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Merck
CN

201618

Sudan Red 7B

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
NACRES:
NA.47
PubChem Substance ID:
24852014
UNSPSC Code:
12171500
EC Number:
228-862-5
MDL number:
MFCD00003904
Beilstein/REAXYS Number:
3534323

Key Documents

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InChI key

VKWNTWQXVLKCSG-ZDXBJJIESA-N

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+

SMILES string

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

form

powder

technique(s)

microbe id | staining: suitable

mp

130 °C (dec.) (lit.)

solubility

acetone: 10 mg/mL

λmax

364 nm (2nd)
533 nm

ε (extinction coefficient)

≥14230 at 367-377 nm in toluene
≥24660 at 528-538 nm in toluene

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

200

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Application

Sudan Red 7B has been used to stain the fat bodies of Ostrinia nubilalis (Hübner) larvae.

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.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN8311
BCCM8159
BCCL6307
BCCK9917
BCCH8605

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James L. Brewster
Onions and Other Vegetable Alliums (2008)
A.L. Smit
Root Methods: A Handbook (2013)
Sudan Red 7B, a Dye Marker for Coptotermes formosanus
Lai PY
Hawaiian Entomological Society., 277-282 (1983)
NAN-YAO SU
Material und Organismen: Materials and organisms. Materiaux et organismes (1980)
Effect of Age and Mating Status on Adult European Corn
Borer (Lepidoptera: Crambidae) Dispersal from Small-Grain
Aggregation Plots
Reardon B J
Journal of Economic Entomology, 100, 1116-1123 (2007)
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