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46290

Sigma-Aldrich

Sudan Red 7B

for microscopy (Bot., Hist.)

Synonym(s):

Fat Red 7B, Fat red bluish, Solvent Red 19

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About This Item

Empirical Formula (Hill Notation):
C24H21N5
CAS Number:
6368-72-5
Molecular Weight:
379.46
Colour Index Number:
26050
Beilstein/REAXYS Number:
3534323
EC Number:
228-862-5
MDL number:
MFCD00003904
UNSPSC Code:
12171500
PubChem Substance ID:
57650757
NACRES:
NA.47

grade

for microscopy (Bot., Hist.)

Quality Level

100

form

powder

mp

130 °C (dec.) (lit.)

solubility

acetone: 0.1 g/10 mL, clear to turbid, red

λmax

367-377 nm in toluene (2nd)
528-538 nm in toluene (1st)

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

CCNc1ccc2ccccc2c1\N=N\c3ccc(cc3)\N=N\c4ccccc4

InChI

1S/C24H21N5/c1-2-25-23-17-12-18-8-6-7-11-22(18)24(23)29-28-21-15-13-20(14-16-21)27-26-19-9-4-3-5-10-19/h3-17,25H,2H2,1H3/b27-26+,29-28+

InChI key

VKWNTWQXVLKCSG-ZDXBJJIESA-N

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Biochem/physiol Actions

Sudan red 7B, also known as fat red, is a non-fluorescent stain. It is effectively used to stain lipids and is used to indicate the presence of suberin in cell walls. Sudan red 7B acts as a marker for formosan subterranean termite, Coptotermes fornosanus Shiraki.
Appl- Sudan Red 7B has been used to stain root sections of pearl millet.

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Onions and Other Vegetable Alliums, 454-454 (2008)
Sudan Red 7B, a Dye Marker for Coptotermes formosanus
Lai P Y, et al.
Hawaiian Entomological Society. (1983)
Component traits of plant water use are modulated by vapour pressure deficit in pearl millet (Pennisetum glaucum (L.) R. Br.).
Kholova J, et al.
Functional plant biology, 43(5), 423-437 (2016)
Root Methods: A Handbook, 594-594 (2013)
Effects of a dye, Sudan Red 7B, on the Formosan subterranean termite, Coptotermes formosanus Shiraki (Isoptera: Rhinotermitidae).
Su N Y, et al.
Material and Organismen, 18, 127-133 (1983)
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