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34025

Sigma-Aldrich

Dibromobimane

BioReagent, suitable for fluorescence, ≥95.0% (CHN)

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About This Item

Empirical Formula (Hill Notation):
C10H10Br2N2O2
CAS Number:
68654-25-1
Molecular Weight:
350.01
Beilstein:
4189453
MDL number:
MFCD00036952
UNSPSC Code:
12352108
PubChem Substance ID:
57649022
NACRES:
NA.32

product line

BioReagent

Quality Level

100

Assay

≥95.0% (CHN)

mp

170-172 °C (lit.)

solubility

DMF: soluble
acetonitrile: soluble
chloroform: soluble

fluorescence

λex 391 nm in methanol
λex 393 nm; λem 477 nm in 0.1 M Tris pH 7.0, gutathione red

suitability

suitable for fluorescence

storage temp.

2-8°C

SMILES string

CC1=C(CBr)N2N(C1=O)C(=O)C(C)=C2CBr

InChI

1S/C10H10Br2N2O2/c1-5-7(3-11)13-8(4-12)6(2)10(16)14(13)9(5)15/h3-4H2,1-2H3

InChI key

OSIYFMVMZXJKSP-UHFFFAOYSA-N

Application

Dibromobimane, a bifunctional thiol reagent, is used as a cross-linking agent for cysteine mapping and studies on protein structure/conformation and cross-linking processes.

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Fluorescent thiol-specific labeling reagent

Pictograms

Exclamation mark
GHS07

Signal Word

Warning

Hazard Statements

H315,H319,H335

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL3563
BCCH0191
BCCB1526
BCBT8714
BCBT5924

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Hai Po Helena Liang et al.
The Biochemical journal, 437(3), 455-460 (2011-05-21)
TF (tissue factor) is a transmembrane cofactor that initiates blood coagulation in mammals by binding Factor VIIa to activate Factors X and IX. The cofactor can reside in a cryptic configuration on primary cells and de-encryption may involve a redox
Zhenhui Chen et al.
The Journal of biological chemistry, 281(20), 14163-14172 (2006-03-24)
Interactions between the transmembrane domains of phospholamban (PLB) and the cardiac Ca2+ pump (SERCA2a) have been investigated by chemical cross-linking. Specifically, C-terminal, transmembrane residues 45-52 of PLB were individually mutated to Cys, then cross-linked to V89C in the M2 helix
M Adil Khan et al.
Biochemistry, 48(41), 9745-9756 (2009-09-23)
Membrane-intrinsic enzymes are embedded in lipids, yet how such enzymes interrogate lipid substrates remains a largely unexplored fundamental question. The outer membrane phospholipid:lipid A palmitoyltransferase PagP combats host immune defenses during infection and selects a palmitate chain using its beta-barrel
T W Loo et al.
The Journal of biological chemistry, 272(51), 31945-31948 (1998-01-24)
We identified a thiol-reactive compound, dibromobimane (dBBn), that was a potent stimulator (8.2-fold) of the ATPase activity of Cys-less P-glycoprotein. We then used this compound together with cysteine-scanning mutagenesis to identify residues in transmembrane segment (TM) 6 and TM12 that
Yung-Feng Lin et al.
The Journal of biological chemistry, 282(23), 16783-16791 (2007-04-19)
The ArsA ATPase is the catalytic subunit of the ArsAB pump encoded by the arsRDABC operon of Escherichia coli plasmid R773. ArsD is a metallochaperone that delivers As(III) to ArsA, increasing its affinity for As(III), thus conferring resistance to environmental
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