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S4136

Sigma-Aldrich

Sudan III

BioXtra, certified by the Biological Stain Commission

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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
Empirical Formula (Hill Notation):
C22H16N4O
CAS Number:
Molecular Weight:
352.39
Colour Index Number:
26100
Beilstein:
931185
EC Number:
MDL number:
PubChem Substance ID:

grade

certified by the Biological Stain Commission

Quality Level

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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1 of 4

This Item
S4131103624S4261
Sudan III BioXtra, certified by the Biological Stain Commission

Sigma-Aldrich

S4136

Sudan III

Sudan III Technical grade

Sigma-Aldrich

S4131

Sudan III

Sudan I Dye content ≥95 %

Sigma-Aldrich

103624

Sudan I

Sudan IV certified by the Biological Stain Commission, BioXtra

Sigma-Aldrich

S4261

Sudan IV

product line

BioXtra

product line

-

product line

-

product line

BioXtra

form

powder

form

powder

form

powder

form

powder

composition

Dye content, ≥80%

composition

Dye content, ≥85%

composition

Dye content, ≥95%

composition

Dye content, ≥80%

mp

199 °C (dec.) (lit.)

mp

199 °C (dec.) (lit.)

mp

131-133 °C (lit.)

mp

199 °C (dec.) (lit.)

solubility

toluene: 1 mg/mL, clear, red

solubility

chloroform: 1 mg/mL, clear, red

solubility

chloroform: 1 mg/mL, clear, orange

solubility

-

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.

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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