1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one

1-(1,3-苯并二氧戊环-5-基)-2-溴乙酮

Also known as: 1-(benzo[d][1,3]dioxol-5-yl)-2-bromoethanone, 5-(bromoacetyl)-1,3-benzodioxole, 1-(1,3-benzodioxol-5-yl)-2-bromo-1-ethanone, 1-(1,3-benzodioxol-5-yl)-2-bromoethanone, 1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one, 3,4-(methylenedioxy)phenacyl bromide, BUTTPARK 98\04-01, MFCD01910077

1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one (CAS 40288-65-1) is a compound in the Ketones category listed in the Jingsj chemical database. It has the molecular formula C14H18ClN3O and a molecular weight of 279.765 g/mol. It is also known as 1-(benzo[d][1,3]dioxol-5-yl)-2-bromoethanone, 5-(bromoacetyl)-1,3-benzodioxole and 1-(1,3-benzodioxol-5-yl)-2-bromo-1-ethanone. Key properties include a melting point of 91-93ºC, a boiling point of 343.5ºC at 760 mmHg, a density of 1.672g/cm3 and a flash point of 161.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 40288-65-1
Jingsj CID: J-34110-9
Molecular Formula: C₁₄H₁₈ClN₃O
Chinese Name: 1-(1,3-苯并二氧戊环-5-基)-2-溴乙酮
Molecular Weight: 279.765 g/mol
Category: Ketones
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	91-93ºC
Boiling Point	343.5ºC at 760 mmHg
Density	1.672g/cm3
Flash Point	161.5ºC
Exact Mass	279.113831
PSA	35.53000
LogP	1.99290
Refractive Index	1.606

Customs & Trade Information

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one?

The CAS number of 1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one is 40288-65-1.

What are the molecular formula and molecular weight of 1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one?

1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one has molecular formula C14H18ClN3O and molecular weight 279.765 g/mol.

What are the upstream and downstream products of 1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one?

For 1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one, Upstream Products: 3,4-Methylenedioxyacetophenone, Piperonylonitrile; Downstream Products: 3,4-Methylenedioxyacetophenone, 2-Azido-1-(1,3-benzodioxol-5-yl)ethanone, 2-Amino-1-(benzo[d][1,3]dioxol-5-yl)ethanone hydrochloride.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1-(1,3-benzodioxol-5-yl)-2-bromoethan-1-one (CAS 40288-65-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-34110-9 (accessed 2026-10-28).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.