Skip to main content

4,5-Dibromo-1H-pyrrole-2-carboxylic acid

Also known as: 1H-Pyrrole-2-carboxylic acid, 4,5-dibromo-, 4,5-Dibromo-2-pyrrolic acid, 4,5-Dibromo-2-pyrrolecarboxylic acid, 5-Carboxy-2,3-dibromo-1H-pyrrole

4,5-Dibromo-1H-pyrrole-2-carboxylic acid (CAS 34649-21-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C5H3Br2NO2 and a molecular weight of 268.89100 g/mol. Key properties include a melting point of >300ºC, a boiling point of 441.5ºC at 760mmHg, a density of 2.386g/cm3 and a flash point of 220.8ºC. No supplier offers are currently listed; request a quote. Record last updated Nov 3, 2026.

CAS No.
34649-21-3
Jingsj CID
J-898320-8
Molecular Formula
C5H3Br2NO2
Molecular Weight
268.89100 g/mol
Category
Organic Acids
Last updated
11/3/2026

No offers for this compound yet.

Request a quote

Physicochemical Properties

Melting Point>300ºC
Boiling Point441.5ºC at 760mmHg
Density2.386g/cm3
Flash Point220.8ºC
Exact Mass266.85300
PSA53.09000
LogP2.23790
Refractive Index1.688

Customs & Trade Information

HS Code2933990090
Summary2933990090. heterocyclic compounds with nitrogen 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 4,5-Dibromo-1H-pyrrole-2-carboxylic acid?

The CAS number of 4,5-Dibromo-1H-pyrrole-2-carboxylic acid is 34649-21-3.

What are the molecular formula and molecular weight of 4,5-Dibromo-1H-pyrrole-2-carboxylic acid?

4,5-Dibromo-1H-pyrrole-2-carboxylic acid has molecular formula C5H3Br2NO2 and molecular weight 268.89100 g/mol.

What are the upstream and downstream products of 4,5-Dibromo-1H-pyrrole-2-carboxylic acid?

For 4,5-Dibromo-1H-pyrrole-2-carboxylic acid, Upstream Products: Pyrrole-2-carboxylic acid, 2,3-Dibromo-5-(trichloroacetyl)-1H-pyrrole, 2,2,2-Trichloro-1-(1H-pyrrol-2-yl)ethan-1-one; Downstream Products: 3,4,5-tribromo-1H-pyrrole-2-carboxylic acid.

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

Last updated:

How to cite: Jingsj. "4,5-Dibromo-1H-pyrrole-2-carboxylic acid (CAS 34649-21-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-898320-8 (accessed 2026-11-09).

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