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Home/Compounds/CAS 121-18-6
Formula C6H4ClNO5SMW 237.62Research-use catalog entryCOA/SDS by request

Benzenesulfonic acid, 4-chloro-3-nitro-

CAS Number: 121-18-6

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Available Options

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1 g
Purity
97%
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Loading RDKit molecule structure...
InChIKey: RPKWNMFDAOACCX-UHFFFAOYSA-NC6H4ClNO5S | MW 237.62

Chemical Absolute Identifiers

CAS Number

121-18-6

PubChem CID

67132

Molecular Formula

C6H4ClNO5S

Molecular Weight

237.62 g/mol

Exact Mass

236.949871

InChIKey

RPKWNMFDAOACCX-UHFFFAOYSA-N

IUPAC Name

4-chloro-3-nitrobenzenesulfonic acid

SMILES String

C1=CC(=C(C=C1S(=O)(=O)O)[N+](=O)[O-])Cl

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

Benzenesulfonic acid, 4-chloro-3-nitro- (CAS 121-18-6) is listed in the Advanced Chemicals portfolio, with molecular formula C6H4ClNO5S and molecular weight 237. 62 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

Safety and handling reference content is available through documentation requests.

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

Benzenesulfonic acid, 4-chloro-3-nitro-

Names & Synonyms

o-Nitrochlorobenzene-p-sulfonic acid2-Nitrochlorobenzene-4-sulfonic acidBenzenesulfonic acid,4-chloro-3-nitro-4-chloro-3-nitro-benzenesulfonic acid4-chloro-3-nitrobenzene-1-sulfonic acid
Show all synonyms
3-Nitro-4-chlorobenzenesulfonic acid4-Chloro-3-nitrobenzenesulphonic acid4-CHLORO-3-NITROBENZENESULFONICACID2-Nitrochlorbenzol-4-sulfosaure1-Chloro-2-nitrobenzene-4-sulfonic acid4-chloro-3-nitrobenzene-1-sulphonic acid
External Identifiers
EC NUMBER: 163-701-1EC NUMBER: 204-452-1DSSTOX SUBSTANCE ID: DTXSID7059519UNII: 8B8TXV456RWIKIDATA ID: Q72455696
Experimental Spectrum References
13C NMR SpectraFTIR 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

Show non-linked catalog cues

Non-public related references

4-Chloro-3-formylbenzenesulfonic acidCAS 60767-69-3
Flavianic acidCAS 483-84-1
3-nitrobenzenesulfonic Acid HydrateCAS 79326-96-8
p-Chlorobenzenesulfonic acidCAS 98-66-8
Benzenesulfonic acid, 3,4-diamino-CAS 7474-78-4

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 60767-69-34-Chloro-3-formylbenzenesulfonic acidCAS 483-84-1Flavianic acidCAS 79326-96-83-nitrobenzenesulfonic Acid HydrateCAS 98-66-8p-Chlorobenzenesulfonic acidCAS 7474-78-4Benzenesulfonic acid, 3,4-diamino-CAS 97-08-5Benzenesulfonyl chloride, 4-chloro-3-nitro-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 acidCAS 1018125-49-92-(3-Cyclopropyl-6-ethyl-4-(trifluoromethyl)-1H-pyrazolo[3,4-b]pyridin-1-yl)acetic acidCAS 1018128-07-8Isopropyl 4-chloro-2-methylquinoline-6-carboxylate

RFQ questions for CAS 121-18-6

What are the key identifiers for Benzenesulfonic acid, 4-chloro-3-nitro- (CAS 121-18-6)?

Benzenesulfonic acid, 4-chloro-3-nitro- is identified by CAS 121-18-6, with molecular formula C6H4ClNO5S, molecular weight 237.62, InChIKey RPKWNMFDAOACCX-UHFFFAOYSA-N.

Can I request a COA for CAS 121-18-6?

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

Can I request supplier SDS for Benzenesulfonic acid, 4-chloro-3-nitro-?

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

Is CAS 121-18-6 available for quotation?

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

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