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4-Bromobenzenediazonium tetrafluoroborate

Also known as: 4-bromobenzenediazonium tetrafluoroborate, p-bromobenzenediazonium tetrafluoroborate, 4-bromobenzenediazonium,tetrafluoroborate

4-Bromobenzenediazonium tetrafluoroborate (CAS 673-40-5) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C6H4BBrF4N2 and a molecular weight of 270.818 g/mol. Key property: a melting point of 135ºC. It is classified under GHS with signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
673-40-5
Jingsj CID
J-27176-1
Molecular Formula
C6H4BBrF4N2
Molecular Weight
270.818 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point135ºC
Exact Mass269.958710
PSA28.15000
LogP4.23368

GHS Safety & Compliance

CorrosionSignal word: Danger
  • H314 — Causes severe skin burns and eye damage

Customs & Trade Information

HS Code2927000090
Summary2927000090 other diazo-, azo- or azoxy-compounds。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

Frequently Asked Questions

What is the CAS number of 4-Bromobenzenediazonium tetrafluoroborate?

The CAS number of 4-Bromobenzenediazonium tetrafluoroborate is 673-40-5.

What are the molecular formula and molecular weight of 4-Bromobenzenediazonium tetrafluoroborate?

4-Bromobenzenediazonium tetrafluoroborate has molecular formula C6H4BBrF4N2 and molecular weight 270.818 g/mol.

Is 4-Bromobenzenediazonium tetrafluoroborate hazardous?

4-Bromobenzenediazonium tetrafluoroborate has GHS signal word Danger and hazard statements H314 — Causes severe skin burns and eye damage.

What are the upstream and downstream products of 4-Bromobenzenediazonium tetrafluoroborate?

For 4-Bromobenzenediazonium tetrafluoroborate, Upstream Products: 4-Bromoaniline; Downstream Products: 4-Bromochlorobenzene, 1-Bromo-4-fluorobenzene, Bromobenzene.

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

Last updated:

How to cite: Jingsj. "4-Bromobenzenediazonium tetrafluoroborate (CAS 673-40-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27176-1 (accessed 2026-11-09).

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