Pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene

C20H12

pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene

CAS205-82-3
GHS08 Gefahrensymbol: Gesundheitsgefahr – Gesundheitsgefahr
GHS09 Gefahrensymbol: Umweltgefährlich – Umwelt
Danger

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Identification

CAS Number
205-82-3
EC Number
205-910-3
UN Number
3077
Index Number
601-035-00-X
PubChem CID
9152

Physical-chemical properties

Molecular Formula
C20H12
Molar Mass
252.30 g/mol
IUPAC Name
pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene

Chemical Identifiers

InChI
InChI=1S/C20H12/c1-2-8-15-13(5-1)11-12-17-16-9-3-6-14-7-4-10-18(19(14)16)20(15)17/h1-12H
InChI Key
KHNYNFUTFKJLDD-UHFFFAOYSA-N

Overview

Pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene (CAS 205-82-3) is a polycyclic aromatic hydrocarbon with highly condensed ring structure and significant environmental persistence. This complex polycyclic aromatic hydrocarbon, with molecular formula C20H12 and molecular weight of 252.3 g/mol, represents one of the most structurally intricate compounds in its class. The pentacyclic framework consists of multiple fused aromatic rings arranged in a highly ordered three-dimensional configuration, resulting in exceptional chemical stability and distinctive physicochemical properties. As a member of the extended PAH family, this compound shares structural similarities with other complex aromatics such as benzo[e]pyrene, though its unique pentacyclic architecture distinguishes it from simpler polycyclic systems. The substance exhibits significant safety concerns, classified as carcinogenic category 1B under GHS regulations, requiring careful handling protocols and appropriate containment measures. Its environmental impact profile includes acute and chronic aquatic toxicity, necessitating strict disposal and emission controls. The compound's high degree of conjugation contributes to its chemical inertness under normal conditions, while its planar aromatic structure influences its interaction with biological systems and environmental matrices. Industrial applications primarily focus on advanced materials research, specialty polymer synthesis, and as an intermediate in the production of high-performance aromatic compounds. The substance also finds use in photochemical studies and as a reference standard in analytical chemistry applications, particularly in environmental monitoring and PAH analysis protocols. OYSI maintains reliable supply chains for this specialized chemical compound, ensuring consistent availability for qualified industrial customers across European markets.

Safety & Classification

Danger
Classification:

Carc. 1B; Aquatic Acute 1; Aquatic Chronic 1

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H350

May cause cancer.

H400

Very toxic to aquatic life.

H410

Very toxic to aquatic life with long lasting effects.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Transport (ADR)

UN Number3077
ADR Class9
Packing GroupIII
Tunnel Code-
Proper Shipping NameBenzo[j]fluoranthen
Marine PollutantNo

Frequently Asked Questions

What is pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene?

Pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene is a complex polycyclic aromatic hydrocarbon with the molecular formula C20H12 and CAS number 205-82-3. This substance has a molecular weight of 252.3 g/mol and features a highly condensed ring structure. It is classified as a Category 1B carcinogen and poses significant environmental hazards to aquatic life, requiring careful handling and specialized safety measures.

What are the physicochemical properties of pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene?

This polycyclic aromatic hydrocarbon typically appears as a solid at room temperature due to its complex ring structure and molecular weight of 252.3 g/mol. As a highly conjugated aromatic system, it exhibits limited solubility in polar solvents but may dissolve in organic solvents. The substance's extensive aromatic character contributes to its stability and potential for bioaccumulation, which underlies its environmental hazard classification.

What is pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene used for?

This substance is primarily used in specialized research applications and as an intermediate in organic synthesis due to its unique polycyclic structure. It may serve as a building block for advanced materials, pharmaceutical research, or as a reference standard in analytical chemistry. Given its carcinogenic classification, its use is restricted to professional settings with appropriate safety controls and typically limited to laboratory-scale applications rather than large-scale industrial processes.

How to handle pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene safely?

Safe handling requires comprehensive personal protective equipment including respiratory protection, chemical-resistant gloves, and protective clothing to prevent skin contact and inhalation. Work must be conducted in well-ventilated areas or under fume hoods due to the substance's carcinogenic properties (Category 1B). All personnel must be trained in carcinogen handling procedures, and exposure monitoring may be required. Contaminated materials should be treated as hazardous waste.

How to store pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene correctly?

Storage requires a cool, dry, well-ventilated area away from heat sources and incompatible materials. Containers must be tightly sealed and properly labeled with appropriate hazard warnings including GHS08 and GHS09 pictograms. Due to its carcinogenic classification, storage areas should be restricted to authorized personnel only. Secondary containment may be necessary to prevent environmental release, and storage conditions should minimize the risk of exposure during handling.

What to do in case of contact with pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene?

Immediate decontamination is crucial due to the substance's carcinogenic properties. For skin contact, remove contaminated clothing immediately and wash affected areas thoroughly with soap and water. In case of eye contact, flush with clean water for at least 15 minutes. If inhaled, move the person to fresh air immediately. Seek immediate medical attention for all exposure routes, informing medical personnel of the substance's carcinogenic classification and providing the safety data sheet.

How to dispose of pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene appropriately?

Disposal must be conducted through licensed hazardous waste management facilities capable of handling carcinogenic substances. The material cannot be disposed of in regular waste streams due to its dangerous properties classification. All contaminated materials including containers, protective equipment, and cleaning materials must be treated as hazardous waste. Disposal methods must comply with local, national, and EU waste regulations, and detailed waste documentation is typically required.

How to transport pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene?

Transportation is regulated under ADR Class 9 (Miscellaneous dangerous substances), Packing Group III, reflecting its hazardous properties. Packages must comply with UN packaging standards and bear appropriate hazard labels including GHS08 and GHS09 pictograms. Transport documents must include proper shipping names, hazard classifications, and emergency response information. Only authorized carriers trained in dangerous goods transport should handle shipments of this carcinogenic substance.

Is pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene subject to specific regulations?

This substance is subject to extensive regulatory oversight under REACH and CLP regulations due to its carcinogenic classification (Category 1B) and environmental hazards. Special authorization may be required for certain uses, and exposure limits are likely established. The substance requires classification and labeling with danger signal words and specific pictograms (GHS08, GHS09). Users must implement risk management measures and may need to report usage under various regulatory frameworks.

Where to buy pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene in Europe?

OYSI serves as a specialized European distributor for this complex chemical substance, providing regulatory-compliant supply with proper documentation and safety data sheets. As a carcinogenic substance with restricted applications, purchases typically require verification of legitimate research or industrial use and compliance with regulatory requirements. OYSI ensures proper packaging, labeling, and transport arrangements meeting ADR Class 9 requirements while providing technical support for safe handling and regulatory compliance.

Services for Pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene

ADR Consulting for Pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene

Pentacyclo[10.7.1.02,11.03,8.016,20]icosa-1(19),2(11),3,5,7,9,12,14,16(20),17-decaene is a dangerous good. We support you with labeling, packaging, and transport documentation.

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Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.