Synthesis of 2,4-dinitrophenol

Preparation of 2,4-dinitrophenol

Preparation of 2,4-dinitrophenol

Preparation of 2,4-dinitrophenol

20 g of 2,4-dinitrochlorobenzene are refluxed for 24 hours with 21 g  of anhydrous sodium carbonate dissolved in 225 ml of distilled water until oil disappears and complete solution is obtained. After cooling, the solution is acidified with hydrochloric acid and the precipitated 2,4-dinitrophenol collected, washed with cold water, and dried yielding 90 % with melting point 114° C. 2,4-dinitrophenol crystallizes from water in pale yellow tables.

Preparation of organic compounds, E. de. Barry Barnett, 85, 1912



InChI Key


Canonical SMILES


MeSH Synonyms

2,4 Dinitrophenol, 2,4-Dinitrophenol, 2,4-DNP

Depositor-Supplied Synonyms

2,4-dinitrophenol, 51-28-5, Aldifen, Solfo Black B, Tertrosulphur PBR, alpha-Dinitrophenol, Phenol, 2,4-dinitro-, Solfo Black G, Nitro kleenup, 1-Hydroxy-2,4-dinitrobenzene, 2,4-Dnp, Fenoxyl carbon N, Chemox PE, Solfo Black BB, Solfo Black SB, Dinitrofenolo, DINITROPHENOL, Dinofan, Tertrosulphur Black PB, Solfo Black 2B Supra, 2,4-Dinitrofenol, Maroxol-50, .alpha.-Dinitrophenol, Osmoplastic-R, Tertrosulfur pbr, Osmotox-Plus, RCRA waste number P048, NSC 1532, EK 102, Nitrophen (VAN), Nitrophene (VAN), 2,4-dinitro-phenol, Camello mosquito coils, X 32, Caswell No. 392, CHEBI:42017, Dinitrofenolo [Italian], Phenol, alpha-dinitro-, Phenol, .alpha.-dinitro-, RCRA waste no. P048, UNII-Q13SKS21MN, 2,4-Dinitrofenol [Dutch], 1’alpha-2,4-Dinitrophenol, Cobra salts (Impregna salts), Shirakiku brand mosquito coils, CCRIS 3102, HSDB 529, UFBJCMHMOXMLKC-UHFFFAOYSA-N, EINECS 200-087-7, Fenoxyl, EPA Pesticide Chemical Code 037509, AI3-01535, DSSTox_CID_523, Tertrosulfur black pb, DSSTox_RID_75640, DSSTox_GSID_20523, AF-936/31262030, DNF, CAS-51-28-5, Solfo Black, PubChem11250, Spectrum_001934, SpecPlus_000938, AC1L1BLR, Spectrum2_000673, Spectrum3_001694, Spectrum4_000913, Spectrum5_001670, WLN: WNR BQ ENW, Epitope ID:112424, Q13SKS21MN, SCHEMBL77643, BSPBio_003248, KBioGR_001406, KBioSS_002480, SPECTRUM330008, MLS001066358, 42170_ALDRICH, BIDD:ER0505, D198501_ALDRICH, DivK1c_007034, SPBio_000765, 34334_RIEDEL, ARONIS010084, CHEMBL273386, SR-1C5, SCHEMBL13973810, 34334_FLUKA, 42170_FLUKA, CTK1G9509, KBio1_001978, KBio2_002473, KBio2_005041, KBio2_007609, KBio3_002468, NSC1532, MolPort-001-011-561, HMS1923K21, HMS2233H07, HMS3372P06, NSC-1532, Tox21_201462, Tox21_300030, ANW-46655, BBL023448, CCG-39730, LS-154, STK397797, AKOS000118988, AKOS015912556, DB04528, MCULE-6678680789, NE10472, NCGC00091778-01, NCGC00091778-02, NCGC00091778-03, NCGC00091778-04, NCGC00091778-05, NCGC00091778-06, NCGC00254114-01, NCGC00259013-01, AJ-61331, AN-41595, KB-67467, SMR000471854, TR-032491, D0109, FT-0610210, 9456-EP2284174A1, 9456-EP2316829A1, C02496, 3B4-3141, BRD-K21910317-001-02-4, I14-48190, InChI=1/C6H4N2O5/c9-6-2-1-4(7(10)11)3-5(6)8(12)13/h1-3,9

Removed Synonyms

Nitrophene, Nitrophen, |A-dinitrophenol, Phenol, dinitro-, 2,4 Dinitrophenol, Phenol,4-dinitro-, DINITROPHENYLENE, CID1493, CID6394610, D019297, DNP, Hydroxy-[2-hydroxy-5-(hydroxy-oxo-azaniumyl)phenyl]-oxo-azanium, 25550-58-7, NIN

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