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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

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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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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