Benzo[a]pentacene is a polycyclic aromatic hydrocarbon (PAH) consisting of five fused benzene rings, with the molecular formula C22H14. It is a planar, non-polar molecule that is insoluble in water but soluble in organic solvents. Benzo[a]pentacene is formed during the incomplete combustion of organic materials, such as coal, oil, and tobacco, and is considered a potential environmental pollutant due to its persistence and potential carcinogenic properties. It is also used as a research tool in the study of PAHs and their effects on human health and the environment.

239-98-5

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Basic information
1. Product Name: BENZO[A]PENTACENE
2. Synonyms: BENZO[A]PENTACENE;Einecs 205-951-7;Isohexaphene
3. CAS NO:239-98-5
4. Molecular Formula: C₂₆H₁₆
5. Molecular Weight: 328.40524
6. EINECS: 205-951-7
7. Product Categories: N/A
8. Mol File: 239-98-5.mol
Chemical Properties
1. Melting Point: N/A
2. Boiling Point: 604.1°C at 760 mmHg
3. Flash Point: 314.6°C
4. Appearance: /
5. Density: 1.263g/cm³
6. Vapor Pressure: 6.64E-14mmHg at 25°C
7. Refractive Index: 1.842
8. Storage Temp.: N/A
9. Solubility: N/A
10. CAS DataBase Reference: BENZO[A]PENTACENE(CAS DataBase Reference)
11. NIST Chemistry Reference: BENZO[A]PENTACENE(239-98-5)
12. EPA Substance Registry System: BENZO[A]PENTACENE(239-98-5)
Safety Data
1. Hazard Codes: N/A
2. Statements: N/A
3. Safety Statements: N/A
4. WGK Germany:
5. RTECS:
6. HazardClass: N/A
7. PackingGroup: N/A
8. Hazardous Substances Data: 239-98-5(Hazardous Substances Data)

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Check Digit Verification of cas no

The CAS Registry Mumber 239-98-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 2,3 and 9 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 239-98:
(5*2)+(4*3)+(3*9)+(2*9)+(1*8)=75
75 % 10 = 5
So 239-98-5 is a valid CAS Registry Number.

InChI:InChI=1/C26H16/c1-2-7-19-12-22-15-24-16-26-20(10-9-17-5-3-4-8-25(17)26)13-23(24)14-21(22)11-18(19)6-1/h1-16H

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