8-Anilino-1-naphthalenesulfonic acid magnesium salt
Synonym(s):1,8-ANS magnesium salt;ANSA magnesium salt;Magnesium 8-anilino-1-naphthalenesulfonate hydrate;N-Phenyl peri acid magnesium salt
- CAS NO.:18108-68-4
- Empirical Formula: C32H24MgN2O6S2
- Molecular Weight: 620.98
- MDL number: MFCD00065353
- EINECS: 242-004-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-05-28 05:54:45
What is 8-Anilino-1-naphthalenesulfonic acid magnesium salt?
Chemical properties
green crystalline powder
The Uses of 8-Anilino-1-naphthalenesulfonic acid magnesium salt
8-Anilino-1-naphthalenesulfonic Acid Hemimagnesium Salt can be used as catalyst use and in engineered or chemical process of sustainable and scalable synthesis of piperylene sulfone as polymerization inhibitor. Dyes and metabolites.
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.
Properties and Applications
GV et al. researched the luminescence of 8-anilino-1-naphthalenesulfonic acid magnesium salt as a hydrophobic probe, which was investigated under the conditions of three-dimensional radical polymerization of methacrylic macromonomers of poly(ethylene oxide) in an aqueous medium. They found that the luminescence intensity rises in the course of gel formation, which is caused by the binding of the probe to hydrophobic polyfunctional branching nodes formed upon the polymerization of terminal methacrylic groups of the macromonomer. Interaction of 8-aniline-1-naphthalenesulfonic acid with a swelled PEO hydrogel also leads to a growth of the luminescence intensity as compared to that in the solution of macromonomers. The addition of NaCl enhances the emission of 8-anilino-1-naphthalenesulfonic acid, probably due to the densification of hydrophobic regions and an increase in the energy of probe binding in these regions[1].
References
[1] Rakova, G. V., and K. S. Kazanskii . "Luminescence of 8-anilino-1-naphthalenesulfonic acid during the formation and swelling of poly(ethylene oxide) hydrogels." Vysokomolekularnye Soedineniya. Ser.A Ser.B Ser.C - Kratkie Soobshcheniya 40.3(1998):501-502.
Properties of 8-Anilino-1-naphthalenesulfonic acid magnesium salt
| Melting point: | >202°C (dec.) |
| storage temp. | room temp |
| solubility | H2O: soluble50mg/mL |
| form | powder |
| color | yellow to green |
| BRN | 4834623 |
| Stability: | Hygroscopic |
| InChI | InChI=1S/2C16H13NO3S.Mg/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);/q;;+2/p-2 |
| CAS DataBase Reference | 18108-68-4(CAS DataBase Reference) |
| EPA Substance Registry System | 1-Naphthalenesulfonic acid, 8-(phenylamino)-, magnesium salt (2:1) (18108-68-4) |
Safety information for 8-Anilino-1-naphthalenesulfonic acid magnesium salt
| Signal word | Warning |
| Pictogram(s) |
![]() Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. |
Computed Descriptors for 8-Anilino-1-naphthalenesulfonic acid magnesium salt
| InChIKey | IRKGXNAZPUOEMW-UHFFFAOYSA-L |
| SMILES | C12C(=CC=CC=1NC1C=CC=CC=1)C=CC=C2S([O-])(=O)=O.C12C(=CC=CC=1NC1=CC=CC=C1)C=CC=C2S([O-])(=O)=O.[Mg+2] |
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