18137

Ponceau 4R

analytical standard

• Synonym(s): New Coccine, Acid Red 18, Ponceau 4 R
• Empirical Formula (Hill Notation): C₂₀H₁₁N₂Na₃O₁₀S₃
• CAS Number: 2611-82-7
• Molecular Weight: 604.47
• Colour Index Number: 16255
• Beilstein/REAXYS Number: 4122340
• EC Number: 220-036-2
• MDL number: MFCD00004084
• UNSPSC Code: 12164500
• PubChem Substance ID: 329751631
• E Number: E124
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• assay: ≥98.0% (HPLC)
• shelf life: limited shelf life, expiry date on the label
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• application(s): cleaning products; cosmetics; food and beverages; personal care
• format: neat
• SMILES string: [Na+].[Na+].[Na+].Oc1ccc2cc(cc(c2c1\N=N\c3ccc(c4ccccc34)S([O-])(=O)=O)S([O-])(=O)=O)S([O-])(=O)=O
• InChI: 1S/C20H14N2O10S3.3Na/c23-16-7-5-11-9-12(33(24,25)26)10-18(35(30,31)32)19(11)20(16)22-21-15-6-8-17(34(27,28)29)14-4-2-1-3-13(14)15;;;/h1-10,23H,(H,24,25,26)(H,27,28,29)(H,30,31,32);;;/q;3*+1/p-3/b22-21+;;;
• InChI key: SWGJCIMEBVHMTA-ZRUFZDNISA-K

Description

General description

Ponceau 4R is a sulfonated azo dye, used as a food colorant to give red color to different food products, such as alcoholic beverages, soft drinks, bakery products, candies, syrups, preserved fruits, etc. An acceptable daily intake (ADI) of 0.4 to 0.7 mg (kg body weight)^-1 was set for Ponceau 4R by the European Food Safety Authority (EFSA) in 2009.

Application

The analytical standards can also be used as follows:

• Spectrophotometric quantitative estimation of Brilliant Blue, Sunset Yellow, Ponceau 4R, and Tartrazin from juice samples, using a transparent polymer matrix for extraction
• Liquid-liquid microextraction of five synthetic food dyes from different food samples for their determination by high-performance liquid chromatography with a variable wavelength ultraviolet detector (HPLC-VWUVD)
• Simultaneous analysis of five water-soluble synthetic colorants in different food samples by on-plate solid-phase extraction and thin-layer chromatography (TLC) with backlight-assisted detection
• Multi-residue determination of 11 synthetic color food additives in high protein and fat content food products by HPLC combined with a diode array detector (DAD) or a tandem mass spectrometer (MS/MS)
• Extraction of eight synthetic food dyes from 30 food samples of six types using an NH₂-aminopropyl-modified silica SPE cartridge for their quantification by RP-HPLC coupled with UV detector

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

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

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable