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T0388

Tartrazine

Name: Tartrazine
Brand: SIGMA

Dye content ≥85 %, Powder

Synonym(s):

Acid Yellow 23

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About This Item

Empirical Formula (Hill Notation):

C₁₆H₉N₄Na₃O₉S₂

CAS Number:

1934-21-0

Molecular Weight:

534.36

NACRES:

NA.47

PubChem Substance ID:

24899885

EC Number:

217-699-5

MDL number:

MFCD00148908

Colour Index Number:

19140

Beilstein/REAXYS Number:

69850

UNSPSC Code:

41116107

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Properties

Product Name

Tartrazine, Dye content ≥85 %

form

powder

Quality Segment

200

composition

Dye content, ≥85%

technique(s)

titration: suitable

color

orange

solubility

H₂O: 10 mg/mL, clear, yellow to orange

density

2.12 at 20 °C

ε_max

435-500 at 425-429 nm in water

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

[Na+].[Na+].[Na+].[O-]C(=O)C1=NN(c2ccc(cc2)S([O-])(=O)=O)C(=O)C1N=Nc3ccc(cc3)S([O-])(=O)=O

InChI

1S/C16H12N4O9S2.3Na/c21-15-13(18-17-9-1-5-11(6-2-9)30(24,25)26)14(16(22)23)19-20(15)10-3-7-12(8-4-10)31(27,28)29;;;/h1-8,13H,(H,22,23)(H,24,25,26)(H,27,28,29);;;/q;3*+1/p-3

InChI key

UJMBCXLDXJUMFB-UHFFFAOYSA-K

Description

General description

Tartrazine (Cl 19140) also known as Acid yellow 23, is a hydrophilic polyanionic dye. It is a sulfonic dye, which can be synthesized by the reaction of sulfanilic acid with 3-carboxy-l-(4-sulfophenyl)-5-pyrazolone.

Application

Tartrazine may be used as a reference standard in the determination of tartrazine in food samples using ion-pair liquid chromatography coupled with photodiode-array and electrospray mass spectrometry detector.
The application of Tartrazine is seen in the phloxine-tartrazine procedure for cellular inclusions such as viral aggregates and eosinophil granules. It may be used as a substitute for orange G in a variant of Mallory′s trichrome, and in a methyl violet-tartrazine mixture to stain cryptosporidia in faecal smears and mucosal scrapings.

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Storage Class

11 - Combustible Solids

wgk

WGK 1

ppe

dust mask type N95 (US), Eyeshields, Faceshields, Gloves

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