Benz[a]anthracene , 98% , 56-55-3

Synonym(s):
1,2-Benzanthracene;Benzo[a]anthracene solution;Tetraphene

CAS NO.：56-55-3

Empirical Formula: C18H12

Molecular Weight: 228.29

MDL number: MFCD00003599

EINECS: 200-280-6

PRODUCT Properties

• Melting point: 157-159 °C(lit.)
• Boiling point: 437.6 °C(lit.)
• Density: 1.274 g/cm3
• vapor pressure: 54.8 (de Kruif, 1980)
• refractive index: 1.7710 (estimate)
• Flash point: -18 °C
• storage temp.: 2-8°C
• solubility: Soluble in ethanol, ether, acetone, benzene (U.S. EPA, 1985), toluene, xylenes, and other monoaromatic hydrocarbons.
• pka: >15 (Christensen et al., 1975)
• form: Solid
• color: Light Yellow
• Water Solubility: 9.4ug/L(25 ºC)
• Merck: 14,1062
• BRN: 1909298
• Henry's Law Constant: 1.48, 3.06, 6.22, 12.0, and 20.8 at 4.1, 11.0, 18.0, 25.0, and 31.0 °C, respectively (Bamford et al., 1998)
• Stability: Stable. Combustible. Incompatible with strong oxidizing agents.
• CAS DataBase Reference: 56-55-3(CAS DataBase Reference)
• IARC: 2B (Vol. 92, Sup 7) 2010
• EPA Substance Registry System: Benz[a]anthracene (56-55-3)

Description and Uses

1,2-Benzanthracene is available as colourless to yellow-brown fluorescent flakes or powder. It is stable, combustible, and incompatible with strong oxidising agents. On decomposition, 1,2-benzanthracene releases carbon monoxide, carbon dioxide, acrid smoke, and fumes. Exposures may cause irritation of the eyes, skin, and respiratory tract.

Benz[a]anthracene can be used in the synthesis of other polycyclic aromatic hydrocarbons such as tribenzo[a,c,f]tetraphene.2 It can also be used for phosphorescence applications.

Safety

• Symbol(GHS): GHS08,GHS09
• Signal word: Danger
• Hazard statements: H350-H410
• Precautionary statements: P201-P273-P308+P313-P501
• Hazard Codes: T,N,Xn,F
• Risk Statements: 45-50/53-67-65-38-11-63-43-36/37/38-23/24/25-39/23/24/25-52/53-40-51/53-20
• Safety Statements: 53-45-60-61-62-36/37-24/25-23-26-33-25-16-9
• RIDADR: UN 3077 9/PG 3
• WGK Germany: 3
• RTECS: CV9275000
• HazardClass: 6.1(b)
• PackingGroup: III
• HS Code: 29029000
• Hazardous Substances Data: 56-55-3(Hazardous Substances Data)
• Toxicity: LD₅₀ for mice by intravenous injection 10 mg/kg (Patnaik, 1992).