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A5144

Sigma-Aldrich

8-Anilino-1-naphthalenesulfonic acid hemimagnesium salt hydrate

for fluorescence, ≥95% (perchloric acid titration)

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Synonym(s):
1,8-ANS magnesium salt, ANSA magnesium salt, Magnesium 8-anilino-1-naphthalenesulfonate hydrate, N-Phenyl peri acid magnesium salt
Empirical Formula (Hill Notation):
C16H12Mg0.5NO3S · xH2O
CAS Number:
Molecular Weight:
310.49 (anhydrous basis)
Beilstein/REAXYS Number:
4834623
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.47

grade

for fluorescence

Quality Level

assay

≥95% (perchloric acid titration)

form

powder

color

faint green to green

solubility

H2O: 50 mg/mL

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

O.[Mg++].[O-]S(=O)(=O)c1cccc2cccc(Nc3ccccc3)c12.[O-]S(=O)(=O)c4cccc5cccc(Nc6ccccc6)c45

InChI

1S/2C16H13NO3S.Mg.H2O/c2*18-21(19,20)15-11-5-7-12-6-4-10-14(16(12)15)17-13-8-2-1-3-9-13;;/h2*1-11,17H,(H,18,19,20);;1H2/q;;+2;/p-2

InChI key

FBANPIUXAXTAFX-UHFFFAOYSA-L

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General description

ANSA (8-Anilino-1-naphthalenesulfonic acid) is a hydrophobic polarity sensitive fluorescent dye useful as a site probe to detect conformational changes in cell and micelle membranes and molecules such as proteins. ANSA is also used as a fluorescent probe for the estimation of the critical micelle concentration (CMC) of surfactants.

pictograms

Exclamation mark

signalword

Warning

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

target_organs

Respiratory system

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves


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