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Home/Compounds/CAS 5402-20-0
Formula C5H5NO3SMW 159.17Research-use catalog entryCOA/SDS by request

4-Pyridinesulfonic acid

CAS Number: 5402-20-0

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Available Options

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Loading RDKit molecule structure...
InChIKey: PTWLOSARXIJRRJ-UHFFFAOYSA-NC5H5NO3S | MW 159.17

Chemical Absolute Identifiers

CAS Number

5402-20-0

PubChem CID

221127

Molecular Formula

C5H5NO3S

Molecular Weight

159.17 g/mol

Exact Mass

158.999014

InChIKey

PTWLOSARXIJRRJ-UHFFFAOYSA-N

IUPAC Name

pyridine-4-sulfonic acid

SMILES String

C1=CN=CC=C1S(=O)(=O)O

Physical Properties

No physical property values available.

Properties are provided as catalog reference data and may be confirmed through supplier documentation when required.

Catalog Facts

Structural features

4-Pyridinesulfonic acid (CAS 5402-20-0) is listed in the Advanced Chemicals portfolio, with molecular formula C5H5NO3S and molecular weight 159. 17 g/mol.

Sourcing context

Catalog reference for RFQ preparation, supplier confirmation, and research chemical sourcing review.

Research use context

Intended for research building-block and synthetic chemistry workflows; structure-derived tags include nitrogen-containing heterocycle.

Documentation needs

COA/SDS status, availability, lead time, pack size, and shipment documentation can be confirmed during quotation.

Applications & Classification

Organic Building BlocksSynthetic ChemistryResearch intermediateCustom synthesis building blockResearch chemical sourcingCustom synthesis and catalog availability reviewCOA, SDS, pricing, and fulfillment workflow

Safety & Handling

PPE

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First Aid

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Stability / Reactivity

  • and reactivity.

Disposal

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  • Contact a professional agency with a waste disposal license to handle this substance.
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Accidental Release

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  • Avoid dust generation.

For supplier-issued SDS, request documentation before handling, storage, shipment, or procurement decisions.

Preliminary Safety Reference

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Names & Synonyms / External Identifiers

Chemical Name

4-Pyridinesulfonic acid

Names & Synonyms

4-PYRIDINESULPHONIC ACIDPyridine-4-sulphonic acidpyridine, 4-sulpho-
External Identifiers
UNII: BS92GQS9EZ
Experimental Spectrum References
1H NMR Spectra

Documentation & Compliance Facts

Compliance Facts

Shipment review: Required

Documentation available by request

Certificate of Analysis (COA): By request

Supplier Safety Data Sheet (SDS): By request

Purity and pack size confirmation: By request

Availability and lead time review: Confirmed by RFQ

Shipment documentation review: By request

For supplier-issued documentation by request, use the RFQ actions on this page.Review preliminary safety reference

What happens after RFQ

  1. 1We review the CAS identity, quantity, and documentation request.
  2. 2We check sourcing options, supplier availability, COA/SDS, purity, pack size, and lead time.
  3. 3We review destination and shipment documentation needs when applicable.
  4. 4We follow up with a quotation or clarification request.

Text Reference Cues

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Non-public related references

Benzenesulfonic acid, ammonium saltCAS 19402-64-3
p-Chlorobenzenesulfonic acidCAS 98-66-8
4-Hydroxy-3-pyridinesulphonic acidCAS 51498-37-4
4-Methylpyridine-3-sulfonic acidCAS 4808-71-3
4-Chloropyridine-3-sulfonic acidCAS 51498-38-5

Non-public references are shown as text only and do not imply equivalence, availability, or shared use.

Catalog navigation

Related Catalog Entries

Other public CAS pages in this catalog. These links support navigation across additional intermediates and do not imply equivalence, availability, or shared use.

CAS 19402-64-3Benzenesulfonic acid, ammonium saltCAS 98-66-8p-Chlorobenzenesulfonic acidCAS 51498-37-44-Hydroxy-3-pyridinesulphonic acidCAS 4808-71-34-Methylpyridine-3-sulfonic acidCAS 51498-38-54-Chloropyridine-3-sulfonic acidCAS 4556-23-4pyridine-4-thiolCAS 2645-22-94,4'-DithiodipyridineCAS 5421-92-11,4'-Bipyridinium, chloride, hydrochloride (1:1:1)CAS 1002310-00-0Tert-butyl 1-(2-chloro-4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)phenyl)ethylcarbamateCAS 1005174-17-3(E)-3-(2-Propyl-6-(trifluoromethyl)pyridin-3-yl)acrylic acid

RFQ questions for CAS 5402-20-0

What are the key identifiers for 4-Pyridinesulfonic acid (CAS 5402-20-0)?

4-Pyridinesulfonic acid is identified by CAS 5402-20-0, with molecular formula C5H5NO3S, molecular weight 159.17, InChIKey PTWLOSARXIJRRJ-UHFFFAOYSA-N.

Can I request a COA for CAS 5402-20-0?

Yes. Submit an RFQ and specify COA requirements. Lot-specific COA depends on supplier confirmation.

Can I request supplier SDS for 4-Pyridinesulfonic acid?

Yes. Supplier SDS can be requested through the RFQ workflow before handling, storage, shipment, or procurement decisions.

Is CAS 5402-20-0 available for quotation?

Availability, pack size, lead time, and pricing are confirmed through RFQ.

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