Bicinchoninic acid

Chembox new
Name = Bicinchoninic acid
ImageFile = Bicinchoninic acid.svg
ImageName =
IUPACName = 2-(4-carboxyquinolin-2-yl)quinoline-4-carboxylic acid
OtherNames = Bicinchoninic acid
4,4'-Dicarboxy-2,2'-Biquinoline
Section1 = Chembox Identifiers
CASNo = 1245-13-2
RTECS =
Section2 = Chembox Properties
Formula = (HO₂CC₉H₅N)₂
MolarMass = 344.33 g/mol
Appearance = Cream powder. Characteristic odor.
Density = Solid in pure form.
Density not available.
Solubility = Partially soluble in cold water, hot water.
MeltingPt = 365 to 367 °C
BoilingPt = Not available.
pKa =
Section3 = Chembox Structure
CrystalStruct =
Dipole =
Section7 = Chembox Hazards
ExternalMSDS = [http://www.gfschemicals.com/Search/MSDS/381MSDS.PDF External MSDS]
MainHazards = Will irritate eyes and mucous membranes.
The chemical, physical and toxicological
properties have not been fully investigated.
Presume moderate toxicity internally. LD/TD
no data. OSHA PEL/ACGIH TLV not established.
No evidence of carcinogenicity.
NFPA-H = 1?
NFPA-R = ?
NFPA-F = ?
FlashPt = N/A

Bicinchoninic acid is a weak acid composed of two carboxylated quinoline rings.

Bicinchoninic acid is most commonly employed by biochemists in the bicinchoninic acid assay, which is used to determine the total level of protein in a solution. In this assay, two molecules of bicinchoninic acid chelate a single Cu¹⁺ ion, forming a purple water-soluble complex that strongly aborbs light at 562 nm.

References