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M8631

Sigma-Aldrich

Melanin

Synthetic

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About This Item

Número de CAS:
EC Number:
MDL number:
UNSPSC Code:
12352204
NACRES:
NA.83

Quality Level

form

powder

storage temp.

−20°C

InChI

1S/C18H10N2O4/c1-5-13-9-7(3-19-13)12-10-8(11(9)17(23)15(5)21)4-20-14(10)6(2)16(22)18(12)24/h3-4,19-20H,1-2H3

InChI key

XUMBMVFBXHLACL-UHFFFAOYSA-N

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General description

Melanin is a vital pigment present on the surface structures of vertebrates, which contribute to skin color. It has three forms such as, eumelanin, pheomelanin and neuromelanin. Melanin has cation chelating and redox properties. It is a potent absorbent of light. Melanin functions as a chemoprotective and photoprotective pigment. Mutations in this gene are associated with oculocutaneous albinism, vitiligo, piebaldism and Waardenburg syndrome.

Application

Melanin has been used:
  • in spectrophotometry
  • to study its effect on reverse transcription polymerase chain reaction (RT-PCR) inhibition and effect of BSA (bovine serum albumin) in overcoming the inhibition
  • as an absorber for skin layer in near-infrared tissue spectra
  • Raman spectroscopy

Preparation Note

Prepared by oxidation of tyrosine with hydrogen peroxide.

Storage Class

11 - Combustible Solids

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)


Certificados de análisis (COA)

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Bovine serum albumin reverses inhibition of RT-PCR by melanin
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Melanin
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Constant rate of steady-state self-antigen trafficking from skin to regional lymph nodes
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An accurate SO(2) prediction method for using broadband continuous-wave diffuse reflectance near infrared (NIR) spectroscopy is proposed. The method fitted the NIR spectra to a Taylor expansion attenuation model, and used the simulated annealing method to initialize the nonlinear least
Justyna M Drewnowska et al.
PloS one, 10(4), e0125428-e0125428 (2015-04-25)
Although melanin is known for protecting living organisms from harmful physical and chemical factors, its synthesis is rarely observed among endospore-forming Bacillus cereus sensu lato. Here, for the first time, we reported that psychrotolerant Bacillus weihenstephanensis from Northeastern Poland can

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