Monobromobimane

Also known as: Bromobimane, mBBr, 3-(Bromomethyl)-2,5,6-trimethylpyrazolo[1,2-a]pyrazole-1,7-dione

Monobromobimane (CAS 71418-44-5) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C10H11BrN2O2 and a molecular weight of 271.11100 g/mol. Key properties include a melting point of 152-154ºC, a boiling point of 327.8ºC at 760 mmHg, a density of 1.66g/cm3 and a flash point of 152.1ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 71418-44-5
Jingsj CID: J-1955078-8
Molecular Formula: C₁₀H₁₁BrN₂O₂
Molecular Weight: 271.11100 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Melting Point	152-154ºC
Boiling Point	327.8ºC at 760 mmHg
Density	1.66g/cm3
Flash Point	152.1ºC
Exact Mass	270.00000
PSA	42.96000
LogP	1.01710
Refractive Index	1.64
Storage Conditions	-20℃

Activity & Biological Data

Additional Information	[1]. Kosower EM, et al. Bromobimane probes for thiols. Methods Enzymol. 1995;251:133-48. [2]. Newton GL, et al. Determination of biothiols by bromobimane labeling and high-performance liquid chromatography. Methods Enzymol. 1995;251:148-66.

Frequently Asked Questions

What is the CAS number of Monobromobimane?

The CAS number of Monobromobimane is 71418-44-5.

What are the molecular formula and molecular weight of Monobromobimane?

Monobromobimane has molecular formula C10H11BrN2O2 and molecular weight 271.11100 g/mol.

What are the upstream and downstream products of Monobromobimane?

For Monobromobimane, Upstream Products: Ethyl 2-methylacetoacetate, 3,4-Dimethyl-5-pyrazolone, syn-(Methyl,methyl)bimane; Downstream Products: syn-(Methyl,methyl)bimane, Monochlorobimane.

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

Last updated: 8/21/2026

How to cite: Jingsj. "Monobromobimane (CAS 71418-44-5)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1955078-8 (accessed 2026-11-09).

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