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249548

Sigma-Aldrich

2-Naphthalenesulfonic acid

technical grade, 70%

Synonym(s):

β-Naphthalenesulfonic acid, 2-Naphthylsulfonic acid, 2-Sulfonaphthalene

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About This Item

Linear Formula:
C10H7SO3H
CAS Number:
120-18-3
Molecular Weight:
208.23
MDL number:
MFCD00004089
UNSPSC Code:
12352100
PubChem Substance ID:
24855002
NACRES:
NA.22

grade

technical grade

Quality Level

200

Assay

70%

form

solid

solubility

water: freely soluble(lit.)

SMILES string

OS(=O)(=O)c1ccc2ccccc2c1

InChI

1S/C10H8O3S/c11-14(12,13)10-6-5-8-3-1-2-4-9(8)7-10/h1-7H,(H,11,12,13)

InChI key

KVBGVZZKJNLNJU-UHFFFAOYSA-N

Gene Information

human ... EGFR(1956) , LCK(3932)

General description

The fluorescence of 2-naphthalenesulfonic acid (NSA) is effectively quenched by colloidal silver via photoinduced interfacial electron transfer from the excited singlet of NSA to silver. Adsorption behavior of NSA on a conventional macroporous resin Amberlite XAD4 and hypercrosslinked resins NDA101 and NDA100 has been investigated.

Physical properties

Contains up to 15% sulfuric acid

Pictograms

Corrosion
GHS05

Signal Word

Danger

Hazard Statements

H290,H314

Hazard Classifications

Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1A

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Capillary electrophoresis is commonly applied for the analysis of pharmaceutical products due to its high separation efficiency and selectivity. For this purpose, electrospray-ionization-(ESI)-interfering additives or electrolytes are often required, which complicates the identification of impurities and degradation products by mass
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In order to ensure the stability of pharmaceutical products appropriate manufacturing and storage conditions are required. In general, the degradation of active pharmaceutical ingredients (APIs) and subsequent formation of degradation products affect the pharmaceutical quality. Thus, a fast and effective
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Sensors (Basel, Switzerland), 18(6) (2018-06-09)
Detection of salivary pepsin has been given attention as a new diagnostic tool for laryngopharyngeal reflux (LPR) disease, because saliva collection is non-invasive and relatively comfortable. In this study, we prepared polypyrrole nanocorals (PPNCs) on a screen-printed carbon electrode (SPCE)
Colloidal silver as a quencher for the fluorescence of 2-naphthalenesulfonic acid.
Zang L, et al.
Journal of the Chemical Society. Chemical Communications, 4, 447-448 (1995)
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