| | Identification | More |  | [Name] 
 Benzofuran-2-carboxylic acid
 |  | [CAS] 
 496-41-3
 |  | [Synonyms] 
 1-BENZOFURAN-2-CARBOXYLIC ACID
 2,3-BENZOFURAN-2-CARBOXYLIC ACID
 2-BENZOFURANCARBOXYLIC ACID
 4,5-BENZOFURAN-2-CARBOXYLIC ACID
 AKOS 91692
 AKOS AUF2077
 AURORA 2460
 BENZO[B]FURAN-2-CARBOXYLIC ACID
 BENZOFURAN-2-CARBOXYLIC ACID
 COUMARILIC ACID
 COUMARONE-2-CARBOXYLIC ACID
 OTAVA-BB BB0125160292
 RARECHEM AL BE 0556
 TIMTEC-BB SBB000137
 2-Carboxybenzofuran
 benzfuran-2-Carboxylic acid
 2,3-Benzofuran-2-carboxylic acid, 98+%
 Benzofuran-2-carboxylicacid=Coumarilicacid
 Benzofuran-2-carboxylic acid 97%
 Benzo[b]furan-2-carboxylic acid, HPLC 98%
 |  | [EINECS(EC#)] 
 207-818-9
 |  | [Molecular Formula] 
 C9H6O3
 |  | [MDL Number] 
 MFCD00005848
 |  | [Molecular Weight] 
 162.14
 |  | [MOL File] 
 496-41-3.mol
 | 
 | Chemical Properties | Back Directory |  | [Appearance] 
 white to light yellow crystal powde
 |  | [Melting point ] 
 193-196 °C (lit.)
 |  | [Boiling point ] 
 310-315°C
 |  | [density ] 
 1.2599 (rough estimate)
 |  | [refractive index ] 
 1.5380 (estimate)
 |  | [Fp ] 
 310-315°C
 |  | [storage temp. ] 
 Keep in dark place,Sealed in dry,Room Temperature
 |  | [solubility ] 
 soluble in Methanol,Ethanol,Acetone
 |  | [form ] 
 Crystals or Powder
 |  | [pka] 
 3.12±0.30(Predicted)
 |  | [color ] 
 White to yellow
 |  | [Water Solubility ] 
 partially soluble
 |  | [Detection Methods] 
 HPLC,NMR,MS
 |  | [Merck ] 
 14,2561
 |  | [BRN ] 
 124204
 |  | [LogP] 
 2.410
 |  | [CAS DataBase Reference] 
 496-41-3(CAS DataBase Reference)
 |  | [NIST Chemistry Reference] 
 Benzofuran-2-carboxylic acid(496-41-3)
 |  | [EPA Substance Registry System] 
 496-41-3(EPA Substance)
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 Xi
 |  | [Risk Statements ] 
 R36/37/38:Irritating to eyes, respiratory system and skin .
 |  | [Safety Statements ] 
 S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
 S37/39:Wear suitable gloves and eye/face protection .
 |  | [WGK Germany ] 
 3
 
 |  | [RTECS ] 
 DF6490000
 
 |  | [Hazard Note ] 
 Irritant
 |  | [TSCA ] 
 Yes
 |  | [HazardClass ] 
 IRRITANT
 |  | [HS Code ] 
 29321900
 |  | [Toxicity] 
 mouse,LD50,intravenous,320mg/kg (320mg/kg),U.S. Army Armament Research & Development Command, Chemical Systems Laboratory, NIOSH Exchange Chemicals.  Vol. NX#02495,
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 white to light yellow crystal powde
 |  | [Uses] 
 
 Benzofuran-2-carboxylic acid was used in the synthesis of the oxymethyl-modified coumarinic acid-based cyclic DADLE (H-Tyr-D-Ala-Gly-Phe-D-Leu-OH) prodrug. |  | [Synthesis Reference(s)] 
 Journal of the American Chemical Society, 73, p. 872, 1951 DOI: 10.1021/ja01146a532
 Organic Syntheses, Coll. Vol. 3, p. 209, 1955
 |  | [Purification Methods] 
 The acid crystallises from water. [Beilstein 18/6 V 419.]
 | 
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