Sulfanilic acid
TL;DR: Sulfanilic acid (CAS 121-57-3) is a chemical compound with molecular formula C6H7NO3S and molecular weight 173.01466 g/mol, supplied by CoreyChem (Career Henan Chemical Co., Ltd.) with ISO-certified quality and global shipping.
对氨基苯磺酸
4-aminobenzenesulfonic acid
Also Known As: SULFANILIC ACID, 4-Aminobenzenesulfonic acid, Sulphanilic acid, Sulfanilsaeure, Aniline-4-sulfonic acid
Application Areas
Top 5 of 22 IPC patent classification(s) from the SureChEMBL global patent database.
Technical Specifications
| Molecular Formula | C6H7NO3S |
| Molecular Weight | 173.01466 g/mol |
| XLogP | -0.6 |
| Topological Polar Surface Area (TPSA) | 88.8 Ų |
| Hydrogen Bond Donors | 2 |
| Hydrogen Bond Acceptors | 4 |
| Rotatable Bonds | 1 |
| Exact Mass | 173.01466 Da |
| Heavy Atoms | 11 |
| Complexity | 210.0 |
| Melting Point | Decomposes without melting at 550 °F (NTP, 1992) |
| Density | 1.485 at 77 °F (NTP, 1992) - Denser than water; will sink |
| Vapor Pressure | 0.0000002 [mmHg] |
| Solubility | less than 1 mg/mL at 68 °F (NTP, 1992) |
| SMILES | C1=CC(=CC=C1N)S(=O)(=O)O |
| InChIKey | HVBSAKJJOYLTQU-UHFFFAOYSA-N |
Product Description
Applications: Sulfanilic acid is used in pharmaceutical synthesis routes and API production, as well as dye and pigment synthesis and coloration chemistry. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project (mg to ton scale), with full analytical documentation (COA, MSDS, HPLC, NMR, MS).
A pharmaceutical intermediate supplied by CoreyChem, Sulfanilic acid (CAS 121-57-3) has the molecular formula C6H7NO3S and a molecular weight of 173.01 g/mol. Reported properties include a density of 1.485 at 77 °F (NTP, 1992) - Denser than water; will sink g/cm³, a solubility: less than 1 mg/mL at 68 °F (NTP, 1992). Synonyms include SULFANILIC ACID and 4-Aminobenzenesulfonic acid.
Custom synthesis (mg to ton scale), HPLC/NMR/MS analytical support, and complete COA/MSDS documentation are available from CoreyChem. Request a quotation with your required quantity and purity for current lead time and pricing.
Chemical Property Profile of Sulfanilic acid
Property Insights of Sulfanilic acid
The XLogP value of -0.6 indicates that Sulfanilic acid is hydrophilic (water-soluble), making it suitable for aqueous formulations and biological assay applications. The TPSA of 88.8 Ų falls within the moderate polarity range, balancing permeability and solubility for Sulfanilic acid. Following Lipinski's Rule of Five, Sulfanilic acid has 2 hydrogen bond donor(s) and 4 hydrogen bond acceptor(s), all within the drug-like range, suggesting favorable oral bioavailability potential.
Frequently Asked Questions
What is the CAS number of Sulfanilic acid?
The CAS number of Sulfanilic acid is 121-57-3.
What is the molecular formula of Sulfanilic acid?
The molecular formula of Sulfanilic acid is C6H7NO3S.
What is the molecular weight of Sulfanilic acid?
The molecular weight of Sulfanilic acid is 173.01466 g/mol.
What are the applications of Sulfanilic acid?
Sulfanilic acid is used in pharmaceutical synthesis routes and API production, as well as dye and pigment synthesis and coloration chemistry. It commonly serves as a versatile building block for organic synthesis. Available from CoreyChem as both catalog item and custom-synthesis project (mg to...
Where can I buy Sulfanilic acid?
You can request a quote for Sulfanilic acid directly from CoreyChem. Contact us or email [email protected] for pricing and availability.
Does CoreyChem offer custom synthesis for Sulfanilic acid?
Yes, CoreyChem provides custom synthesis services for Sulfanilic acid and related compounds. Contact us with your specific requirements including quantity, purity, and timeline.