6-p-Toluidino-2-naphthalenesulfonic acid，potassium salt - ≥98% , CAS No.32752-10-6

CAS: 32752-10-6 Cat. No.: T275237 Molecular Weight: 351.46 EC Number: 251-196-1 PubChem CID: 23666335

GRADE & PURITY ≥98%

Synonyms

DTXSID10954404 | Potassium 6-(4-methylanilino)naphthalene-2-sulfonate | 6-(p-Toluidino)-2-naphthalenesulfonic acid, potassium salt | A821395 | Potassium 6-(p-tolylamino)naphthalene-2-sulfonate | potassium 6-[(4-methylphenyl)amino]naphthalene-2-sulfonate |

Storage

Store at 2-8°C,Protected from light,Desiccated

Shipped In

Wet ice

Overview

Shipped at 4°C. Store at +4°C. Store In the Dark. Store under desiccating conditions.

Specifications

Synonyms

DTXSID10954404 | Potassium 6-(4-methylanilino)naphthalene-2-sulfonate | 6-(p-Toluidino)-2-naphthalenesulfonic acid, potassium salt | A821395 | Potassium 6-(p-tolylamino)naphthalene-2-sulfonate | potassium 6-[(4-methylphenyl)amino]naphthalene-2-sulfonate |

Specifications & Purity

≥98%

Biochemical and Physiological Mechanisms

Fluorescent probe for measuring protein conformational changes and quantitative\xa0measurement of protein hydrophobicity processes that modify the exposure of the probe to water.\xa0Essentially\xa0nonfluorescent in water.

Storage

Store at 2-8°C, Protected from light, Desiccated

Shipped In

Wet ice

This product requires cold chain shipping. Ground and other economy services are not available.

Note

Refer to SDS for further information Need more advice on solubility, usage and handling? Please visit our frequently asked questions (FAQ) page for more details.

Purity

≥98%

Names and Identifiers

• Pubchem Sid: 488200423
• Pubchem Sid Url: https://pubchem.ncbi.nlm.nih.gov/substance/488200423
• Canonical Smiles: CC1=CC=C(C=C1)NC2=CC3=C(C=C2)C=C(C=C3)S(=O)(=O)[O-].[K+]
• IUPAC Name: potassium;6-(4-methylanilino)naphthalene-2-sulfonate
• InChIKey: GVDCHDBOXJUSDZ-UHFFFAOYSA-M
• INCHI: 1S/C17H15NO3S.K/c1-12-2-6-15(7-3-12)18-16-8-4-14-11-17(22(19,20)21)9-5-13(14)10-16;/h2-11,18H,1H3,(H,19,20,21);/q;+1/p-1
• Isomeric SMILES: CC1=CC=C(C=C1)NC2=CC3=C(C=C2)C=C(C=C3)S(=O)(=O)[O-].[K+]
• PubChem CID: 23666335
• Molecular Weight: 351.46

Taxonomic Classification

Taxonomy Tree

• Kingdom Organic compounds
  • Superclass Benzenoids
    • Class Naphthalenes
      • Subclass Naphthalene sulfonic acids and derivatives
        • Level5 Naphthalene sulfonates
          • Level6 2-naphthalene sulfonates

• Kingdom: Organic compounds
• Superclass: Benzenoids
• Class: Naphthalenes
• Subclass: Naphthalene sulfonic acids and derivatives
• Intermediate Tree Nodes: Naphthalene sulfonates
• Direct Parent: 2-naphthalene sulfonates
• Alternative Parents: 2-naphthalene sulfonic acids and derivatives 1-sulfo,2-unsubstituted aromatic compounds Aniline and substituted anilines Aminotoluenes Primary aromatic amines Sulfonyls Organosulfonic acids Secondary amines Organic potassium salts Organic oxides Hydrocarbon derivatives Organic cations
• Molecular Framework: Aromatic homopolycyclic compounds
• Substituents: 2-naphthalene sulfonic acid or derivatives - 2-naphthalene sulfonate - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Aminotoluene - Aniline or substituted anilines - Toluene - Monocyclic benzene moiety - Primary aromatic amine - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Secondary amine - Organic alkali metal salt - Organic potassium salt - Organic salt - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur compound - Organonitrogen compound - Amine - Organic nitrogen compound - Organic cation - Aromatic homopolycyclic compound
• Description: This compound belongs to the class of organic compounds known as 2-naphthalene sulfonates. These are organic aromatic compounds that contain a naphthalene moiety that carries a sulfonic acid group at the 2-position. Naphthalene is a bicyclic compound that is made up of two fused benzene ring.
• External Descriptors: Not available

Data sources

1. Djoumbou Feunang Y, Eisner R, Knox C, Chepelev L, Hastings J, Owen G, Fahy E, Steinbeck C, Subramanian S, Bolton E, Greiner R, and Wishart DS. ClassyFire: Automated Chemical Classification With A Comprehensive, Computable Taxonomy. Journal of Cheminformatics, 2016, 8:61.

DOI: 10.1186/s13321-016-0174-y

Chemical and Physical Properties

• Solubility: Soluble in DMSO and in water
• Sensitivity: Moisture & Light Sensitive
• Molecular Weight: 351.500 g/mol
• Hydrogen Bond Donor Count: 1
• Hydrogen Bond Acceptor Count: 4
• Rotatable Bond Count: 3
• Exact Mass: 351.033 Da
• Monoisotopic Mass: 351.033 Da
• Topological Polar Surface Area: 77.600 Ų
• Heavy Atom Count: 23
• Formal Charge: 0
• Complexity: 471.000
• Isotope Atom Count: 0
• Defined Atom Stereocenter Count: 0
• Undefined Atom Stereocenter Count: 0
• Defined Bond Stereocenter Count: 0
• Undefined Bond Stereocenter Count: 0
• The total count of all stereochemical bonds: 0
• Covalently-Bonded Unit Count: 2

XLogP3

References

1. Wenhao Dai, Hongliang Li, Lirong Zhao, Yue Chen, Quan Liu, Huiting Liu, Guozhen Xing, He Fu, Yu Liu.  (2026)  Design and synthesis of novel ionizable lipids enables highly efficient mRNA delivery via lipid nanoparticles.  BIOORGANIC CHEMISTRY,      [PMID:41621179] [10.1016/j.bioorg.2026.109526]