Prudence Lifecare Pvt. Ltd.
4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide
Manufactured and supplied from our WHO-GMP, GLP and ISO 9001:2015 certified facility in Ankleshwar, Gujarat, India. This is the direct, one-step precursor to Torsemide — reacting with isopropyl isocyanate to give the finished loop-diuretic API.
- CAS Number
- 72811-73-5
- Molecular Weight
- 263.32 g/mol
- Product Type
- API Intermediate
- Used to Manufacture
- Torsemide
What is this intermediate?
4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide — also known as SMPAP or 4-(m-tolylamino)pyridine-3-sulfonamide — is prepared by reacting 4-chloropyridine-3- sulfonamide with m-toluidine (3-methylaniline). It is the direct, final-step precursor to Torsemide: reacted with isopropyl isocyanate, it forms the finished loop-diuretic API in a single step. Prudence Lifecare also manufactures 4-Hydroxy Pyridine 3-Sulfonic Acid, an upstream building block in the same synthesis route, alongside the finished Torsemide API itself.
4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide – chemical name, synonyms & CAS number
4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide (CAS 72811-73-5) is listed and searched under several names. Any of the identifiers below can be used when you send an enquiry to Prudence LifeCare.
- Product name: 4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide
- Chemical name (IUPAC): 4-[(3-methylphenyl)amino]pyridine-3-sulfonamide
- Also known as: 4-(m-Tolylamino)pyridine-3-sulfonamide; 4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide
- CAS number: 72811-73-5
- Molecular formula / weight: C12H13N3O2S / 263.32 g/mol
- Used in the synthesis of: Torsemide (CAS 56211-40-6)
Application
- Torsemide synthesis — final-step intermediate
- Loop diuretic API manufacturing
- Custom synthesis & CDMO supply
- Pharmaceutical research & QC reference
Chemical & technical data
Full verified identifiers for this intermediate, cross-checked against supplier reference data.
| Product Name | 4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide |
|---|---|
| CAS Number | 72811-73-5 |
| Molecular Formula | C12H13N3O2S |
| Molecular Weight | 263.32 g/mol |
| Melting Point | 162–164 °C |
| IUPAC Name | 4-[(3-methylphenyl)amino]pyridine-3-sulfonamide |
| InChIKey | ZXPCUGWAKUIOOF-UHFFFAOYSA-N |
| Product Type | Active Pharmaceutical Ingredient (API) intermediate |
| Downstream API | Torsemide (CAS 56211-40-6) |
Also known industry-wide as Torsemide EP Impurity B / USP Related Compound A. Specification, purity grade, packaging and Certificate of Analysis details available on request.
Manufacturing & supply
Prudence Lifecare Pvt. Ltd., Unit-II of Prudence Pharma Chem (established 2003), is a WHO, GMP, GLP and ISO 9001:2015 certified Active Pharmaceutical Ingredient and intermediates manufacturer based in GIDC Ankleshwar, Gujarat, India. This intermediate is manufactured under the same quality systems that govern our full API and intermediates portfolio, supplying formulation companies, API manufacturers and contract manufacturers across India and exporting to Asia, Europe, Africa and the Middle East.
Quality, certifications & documentation
- WHO-GMP, GLP, ISO 9001:2015 and ISO 14001 certified facility
- Certificate of Analysis (CoA) available on request
- Custom purity/particle-size specifications available on request
Why choose Prudence Lifecare
- WHO, GMP, GLP and ISO-certified facility in Ankleshwar, Gujarat, India
- In-house manufacture of both major Torsemide synthesis intermediates
- Also the manufacturer of the finished Torsemide API
- Export experience across Asia, Europe, Africa and the Middle East
- Custom synthesis and contract manufacturing (CDMO) capability
Frequently asked questions
What is 4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide used for?
It is the direct, final-step precursor to Torsemide, reacting with isopropyl isocyanate to give the finished API.
What is the CAS number of this intermediate?
72811-73-5.
What is the molecular formula of this intermediate?
C12H13N3O2S.
What is the molecular weight of this intermediate?
263.32 g/mol.
How is this intermediate made?
It is prepared by reacting 4-chloropyridine-3-sulfonamide with m-toluidine (3-methylaniline).
What is the full chemical name of 4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide?
The chemical (IUPAC) name of 4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide is 4-[(3-methylphenyl)amino]pyridine-3-sulfonamide. It is also known as 4-(m-Tolylamino)pyridine-3-sulfonamide; 4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide.
What is the 4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide price in India?
The price of 4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide depends on order quantity, grade, documentation requirements and destination. Share your requirement with the Prudence LifeCare sales team to receive a current quotation.
Who manufactures this intermediate in India?
Prudence Lifecare Pvt. Ltd. manufactures this intermediate at its WHO-GMP certified facility in Ankleshwar, Gujarat, India.
Does Prudence Lifecare also manufacture the finished Torsemide API?
Yes, Prudence Lifecare manufactures Torsemide (CAS 56211-40-6) to IP, BP, EP and USP standards.
What other Torsemide intermediate does Prudence Lifecare manufacture?
Prudence Lifecare also manufactures 4-Hydroxy Pyridine 3-Sulfonic Acid, an upstream building block in the same synthesis route.
Does Prudence Lifecare export this intermediate internationally?
Yes, Prudence Lifecare exports its API and intermediates portfolio to Asia, Europe, Africa and the Middle East.
How can I request a quote or technical documentation?
Use the "Request a quote" button on this page or visit our Contacts page.
Which product has CAS number 72811-73-5?
CAS number 72811-73-5 identifies 4-(3-Methylphenyl)Amino-3-Pyridine Sulfonamide. Prudence LifeCare manufactures and supplies 4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide (CAS 72811-73-5) from Ankleshwar, Gujarat, India.
What is the specification of 4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide?
4-(3-Methyl Phenyl) Amino-3-Pyridine Sulfonamide is supplied with a batch-wise Certificate of Analysis (CoA). Detailed specifications are shared on request.
Need pricing, a Certificate of Analysis, or technical documentation for this intermediate?
Contact our export sales team