯并对二𫫇己熳｜58802-09-8｜URELDHWUZUWPIU-UHFFFAOYSA-N

PCDD-1234678｜$C12HCl7O2$｜1,2,3,4,6,7,8-七氯代双苯并对二𫫇己熳｜35822-46-9｜WCLNVRQZUKYVAI-UHFFFAOYSA-N

PCDD-1234679｜$C12HCl7O2$｜1,2,3,4,6,7,9-七氯代双苯并对二𫫇己熳｜58200-70-7｜KTJJIBIRZGQFQZ-UHFFFAOYSA-N

PCDD-12346789｜$C12Cl8O2$｜八氯代双苯并对二𫫇己熳｜3268-87-9｜FOIBFBMSLDGNHL-UHFFFAOYSA-N

## 毒性对比

类别｜物质｜相对毒性｜半衰期（年）

双苯并对二𫫇己熳｜2,3,7,8-四氯代｜1｜7.2

1,2,3,7,8-五氯代｜1｜11.2

1,2,3,4,7,8-六氯代｜0.1｜9.8

1,2,3,6,7,8-六氯代｜0.1｜13.1

1,2,3,7,8,9-六氯代｜0.1｜5.1

1,2,3,4,6,7,8-七氯代｜0.01｜4.9

八氯代｜0.0003｜6.7

其他类二𫫇英物质｜如多氯联苯等｜不超过0.1｜类似