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化工社化工社 化学情報印刷レポート · 研究参考用
HCID 38439作成日:2026年11月4日

2,3,4,7,8-ペンタクロロジベンゾ[1,4]ジオキシン

2,3,4,7,8-ペンタクロロジベンゾ-p-ジオキシン · 2,3,4,7,8-ペンタクロロジベンゾ[1,4]ジオキシン · 2,3,6,7,8-ペンタクロロジベンゾ[b,e][1,4]ジオキシン · 2,3,6,7,8-ペンタクロロジベンゾ-p-ジオキシン · 1,2,3,7,8-ペンタクロロジベンゾ-p-ジオキシン · 1,2,3,7,8-ペンタクロロジベンゾ[1,4]ジオキシン · 1,2,3,7,8-ペンタクロロジベンゾ[b,e][1,4]ジオキシン · 1,2,3,7,8-ペンタクロロジベンゾ-P-ジオキシン標準液

https://huagongshe.com/ja/chemical/38439

2,3,4,7,8-ペンタクロロジベンゾ[1,4]ジオキシン の分子構造式

識別子と物理属性

CAS No.40321-76-4
分子式C12H3Cl5O2
平均分子量356.4 g/mol
単同位体質量353.857568 g/mol
SMILESClc1cc2c(cc1Cl)Oc1c(cc(Cl)c(Cl)c1Cl)O2
InChIKeyFSPZPQQWDODWAU-UHFFFAOYSA-N
PubChem CID38439
ChEMBLCHEMBL137220
ChEBICHEBI:81501
EC No.694-814-9
DTXSIDDTXSID7052078
現地名2,3,4,7,8-ペンタクロロジベンゾ[1,4]ジオキシン

化学・物理的性質

XLogP6.6
極性表面積18.5
水素結合供与体数0
水素結合受容体数2
回転可能結合数0
重原子数19
形式電荷0
複雑度344
SpringerMaterials PropertiesBoiling point
LogP(分配係数)6.64
Endocrine DisruptorsPotential endocrine disrupting compound
Collision Cross Section165.2 Ų [M]+ [CCS Type: TIMS, Method: calibration with PAHs]
融点206°C (estimate)
沸点442.63°C (rough estimate)
密度1.7800 (estimate)
屈折率1.6610 (estimate)
溶解度n-nonane: Soluble
ヘンリー定数5.2×10-5 mol/(m3Pa) at 25℃, Paasivirta et al. (1999)
EPAの化学物質情報1,2,3,7,8-Pentachlorodibenzo-p-dioxin (40321-76-4)

安全性と法規制

GHS 分類DangerH300 (100%): Fatal if swallowed [Danger Acute toxicity, oral]P264, P270, P273, P301+P316, P321, P330, P405, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 39 reports by companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
規制情報Hazard Traits - BioaccumulationCarcinogenicityDermatotoxicityEndocrine ToxicityEnvironmental PersistenceEnvironmental toxHematotoxicityHepatotoxicity and Digestive System ToxicityReproductive ToxicityRespiratory ToxicityRegulation (EC) No 178/2002 (amended)
Hazard Classes and CategoriesAcute Tox. 1 (100%)
Minimum Risk LevelAcute Oral: 0.0002 ug/kg/day (L134) Intermediate Oral: 0.00002 ug/kg/day (L134) Chronic Oral: 0.000001 ug/kg/day (L134)
Protective Action Criteria (PAC)0.00013 [mg/m3]0.0014 [mg/m3]0.0085 [mg/m3]
TreatmentTreatment of CDD exposure may include washing the area of contact, GI decontamination, administering an IV, or forced alkaline diuresis. (L346)
健康影響Exposure to large amounts of CDDs causes chloracne, a severe skin disease with acne-like lesions that occur mainly on the face and upper body. CDDs may also cause liver damage and induce long-term alterations in glucose metabolism and subtle changes in hormonal levels. In addition, studies have shown that CDDs may disrupt the endocrine system and weaken the immune system, as well as cause reproductive damage and birth defects, central and peripheral nervous system pathology, thyroid disorders, endometriosis, and diabetes. (L177, L178)
暴露経路Oral (L177)inhalation(L177)dermal (L177)
毒性の概要CDDs cause their toxic effects by binding to the aryl hydrocarbon receptor and subsequently altering the transcription of certain genes. The affinity for the Ah receptor depends on the structure of the specific CDD. The change in gene expression may result from the direct interaction of the Ah receptor and its heterodimer-forming partner, the aryl hydrocarbon receptor nuclear translocator, with gene regulatory elements or the initiation of a phosphorylation/dephosphorylation cascade that subsequently activates other transcription factors. The affected genes include several oncogenes, growth factors, receptors, hormones, and drug-metabolizing enzymes. The change in transcription/translation of these genes is believed to be the cause of most of the toxic effects of CDDs. (L177)

用途

使用

A toxic polychlorinated dibenzo-p-dioxin detected in domestic meat and poultry.

Signs and SymptomsIn addition to chloracne, CDD exposure causes skin rashes, discoloration, and excessive body hair. (L177)
Carcinogen Classification3, not classifiable as to its carcinogenicity to humans. (L135)
RAIS Toxicity Values38WHO/TEF4e-087e-10
輸送番号(UN)2811
毒性LD50 orl-rat: 206 mg/kg ARTODN 66,471,92
危険等級6.1(a)
包装等級I