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3,4-Dimethoxyphenethyl bromide

Also known as: 4-(2-Bromoethyl)-1,2-dimethoxybenzene, 2-Methoxy-4-(2-bromoethyl)anisole, 3,4-Dimethoxy-1-(2-bromoethyl)benzene, 1,2-dimethoxy-4-(2-bromoethyl)benzene, 1-(2-bromoethyl)-3,4-dimethoxybenzene, 1-bromo-2-(3,4-dimethoxyphenyl)ethane, 2-(3,4-dimethoxyphenyl)-ethyl bromide, SKL235

3,4-Dimethoxyphenethyl bromide (CAS 40173-90-8) is a compound in the Aromatic Hydrocarbons category listed in the Jingsj chemical database. It has the molecular formula C10H13BrO2 and a molecular weight of 245.11300 g/mol. Key properties include a melting point of 52-56ºC(lit.), a boiling point of 130-131ºC3 mm Hg(lit.), a density of 1.336g/cm3 and a flash point of >110.0 °C. It is classified under GHS with signal word Danger and hazard statements H301 — Toxic if swallowed, H319 — Causes serious eye irritation and H400 — Very toxic to aquatic life. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
40173-90-8
Jingsj CID
J-1192580-7
Molecular Formula
C10H13BrO2
Molecular Weight
245.11300 g/mol
Category
Aromatic Hydrocarbons
Last updated
11/3/2026
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Physicochemical Properties

Melting Point52-56ºC(lit.)
Boiling Point130-131ºC3 mm Hg(lit.)
Density1.336g/cm3
Flash Point>110.0 °C
Exact Mass244.01000
PSA18.46000
LogP2.64120
Refractive Index1.533

GHS Safety & Compliance

Acute Toxicity / Environmental HazardSignal word: Danger
  • H301 — Toxic if swallowed
  • H319 — Causes serious eye irritation
  • H400 — Very toxic to aquatic life

Customs & Trade Information

HS Code2909309090
Summary2909309090 other aromatic ethers and their halogenated, sulphonated, nitrated or nitrosated derivatives VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:5.5% General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 3,4-Dimethoxyphenethyl bromide?

The CAS number of 3,4-Dimethoxyphenethyl bromide is 40173-90-8.

What are the molecular formula and molecular weight of 3,4-Dimethoxyphenethyl bromide?

3,4-Dimethoxyphenethyl bromide has molecular formula C10H13BrO2 and molecular weight 245.11300 g/mol.

Is 3,4-Dimethoxyphenethyl bromide hazardous?

3,4-Dimethoxyphenethyl bromide has GHS signal word Danger and hazard statements H301 — Toxic if swallowed; H319 — Causes serious eye irritation; H400 — Very toxic to aquatic life.

What are the upstream and downstream products of 3,4-Dimethoxyphenethyl bromide?

For 3,4-Dimethoxyphenethyl bromide, Upstream Products: 3,4-Dimethoxyphenethyl alcohol, Tetrabromomethane, (3,4-Dimethoxyphenyl)acetaldehyde; Downstream Products: 3,4-Dimethoxystyrene, 3,4-Dimethoxyphenethylamine, 1-[2-(3,4-dimethoxyphenyl)ethyl]hydrazine.

Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "3,4-Dimethoxyphenethyl bromide (CAS 40173-90-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1192580-7 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.