| | Identification | More |  | [Name] 
 4'-Hydroxypropiophenone
 |  | [CAS] 
 70-70-2
 |  | [Synonyms] 
 1-(4-METHOXYPHENYL)ETHANONE
 4-ACETOANISOLE
 4-ACETYLANISOLE
 4-HYDROXYPHENYL ETHYL KETONE
 4'-HYDROXYPROPIOPHENONE
 4-HYDROXYPROPIOPHENONE
 4'-METHOXYACETOPHENONE
 4-METHOXYACETOPHENONE
 4-METHOXYPHENYLETHANONE
 ACETANISOLE
 AKOS 90580
 AKOS BBS-00003216
 AKOS BBS-00003225
 AURORA 5371
 ETHYL 4-HYDROXYPHENYL KETONE
 FEMA 2005
 LABOTEST-BB LT00855519
 LABOTEST-BB LT01595901
 P-ACETANISOLE
 P-ACETYLANISOLE
 |  | [EINECS(EC#)] 
 202-815-9
 |  | [Molecular Formula] 
 C9H10O2
 |  | [MDL Number] 
 MFCD00008745
 |  | [Molecular Weight] 
 150.17
 |  | [MOL File] 
 70-70-2.mol
 | 
 | Safety Data | Back Directory |  | [Hazard Codes ] 
 Xn,Xi
 |  | [Risk Statements ] 
 R36/37/38:Irritating to eyes, respiratory system and skin .
 |  | [Safety Statements ] 
 S37:Wear suitable gloves .
 S24/25:Avoid contact with skin and eyes .
 S36:Wear suitable protective clothing .
 S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
 |  | [WGK Germany ] 
 3
 
 |  | [RTECS ] 
 UH1925000
 
 |  | [TSCA ] 
 Yes
 |  | [HS Code ] 
 29145000
 |  | [Safety Profile] 
 Poison by 
intraperitoneal, subcutaneous, and parenteral 
routes. An experimental teratogen. Other 
experimental reproductive effects. A 
flammable liquid. When heated to 
decomposition it emits acrid smoke and 
irritating fumes. See also KETONES.
 |  | [Hazardous Substances Data] 
 70-70-2(Hazardous Substances Data)
 |  | [Toxicity] 
 LD50 orally in Rabbit: 11800 mg/kg
 | 
 | Hazard Information | Back Directory |  | [Chemical Properties] 
 white powder
 |  | [Uses] 
 gonadotropic hormone inhibitor
 |  | [Uses] 
 Intermediates of Liquid Crystals
 |  | [Uses] 
 p-Hydroxypropiophenone is a 4-hydroxyphenyl ketone used in the preparation of potential antitumor agents. p-Hydroxypropiophenone is a lignin degrradation product.
 |  | [Definition] 
 ChEBI: P-Hydroxypropiophenone is a member of acetophenones.
 |  | [Preparation] 
 Preparation by Fries rearrangement of phenyl propionate
 with aluminium chloride in refluxing carbon disulfide ? then at 130–150° for 2–3 h after solvent elimination (45–50%)
 with aluminium chloride in nitrobenzene at 50° for 18 h (72%) or at ? 20° for 48 h (60%)
 with aluminium chloride in nitromethane at 20° for 7–8 days (80%)
 with aluminium chloride in chlorobenzene using microwave irradiation for ? 3 min at 106° (62%)
 with aluminium chloride in ethylene dichloride at 95° for 5 h or in heptane at ? 80–90° for 7 h (36%), in benzene or in tetrachloroethane at 80°; with aluminium chloride in the presence of propionyl chloride at 50–60° for ? 6 h (49%)
 with aluminium chloride without solvent at 50° for 10 h
 with titanium tetrachloride in nitromethane at 20° for 7 days (56%) or ? without solvent at 50° for 10 h (39%)
 with polyphosphoric acid at 100° (61%)
 with boron trifluoride at 50° for 3 h (46%)
 with stannic chloride at 50° for 3 h (10%).
 |  | [Synthesis Reference(s)] 
 The Journal of Organic Chemistry, 30, p. 2491, 1965 DOI: 10.1021/jo01018a528
 |  | [target] 
 Estrogen receptor
 |  | [Purification Methods] 
 4'-Hydroxypropiophenone [70-70-2] M 150.2, m 149o, b 140-145o/0.5mm, 8.05. Crystallise the phenone from H2O (m 149.8-150.2o) or EtOH (m 147o). The benzoyl derivative has m 117o, and the semicarbazone has m 183o (EtOH). [Beilstein 8 H 102, 8 II 104, 8 III 379.]
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