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49547

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Naphthol Yellow S

analytical standard

Synonyme(s) :

2,4-Dinitro-1-naphthol-7-sulfonic acid sodium salt, 5,7-Dinitro-8-hydroxy-2-naphthalenesulfonic acid sodium salt, Acid Yellow 1, Flavianic acid sodium salt

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About This Item

Formule empirique (notation de Hill):
C10H4N2Na2O8S
Numéro CAS:
Poids moléculaire :
358.19
Numéro C.I. (Colour Index):
10316
Numéro Beilstein :
3839220
Numéro CE :
Numéro MDL:
Code UNSPSC :
85151701
ID de substance PubChem :
Nomenclature NACRES :
NA.24

Qualité

analytical standard

Niveau de qualité

Pureté

≥99.0% (HPLC)

Technique(s)

HPLC: suitable
gas chromatography (GC): suitable

Application(s)

cleaning products
cosmetics
food and beverages
personal care

Format

neat

Chaîne SMILES 

[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

Clé InChI

CTIQLGJVGNGFEW-UHFFFAOYSA-L

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Description générale

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.

Conditionnement

Bottomless glass bottle. Contents are inside inserted fused cone.

Produits recommandés

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.

Pictogrammes

Health hazardExclamation mark

Mention d'avertissement

Warning

Mentions de danger

Classification des risques

Skin Sens. 1 - STOT RE 2

Code de la classe de stockage

11 - Combustible Solids

Classe de danger pour l'eau (WGK)

WGK 2

Point d'éclair (°F)

Not applicable

Point d'éclair (°C)

Not applicable

Équipement de protection individuelle

Eyeshields, Gloves, type N95 (US)


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Certificats d'analyse (COA)

Lot/Batch Number

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Consulter la Bibliothèque de documents

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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