| | Identification | More |  | [Name] 
 AZULENE
 |  | [CAS] 
 275-51-4
 |  | [Synonyms] 
 AZULEN
 AZULENE
 BICYCLO(5.3.0)-DECA-1,3,5,7,9-PENTAENE
 BICYCLO[5.3.0]DECAPENTAENE
 CYCLOPENTACYCLOHEPTEN
 CYCLOPENTACYCLOHEPTENE
 LABOTEST-BB LT00007822
 Azunamic
 Azusalen [as sodium sulfonate]
 Bicyclo(0.3.5)deca-1,3,5,7,9-pentaene
 Bicyclo(5.3.0)-1,3,5,7,9-decapentaene
 BICYCLO(5.3.0)-DECA-2,4,6,8,10-PENTAENE
 bicyclo[0.3.5]deca-1,3,5,7,9-pentaene
 bicyclo[5.3.0]deca-2,4,6,8,10-pentaene
 Soluble azulene
 AZULENE OEKANAL
 AZULENE, FOR GC
 AZULENE OEKANAL  100 MG
 Azulene,99%
 AZULENE(RG)
 |  | [EINECS(EC#)] 
 205-993-6
 |  | [Molecular Formula] 
 C10H8
 |  | [MDL Number] 
 MFCD00003810
 |  | [Molecular Weight] 
 128.17
 |  | [MOL File] 
 275-51-4.mol
 | 
 | Chemical Properties | Back Directory |  | [Appearance] 
 Blue Crystal
 |  | [Melting point ] 
 98-100 °C(lit.)
 |  | [Boiling point ] 
 242 °C(lit.)
 |  | [density ] 
 1.0530
 |  | [refractive index ] 
 1.5736 (estimate)
 |  | [Fp ] 
 241-243°C
 |  | [storage temp. ] 
 Store at +2°C to +8°C.
 |  | [solubility ] 
 Soluble in organic solvents.
 |  | [form ] 
 Fine Crystalline Powder
 |  | [color ] 
 Dark blue
 |  | [Stability:] 
 Stable. Combustible. Incompatible with strong oxidizing agents.
 |  | [Merck ] 
 14,926
 |  | [BRN ] 
 969517
 |  | [InChIKey] 
 CUFNKYGDVFVPHO-UHFFFAOYSA-N
 |  | [LogP] 
 3.200
 |  | [Uses] 
 azulene is renowned as an anti-inflammatory, calming, and soothing agent. excellent for sensitive skin, azulene is a german chamomile derivative with a characteristic deep blue color. Careful, it stains!
 |  | [CAS DataBase Reference] 
 275-51-4(CAS DataBase Reference)
 |  | [EPA Substance Registry System] 
 Azulene (275-51-4)
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 N
 |  | [Risk Statements ] 
 R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment .
 |  | [Safety Statements ] 
 S61:Avoid release to the environment. Refer to special instructions safety data sheet .
 |  | [RIDADR ] 
 UN 3077 9/PG 3
 
 |  | [WGK Germany ] 
 2
 
 |  | [RTECS ] 
 CO4570000
 
 |  | [F ] 
 8
 |  | [TSCA ] 
 Yes
 |  | [HS Code ] 
 29029000
 |  | [Toxicity] 
 LD50 orl-rat: >4 g/kg DRUGAY 6,13,82
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 Azulene(275-51-4) is a blue crystalline compound with the chemical formula C10H8 and a melting point of 99°C. It contains afive-membered ring fused to a seven-membered ring and has aromatic properties. When heated it is converted into naphthalene.
 |  | [Definition] 
 ChEBI: A mancude carbobicyclic parent consisting of a cycloheptatriene and cyclopentadiene rings.
 |  | [Synthesis Reference(s)] 
 Journal of the American Chemical Society, 75, p. 2386, 1953 DOI: 10.1021/ja01106a030
 Tetrahedron Letters, 23, p. 495, 1982 DOI: 10.1016/S0040-4039(00)86871-9
 |  | [Safety Profile] 
 Poison by intraperitoneal,intravenous, and subcutaneous routes. When heated todecomposition it emits acrid smoke and irritating vapors.
 |  | [Source] 
 Azulene is a natural product and function as pigment in living organisms like plants, fungi etc. This compound was first isolated from the German Chamomile and later from yarrow, wormwood and other plants as oily liquid.
 |  | [storage] 
 Store at -20°C
 |  | [Purification Methods] 
 Crystallise azulene from EtOH. It has UV max 270nm (log 4.72) in hexane. [Platner & Magyar Helv Chim Acta 25 581 1942, Beilstein 5 IV 1636.]
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