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46290

Sigma-Aldrich

Sudan Red 7B

for microscopy (Bot., Hist.)

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Synonym(s):
Fat Red 7B, Fat red bluish, Solvent Red 19
Empirical Formula (Hill Notation):
C24H21N5
CAS Number:
6368-72-5
Molecular Weight:
379.46
Colour Index Number:
26050
Beilstein:
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

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Sudan Red 7B, a Dye Marker for Coptotermes formosanus
Lai P Y, et al.
Hawaiian Entomological Society. (1983)
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)
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)
Dennis P Curran et al.
Organic letters, 6(6), 1021-1024 (2004-03-12)
[reaction: see text] Partition coefficient measurements and experiments with a dye show that a new fluorous "phase vanishing reaction" described by Jana and Verkade occurs by an extractive mechanism. This mechanism is contrasted with the original diffusive phase-vanishing reactions introduced
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