Skip to Content
MilliporeSigma
All Photos(2)

Documents

49547

Supelco

Naphthol Yellow S

analytical standard

Synonym(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

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C10H4N2Na2O8S
CAS Number:
846-70-8
Molecular Weight:
358.19
Colour Index Number:
10316
Beilstein/REAXYS Number:
3839220
EC Number:
212-690-2
MDL number:
MFCD00003958
UNSPSC Code:
85151701
PubChem Substance ID:
329757474
NACRES:
NA.24

grade

analytical standard

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

Related Categories

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.

Recommended products

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.

pictograms

Health hazardExclamation mark
GHS08,GHS07

signalword

Warning

hcodes

H317,H373

Hazard Classifications

Skin Sens. 1 - STOT RE 2

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
1405585V
1405585

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service