Amido black 10B is an
amino acid staining
Staining is a technique used to enhance contrast in samples, generally at the microscopic level. Stains and dyes are frequently used in histology (microscopic study of biological tissues), in cytology (microscopic study of cells), and in the ...
azo dye
Azo dyes are organic compounds bearing the functional group R−N=N−R′, in which R and R′ are usually aryl and substituted aryl groups. They are a commercially important family of azo compounds, i.e. compounds containing the C-N=N ...
used in biochemical research to stain for total
protein on transferred membrane blots, such as the
western blot. It is also used in criminal investigations to detect
blood present with latent
fingerprints. It stains the proteins in blood a blue-black color. Amido Black can be either
methanol
Methanol (also called methyl alcohol and wood spirit, amongst other names) is an organic chemical and the simplest aliphatic alcohol, with the formula C H3 O H (a methyl group linked to a hydroxyl group, often abbreviated as MeOH). It is a ...
or water based as it readily dissolves in both. With
picric acid
Picric acid is an organic compound with the formula (O2N)3C6H2OH. Its IUPAC name is 2,4,6-trinitrophenol (TNP). The name "picric" comes from el, πικρός (''pikros''), meaning "bitter", due to its bitter taste. It is one of the most acidic ...
, in a
van Gieson procedure, it can be used to stain
collagen
Collagen () is the main structural protein in the extracellular matrix found in the body's various connective tissues. As the main component of connective tissue, it is the most abundant protein in mammals, making up from 25% to 35% of the whole ...
and
reticulin.
See also
*
Western blot normalization
References
External links
MSDS at Oxford University
{{DEFAULTSORT:Amido Black 10b
Azo dyes
Naphthalenesulfonates
Organic sodium salts
1-Naphthols
Nitrobenzenes
Aromatic amines
Acid dyes