2,2',3,4',5,5',6-Heptabromobiphenyl
Grundinformationen
- CAS
84303-49-1- Standard-SMILES
Brc1cc(Br)c(-c2c(Br)c(Br)cc(Br)c2Br)cc1Br- InChIKey
RBWZYLZOKXWBII-UHFFFAOYSA-N- Summenformel
- C12H3Br7
- Durchschnittliche Molmasse
- 706,5 g/mol
- Monoisotopische Masse
- 699,45184
Überblick
2,2',3,4',5,5',6-Heptabromobiphenyl is a polybrominated biphenyl. Polybrominated biphenyls (PBBs) are a group of 209 synthetic organic compounds with 1-10 bromine atoms attached to biphenyl. They can be used as flame retardants and may be added to the plastics used to make products like computer monitors, televisions, textiles, and plastic foams to make them difficult to burn. However, the use of PBBs is banned or restricted in most areas due to their toxicity and persistence in the environment. (L628, L629)
Namen und Bezeichner
- Bevorzugter Name
- 2,2',3,4',5,5',6-Heptabromobiphenyl
- IUPAC
- 1,2,4,5-tetrabromo-3-(2,4,5-tribromophenyl)benzene
Namen und Synonyme
2,2',3,4',5,5',6-HeptabromobiphenylUNII-T0058B8OW9PBB 1871,1'-Biphenyl, 2,2',3,4',5,5',6-heptabromo-T0058B8OW9DTXSID502332652,2',3,4',5,5',6-HEPTABROMO-1,1'-BIPHENYL1,2,4,5-tetrabromo-3-(2,4,5-tribromophenyl)benzeneRefChem:80569DTXCID5015575684303-49-1NS00124911
Weitere Namen anzeigen
Q27289487
Datenbank-Bezeichner
- CAS
84303-49-1- PubChem CID
- 158631
- DTXSID
DTXSID50233265- UNII
- T0058B8OW9
Eigenschaften
Berechnete Struktureigenschaften
- XLogP
- 8,4
- Polarare Oberfläche (TPSA)
- 0 Ų
- H-Brücken-Donoren
- 0
- H-Brücken-Akzeptoren
- 0
- Frei drehbare Bindungen
- 1
- Schwere Atome
- 19
- Formalladung
- 0
- Komplexität
- 298
Sicherheit und Regulatorisches
Sicherheitsangaben dienen nur zur Orientierung und ersetzen weder das Sicherheitsdatenblatt (SDB) des Lieferanten noch geltende Vorschriften oder eine fachliche Bewertung.
Sicherheit und Schutzausrüstung
Minimum Risk LevelAcute Oral: 0.01 mg/kg/day (L134)
Toxikologische Informationen
Treatment
EYES: irrigate opened eyes for several minutes under running water. INGESTION: do not induce vomiting. Rinse mouth with water (never give anything by mouth to an unconscious person). Seek immediate medical advice. SKIN: should be treated immediately by rinsing the affected parts in cold running water for at least 15 minutes, followed by thorough washing with soap and water. If necessary, the person should shower and change contaminated clothing and shoes, and then must seek medical attention. INHALATION: supply fresh air. If required provide artificial respiration.
Health EffectsPBB exposure may cause weight loss, skin disorders (such as acne), nervous and immune systems effects, and effects on the liver, kidneys, and thyroid gland. (L628)
Exposure RoutesOral (L628) ; inhalation (L628) ; dermal (L628)
Toxicity Summary
The exact mechanism of toxicty of PBBs varies depending on the specific congener. The predominant interaction is believed to involve the aryl hydrocarbon receptor (AhR). PBBs bind to and activate the AhR, which in turn initiates the transcriptional upregulation of a number of genes, affecting biochemical and endocrine pathways, cell cycle regulation, morphogenesis, oxidative stress response, and various other processes. This results in the numerous toxic responses characteristic of PBBs. Some of the known induced genes include the cytochrome P-450-dependent monooxygenases CYP1A1 and CYP1A2. (L628)
Signs and SymptomsSymptoms of PBB exposure may include nausea, abdominal pain, loss of appetite, joint pain, fatigue, and weakness. (L629)
Chemie und Industrie
Pharmakologische Informationen
Metabolism/Metabolites
PBBs can be absorbed via oral, inhalation, and dermal routes. Due to their lipophilic nature, PBBs, especially the highly brominated congeners, tend to accumulate in lipid-rich tissues such as the liver, adipose, skin, and breast milk. Certain PBB compounds are metabolized by the microsomal monooxygenase system catalyzed by cytochrome P-450 of the type induced by phenobarbital. The rate of metabolism may depends on the bromine substitution pattern. PBB congeners of low bromine content are transformed into hydroxylated derivatives that are predominately eliminated in the urine. Highly brominated congeners are either retained or excreted unchanged in the feces. (L628)
Verwendung und Herstellung
Uses
PBBs can be used as flame retardants and may be added to the plastics used to make products like computer monitors, televisions, textiles, and plastic foams to make them difficult to burn. However, the use of PBBs is banned or restricted in most areas due to their toxicity and persistence in the environment. (L628, L629)
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