Description

(Phenylamino)methanesulfonic acid (CAS No. 103-06-0) is a high-purity sulfonic acid derivative with the molecular formula C₇H₉NO₃S. This compound, also known by its IUPAC name anilinomethanesulfonic acid, is a white to off-white crystalline powder with applications in organic synthesis, pharmaceutical research, and material science. It exhibits excellent solubility in polar solvents such as water, methanol, and dimethyl sulfoxide (DMSO), making it suitable for a variety of reaction conditions. With a molecular weight of 187.22 g/mol, this reagent is characterized by its sulfonate functional group, which enhances reactivity in nucleophilic substitution and coupling reactions. Ideal for researchers seeking a stable and versatile sulfonic acid derivative, our product is rigorously tested for purity (≥98% by HPLC) and consistency, ensuring reliable performance in synthetic workflows. Store in a cool, dry place away from strong oxidizing agents.

Properties

• CAS Number: 103-06-0
• Complexity: 213
• IUPAC Name: anilinomethanesulfonic acid
• InChI: InChI=1S/C7H9NO3S/c9-12(10,11)6-8-7-4-2-1-3-5-7/h1-5,8H,6H2,(H,9,10,11)
• InChI Key: QKZIVVMOMKTVIK-UHFFFAOYSA-N
• Exact Mass: 187.03031432
• Molecular Formula: C7H9NO3S
• Molecular Weight: 187.22
• SMILES: C1=CC=C(C=C1)NCS(=O)(=O)O
• Topological: 74.8
• Monoisotopic Mass: 187.03031432
• Synonyms: METHANESULFONIC ACID ANILINE, Methanesulfonic acid, (phenylamino)-, (phenylamino)methanesulfonic acid, anilino-methanesulfonic acid, Anilinomethanesulphonic acid, NWW345VUM2, NSC-7802, Methanesulfonic acid, 1-(phenylamino)-, DTXSID8059267, DTXCID8032754, 103-06-0, Anilinomethanesulfonic acid, N-(Sulfomethyl)aniline, Methanesulfonic acid, anilino-, Anilinomethanesulfonate, Aniline-omega-acid, Aniline-omega-sulfonic acid, NSC 7802, EINECS 203-076-5, Aniline-.omega.-acid, UNII-NWW345VUM2, Aniline-.omega.-sulfonic acid, Anilino-N-methanesulfonic acid, (phenylamino)methanesulfonicacid, SCHEMBL1956114, SCHEMBL3395150, SCHEMBL6237489, SCHEMBL9158772, CHEMBL1207666, NSC7802, QKZIVVMOMKTVIK-UHFFFAOYSA-N, AKOS006274637, NS00023202

Application

(Phenylamino)methanesulfonic acid is widely used as an intermediate in the synthesis of pharmaceuticals, agrochemicals, and specialty chemicals. Its sulfonate group facilitates the preparation of sulfonamide derivatives, which are key motifs in drug discovery. Researchers also employ this compound in the development of dyes, surfactants, and corrosion inhibitors due to its reactive aniline and sulfonic acid functionalities. Additionally, it serves as a building block in polymer chemistry for modifying material properties.

Safety and Hazards

GHS Hazard Statements

• Not Classified
• Reported as not meeting GHS hazard criteria by 1 of 1 companies. For more detailed information, please visit ECHA C&L website.

Hazard Classes and Categories

• Not Classified

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