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| CAS No.: | 213-46-7 |
|---|---|
| Name: | Picene |
| Molecular Structure: | |
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| Formula: | C22H14 |
| Molecular Weight: | 278.353 |
| Synonyms: | 1,2:7,8-Dibenzophenanthrene;Benzo[a]chrysene; Dibenzo[a,i]phenanthrene; NSC 406006; [5]Phenacene |
| Density: | 1.232g/cm3 |
| Melting Point: | 366-367° |
| Boiling Point: | 519°Cat760mmHg |
| Flash Point: | 264.5°C |
| Solubility: | 2.5ug/L(27 oC) |
| Safety: | Questionable carcinogen with experimental carcinogenic and neoplastigenic data. When heated to decomposition it emits acrid smoke and irritating fumes. |
| PSA: | 0.00000 |
| LogP: | 6.29940 |
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Chemistry
MF: C22H14
MW: 278.35
EINECS: 205-918-7
IUPAC Name: picene
Storage temp: 2-8°C
Density: 1.232 g/cm3
Flash Point: 264.5 °C
Index of Refraction: 1.811
Enthalpy of Vaporization: 76.18 kJ/mol
Boiling Point: 519 °C at 760 mmHg
Vapour Pressure: 2.34E-10 mmHg at 25°C
Product Categories: Alphabetic ; P ; PER - POLA
Synonyms: 1,2,7,8-Dibenzphenanthrene ; 3,4-Benzchrysene ; Benzo(a)chrysene ; benzo[a]chrysene ; Beta,beta-Binaphthyleneethene ; Dibenzo(a,i)phenanthrene
Following is the molecular structure of Picene (213-46-7):
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Toxicity Data With Reference
| 1. | skn-mus TDLo:15,142 µg/kg/112W-I:NEO | CRNGDP Carcinogenesis. 11 (1990),1721. | ||
| 2. | scu-mus TDLo:445 µg/kg:CAR | CRNGDP Carcinogenesis. 11 (1990),1721. |
Safety Profile
Questionable carcinogen with experimental carcinogenic and neoplastigenic data. When heated to decomposition it emits acrid smoke and irritating fumes.
Safety Information of Picene (213-46-7):
RIDADR: 2811
HazardClass: 6.1(b)
PackingGroup: III
Specification
Picene (213-46-7) is a hydrocarbon found in the pitchy residue obtained in the distillation of peat tar and of petroleum. This is distilled to dryness and the distillate repeatedly recrystallized from cymene. It may be synthetically prepared by the action of anhydrous aluminium chloride on a mixture of naphthalene and 1,2-dibromoethane, or by distilling a-dinaphthostilbene. It crystallizes in large colorless plates which possess a blue fluorescence. It is soluble in concentrated sulfuric acid with a green color. Chromic acid in glacial acetic acid solution oxidizes it to picene-quinone, picene-quinone carboxylic acid, and finally to phthalic acid.