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S4136

Sigma-Aldrich

Sudan III

Dye content, ≥80%, certified by the Biological Stain Commission, powder

Synonym(s):

1-[4-(Phenylazo)phenylazo]-2-naphthol, Cerasin Red, Fat Ponceau G, Fat Soluble Sudan, Scarlet B, Solvent Red 23, Sudan G, Sudan Red BK, Tony Red

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About This Item

Empirical Formula (Hill Notation):
C22H16N4O
CAS Number:
85-86-9
Molecular Weight:
352.39
Colour Index Number:
26100
Beilstein:
931185
EC Number:
201-638-4
MDL number:
MFCD00003905
UNSPSC Code:
12171500
PubChem Substance ID:
24899589
NACRES:
NA.47

product name

Sudan III, certified by the Biological Stain Commission, BioXtra

grade

certified by the Biological Stain Commission

Quality Level

200

product line

BioXtra

form

powder

composition

Dye content, ≥80%

mp

199 °C (dec.) (lit.)

solubility

toluene: 1 mg/mL, clear, red

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

Oc1ccc2ccccc2c1\N=N\c3ccc(cc3)\N=N\c4ccccc4

InChI

1S/C22H16N4O/c27-21-15-10-16-6-4-5-9-20(16)22(21)26-25-19-13-11-18(12-14-19)24-23-17-7-2-1-3-8-17/h1-15,27H/b24-23+,26-25+

InChI key

FHNINJWBTRXEBC-QSZPNPOGSA-N

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Suitability

Certified as a fat staining using the Churukian variant of the Lillie-Ashburn supersaturated isopropanol method. Sudan III is substituted for the oil red O in the procedure.

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)

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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