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Amido black 10B

Amido black 10B is an amino acid staining azo dye used in biochemical research to stain for total protein on transferred membrane blots, such as the western blot.[2] It is also used in criminal investigations to detect blood present with latent fingerprints - it stains the proteins in blood a blue-black color.[3] Amido Black can be either methanol or water based as it readily dissolves in both. With picric acid, in a van Gieson procedure, it can be used to stain collagen and reticulin.

Amido black 10B[1]
Names
IUPAC name
Sodium 4-amino-5-hydroxy-3-((E)-(4-nitrophenyl)diazenyl)-6-((E)-phenyldiazenyl)naphthalene-2,7-disulfonate
Other names
4-Amino-5-hydroxy-3-[(4-nitrophenyl)azo]-6-(phenylazo)-2,7-naphthalene disulfonic acid, disodium salt
Amidoschwarz
Naphthol blue black
Acid Black 1
Acidal Black 10B
Acidal Navy Blue 3BR
Naphthalene Black 10B
Buffalo Black NBR
C.I. 20470
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.012.640 Edit this at Wikidata
EC Number
  • 213-903-1
UNII
  • InChI=1S/C22H16N6O9S2.2Na/c23-19-18-12(11-17(39(35,36)37)21(22(18)29)27-24-13-4-2-1-3-5-13)10-16(38(32,33)34)20(19)26-25-14-6-8-15(9-7-14)28(30)31;;/h1-11,29H,23H2,(H,32,33,34)(H,35,36,37);;/q;2*+1/p-2/b26-25+,27-24+;; checkY
    Key: AOMZHDJXSYHPKS-DROYEMJCSA-L checkY
  • InChI=1/C22H16N6O9S2.2Na/c23-19-18-12(11-17(39(35,36)37)21(22(18)29)27-24-13-4-2-1-3-5-13)10-16(38(32,33)34)20(19)26-25-14-6-8-15(9-7-14)28(30)31;;/h1-11,29H,23H2,(H,32,33,34)(H,35,36,37);;/q;2*+1/p-2/b26-25+,27-24+;;
    Key: AOMZHDJXSYHPKS-NJAWIMKDBA
  • [Na+].[Na+].O=N(=O)c1ccc(cc1)/N=N/c2c(N)c4c(cc2S([O-])(=O)=O)cc(c(/N=N/c3ccccc3)c4O)S([O-])(=O)=O
Properties
C22H14N6Na2O9S2
Molar mass 616.49 g·mol−1
Appearance Dark red to black
~ 30 g/L at 20 °C (68 °F)
Hazards
GHS labelling:
GHS07: Exclamation mark
Warning
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
☒N verify (what is checkY☒N ?)

See also

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References

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  1. ^ "AMIDO BLACK 10B". chemicalland21.com. Retrieved December 2, 2017.
  2. ^ Kurien, B. T., & Scofield, R. H. (2015). Western Blotting: An Introduction. In B. T. Kurien & R. H. Scofield (Eds.), Western Blotting: Methods and Protocols (pp. 17–30). Springer. ISBN 978-1-4939-2694-7
  3. ^ Bossers, L. C. A. M., Roux, C., Bell, M., & McDonagh, A. M. (2011). Methods for the enhancement of fingermarks in blood. Forensic Science International, 210(1), 1–11. doi:10.1016/j.forsciint.2011.04.006
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