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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HCID 7730Generated: October 23, 2026

4-Bromoanisole

1-BROMO-4-METHOXYBENZENE · P-BROMOANISOLE · 2-Bromoanisole,98% · 4-Bromoanisole,98% · 1-bromo-4-methoxy-benzen · 4-Bromoanisole,1-Bromo-4-methoxybenzene · p-Bromanisole · p-bromoanisol

https://huagongshe.com/en/chemical/7730

4-Bromoanisole molecular structure

Identifiers & Physical Properties

CAS No.104-92-7
Molecular formulaC7H7BrO
Average molar mass187.03 g/mol
Monoisotopic mass185.96802694 g/mol
SMILESCOc1ccc(Br)cc1
InChIKeyQJPJQTDYNZXKQF-UHFFFAOYSA-N
PubChem CID7730
ChEBICHEBI:47257
EC No.203-252-1
DTXSIDDTXSID2059308

Chemical & Physical Properties

XLogP2.8
Topological polar surface area9.2
Hydrogen bond donors0
Hydrogen bond acceptors1
Rotatable bonds1
Heavy atoms9
Formal charge0
Complexity77
Chemical classesOther Classes -> Halogenated Anisoles
SpringerMaterials PropertiesBoiling point
LogP (partition coefficient)3.15
Physical DescriptionClear light yellow liquidmp = 9-10 deg C[Sigma-Aldrich MSDS]
Melting point9-10 °C (lit.)
Boiling point223 °C (lit.)
Density1.494 g/mL at 25 °C (lit.)
Refractive indexn20/D 1.564(lit.)
Flash point202 °F
Storage conditionsStore below +30°C.
SolubilityChloroform (Sparingly), Ethyl Acetate (Slightly)immiscible
Physical stateLiquid
ColorClear colorless to slightly yellow
Merck14,1428
BRN1237590
Henry's law constant1.1×10-2 mol/(m3Pa) at 25℃, Pfeifer et al. (2001)
Dielectric constant7.4000000000000004
StabilityStable. Combustible. Incompatible with strong oxidizing agents.
InChI1S/C7H7BrO/c1-9-7-4-2-6(8)3-5-7/h2-5H,1H3
InChIKeyQJPJQTDYNZXKQF-UHFFFAOYSA-N
SMILESCOc1ccc(Br)cc1
CAS DataBase Reference104-92-7(CAS DataBase Reference)
EWG's Food Scores1
FDA UNIIU430F901J9
NIST Chemistry ReferenceBenzene, 1-bromo-4-methoxy-(104-92-7)
EPA Substance Registry SystemBenzene, 1-bromo-4-methoxy- (104-92-7)
UNSPSC Code12352100
NACRESNA.22
GHS pictogramGHS07
Signal wordWarning
GHS hazard statementsH303-H315
GHS precautionary statementsP264-P280-P302+P352-P312-P362+P364-P332+P313
Personal protective equipment (PPE)Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
Hazard symbolsXn
Safety statements (S)23-24/25
Water hazard class (WGK)2
RTECS numberBZ8501000
F8
TSCA inventory statusTSCA listed
Customs code29093038
Storage class10 - Combustible liquids
Hazard classAcute Tox. 4 OralSkin Irrit. 2
ToxicityLD50 orl-mus: 2200 mg/kg GISAAA 44(12),19,79
REACH registrationsActive

Safety & Regulations

GHS classificationThis chemical does not meet GHS hazard criteria for 3.3% (4 of 123) of reports.WarningH315 (12.2%): Causes skin irritation [Warning Skin corrosion/irritation]P260, P264, P273, P280, P302+P352, P319, P321, P332+P317, P362+P364, and P501 (click each P-code to see the statement)Aggregated GHS information provided per 123 reports by companies from 6 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.
Regulatory informationChemical: Benzene, 1-bromo-4-methoxy-Status: Active Update: 23-03-2023 https://echa.europa.eu/registration-dossier/-/registered-dossier/11455Benzene, 1-bromo-4-methoxy-: Does not have an individual approval but may be used as a component in a product covered by a group standard. It is not approved for use as a chemical in its own right.
Hazards summaryCauses ataxia, coma, and cough in inhalation lethal-concentration studies of miceCauses tetany in oral lethal-dose studies of mice and rats[RTECS] A skin irritantHarmful by ingestion[ECHA REACH Registrations] May cause irritation[Sigma-Aldrich MSDS] See Anisole.
Hazard Classes and CategoriesSkin Irrit. 2 (12.2%)
Adverse effectsNeurotoxin - Acute solvent syndrome
Toxicity DataLC50 (mouse) = 20 mg/m3
F8
Personal protective equipment (PPE)Eyeshields, Gloves, multi-purpose combination respirator cartridge (US)
Water hazard class (WGK)2
TSCA inventory statusTSCA listed
RTECS numberBZ8501000
Customs code29093038
ToxicityLD50 orl-mus: 2200 mg/kg GISAAA 44(12),19,79
Signal wordWarning
GHS pictogramGHS07
Hazard symbolsXn
Safety statements (S)23-24/25
Storage class10 - Combustible liquids
GHS hazard statementsH303-H315
REACH registrationsActive
Hazard classAcute Tox. 4 OralSkin Irrit. 2
GHS precautionary statementsP264-P280-P302+P352-P312-P362+P364-P332+P313

Applications & Uses

Uses

4-Bromoanisole finds application as an intermediate in synthetic chemistry. It is used in the preparation of aryl 1,3-diketones and ethyl 4-methoxycinnamate. It is a used as a brominating reagent. Further, it is used in Suzuki coupling reaction with phenylboronic acid as well as in Heck reaction.

General Description

4-Bromoanisole is a useful brominating reagent. It is formed as reaction product in the reaction between HOBr and anisole. Suzuki coupling of 4-bromoanisole with phenylboronic acid catalyzed by palladium pincer complexes has been studied. Heck Reaction of 4-bromoanisole with ethyl acrylates in room-temperature ionic liquids is reported to afford ethyl 4-methoxycinnamate.

Preparation & Synthesis

Preparation

4-Bromoanisole is obtained by reacting p-bromophenol with dimethyl sulfate.