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Merck

49547

Supelco

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

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About This Item

Empirische Formel (Hill-System):
C10H4N2Na2O8S
CAS-Nummer:
Molekulargewicht:
358.19
Farbindexnummer:
10316
Beilstein:
3839220
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
85151701
PubChem Substanz-ID:
NACRES:
NA.24

Qualität

analytical standard

Qualitätsniveau

Assay

≥99.0% (HPLC)

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-]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

InChIKey

CTIQLGJVGNGFEW-UHFFFAOYSA-L

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Allgemeine Beschreibung

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

Anwendung

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.

Verpackung

Bottomless glass bottle. Contents are inside inserted fused cone.

Empfohlene Produkte

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.

Piktogramme

Health hazardExclamation mark

Signalwort

Warning

H-Sätze

Gefahreneinstufungen

Skin Sens. 1 - STOT RE 2

Lagerklassenschlüssel

11 - Combustible Solids

WGK

WGK 2

Flammpunkt (°F)

Not applicable

Flammpunkt (°C)

Not applicable

Persönliche Schutzausrüstung

Eyeshields, Gloves, type N95 (US)


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Analysenzertifikate (COA)

Lot/Batch Number

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Die Dokumentenbibliothek aufrufen

High-performance liquid chromatography and non-destructive three-dimensional fluorescence analysis of early synthetic dyes.
van Bommel MR, et al.
Journal of Chromatography A, 1157(1-2), 260-272 (2007)
Photodegradation of hazardous dye naphthol yellow s over titanium dioxide.
Jain R and Sikarwar S
Journal of Dispersion Science and Technology, 32(9), 1345-1352 (2011)
Identification and determination of 34 water-soluble synthetic dyes in foodstuff by high performance liquid chromatography-diode array detection-ion trap time-of-flight tandem mass spectrometry.
Li XQ, et al.
Food Chemistry, 182(9), 316-326 (2015)
Brodsky VYa et al.
European journal of histochemistry : EJH, 37(3), 199-206 (1993-01-01)
Two-wavelength scanning cytophotometry was performed for the measurement of DNA (Feulgen reaction) and total protein content (naphthol yellow S staining) in the same cardiac myocyte. A lack of proportionality between the DNA content (i.e, cell ploidy) and protein content has
Determination of 40 synthetic food colors in drinks and candies by high-performance liquid chromatography using a short column with photodiode array detection.
Yoshioka N and Ichihashi K
Talanta, 74(5), 1408-1413 (2008)

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