73436

Indigokarmin

analytical standard

• Synonym(e): Indigo-5,5′-disulfonsäure Dinatriumsalz, Säureblau 74
• Empirische Formel (Hill-System): C₁₆H₈N₂Na₂O₈S₂
• CAS-Nummer: 860-22-0
• Molekulargewicht: 466.35
• Farbindexnummer: 73015
• Beilstein: 4103904
• EG-Nummer: 212-728-8
• MDL-Nummer: MFCD00005723
• UNSPSC-Code: 85151701
• PubChem Substanz-ID: 329764894
• E-Nummer: E132
• NACRES: NA.24

Eigenschaften

• Qualität: analytical standard
• Qualitätsniveau: 100
• Assay: ≥97.0% (HPLC)
• Haltbarkeit: limited shelf life, expiry date on the label
• Methode(n): HPLC: suitable; gas chromatography (GC): suitable
• Anwendung(en): cleaning products; cosmetics; food and beverages; personal care
• Format: neat
• SMILES String: [Na+].[Na+].[O-]S(=O)(=O)c1ccc2NC(\C(=O)c2c1)=C3\Nc4ccc(cc4C3=O)S([O-])(=O)=O
• InChI: 1S/C16H10N2O8S2.2Na/c19-15-9-5-7(27(21,22)23)1-3-11(9)17-13(15)14-16(20)10-6-8(28(24,25)26)2-4-12(10)18-14;;/h1-6,17-18H,(H,21,22,23)(H,24,25,26);;/q;2*+1/p-2/b14-13+;;
• InChIKey: KHLVKKOJDHCJMG-QDBORUFSSA-L

Beschreibung

Allgemeine Beschreibung

Indigo carmine (IC), a synthetic indigoid dye, belongs to the class of food dyes used to impart colorless foodstuffs a more characteristic appearance as well as to change the original color, texture of the food products and maintain natural color during processing and storage of food products.
This product is provided by Sigma-Aldrich, as a neat standard for the precise quality control of food products. In the European Union, E numbers are used as codes for food color additives. E numbers 100-199 include not only artificial food colors derived from petroleum, but also natural additives originating from sources such as vegetables, insects or mixtures made from natural foodstuffs. IC is widely used in a variety of food products including fruit juices, bread, smoked fish, sweets, tomatoes, catsup, dairy, skim milk products, etc.

Anwendung

Indigo carmine may be used as a test material to investigate its interaction with the calf thymus DNA in physiological buffer (pH 7.4) with the use of ethidium bromide (EB) dye as a fluorescence probe by spectroscopic studies. It may be used as an analytical reagent for spectrophotometric determination of pantoprazole sodium sesquihydrate (PNT) in pure form and dosage forms using a bromide-bromide mixture. IC may also be used as an analytical reference standard for the quantification of the analyte in food products using microemulsion electrokinetic chromatography (MEEKC).

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Verpackung

Bottomless glass bottle. Contents are inside inserted fused cone.

Empfohlene Produkte

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Sicherheitshinweise

• Piktogramme: GHS07
• Signalwort: Warning
• H-Sätze: H317
• P-Sätze: P261 - P272 - P280 - P302 + P352 - P333 + P313 - P362 + P364
• Gefahreneinstufungen: Skin Sens. 1
• Lagerklassenschlüssel: 11 - Combustible Solids
• WGK: WGK 1