49547

Naphtholgelb S

analytical standard

• Synonym(e): 2,4-Dinitro-1-naphthol-7-sulfonsäure Natriumsalz, 5,7-Dinitro-8-hydroxy-2-naphthalinsulfonsäure Natriumsalz, Flaviansäure Natriumsalz, Säuregelb 1
• Empirische Formel (Hill-System): C₁₀H₄N₂Na₂O₈S
• CAS-Nummer: 846-70-8
• Molekulargewicht: 358.19
• EC Number: 212-690-2
• UNSPSC Code: 85151701
• NACRES: NA.24
• PubChem Substance ID: 329757474
• MDL number: MFCD00003958
• Colour Index Number: 10316
• Beilstein/REAXYS Number: 3839220

Eigenschaften

• grade: analytical standard
• Quality Segment: 100
• assay: ≥99.0% (HPLC)
• technique(s): HPLC: suitable, gas chromatography (GC): suitable
• application(s): cleaning products; cosmetics; food and beverages; personal care
• format: neat
• SMILES string: [Na+].[Na+].[O-]c1c(cc([N+]([O-])=O)c2ccc(cc12)S([O-])(=O)=O)[N+]([O-])=O
• InChI: 1S/C10H6N2O8S.2Na/c13-10-7-3-5(21(18,19)20)1-2-6(7)8(11(14)15)4-9(10)12(16)17;;/h1-4,13H,(H,18,19,20);;/q;2*+1/p-2
• InChI key: CTIQLGJVGNGFEW-UHFFFAOYSA-L

Beschreibung

General description

Naphthol Yellow S is a dye that is known for its hazardous nature.

Application

Naphthol Yellow S may be used as an analytical reference standard for the determination of Naphthol Yellow S in:

• Foodstuffs by solid phase extraction (SPE) and high performance liquid chromatography (HPLC)-diode array detection (DAD)-ion trap time-of-flight tandem mass spectrometry (IT-TOF-MS³) equipped with multiple reaction monitoring (MRM) detection.
• Drinks and candies by SPE followed by analysis using HPLC coupled to photodiode array (PDA) detector.
• Wastewater samples by adsorption column chromatography.
• Embroideries designed by the famous 19th century French painter Emile Bernard.

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

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Find a digital Reference Material for this product available on our online platform ChemisTwin® for NMR. You can use this digital equivalent on ChemisTwin® for your sample identity confirmation and compound quantification (with digital external standard). An NMR spectrum of this substance can be viewed and an online comparison against your sample can be performed with a few mouseclicks. Learn more here and start your free trial.

Sicherheitshinweise

• pictograms: GHS08,GHS07
• signalword: Warning
• hcodes: H317,H373
• pcodes: P260 - P272 - P280 - P302 + P352 - P314 - P333 + P313
• Hazard Classifications: Skin Sens. 1 - STOT RE 2
• Lagerklasse: 11 - Combustible Solids
• wgk: WGK 2
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• ppe: Eyeshields, Gloves, type N95 (US)