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Home/Compounds/CAS 4873-56-7
Formula C11H16O3SMW 228.31Research-use catalog entryCOA/SDS by request

Isobutyl p-toluenesulfonate

CAS Number: 4873-56-7

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Loading RDKit molecule structure...
InChIKey: QIMRPGAQCKHRKB-UHFFFAOYSA-NC11H16O3S | MW 228.31

Chemical Absolute Identifiers

CAS Number

4873-56-7

PubChem CID

310590

Molecular Formula

C11H16O3S

Molecular Weight

228.31 g/mol

Exact Mass

228.082016

InChIKey

QIMRPGAQCKHRKB-UHFFFAOYSA-N

IUPAC Name

2-methylpropyl 4-methylbenzenesulfonate

SMILES String

CC1=CC=C(C=C1)S(=O)(=O)OCC(C)C

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

Isobutyl p-toluenesulfonate (CAS 4873-56-7) is listed in the Advanced Chemicals portfolio, with molecular formula C11H16O3S and molecular weight 228. 31 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.

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

Handling & Storage

  • Keep container tightly closed and dry.
  • Store in a well-ventilated place.
  • Avoid contact with skin and eyes.

PPE

Respiratory protection if needed

First Aid

  • Do not give anything to an unconscious person.
  • Rinse mouth with water.

Stability / Reactivity

  • Reactivity and reaction.
  • Carbon monoxide, carbon dioxide, sulfur oxides.

Disposal

  • The product.
  • Dispose of remaining and non-recyclable solutions to a licensed company.
Show additional safety reference fields

Fire Fighting

  • If necessary, wear a self-contained breathing apparatus for firefighting.

Accidental Release

  • Do not generate dust when collecting and disposing.
  • Sweep and shovel up.

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

Preliminary Safety Reference

For supplier-issued SDS or COA, submit a documentation request.

Safety Reference / SDS Request

Names & Synonyms / External Identifiers

Chemical Name

Isobutyl p-toluenesulfonate

Names & Synonyms

Isobutyl 4-methylbenzenesulfonatep-Toluenesulfonic acid isobutyl ester2-methylpropyl 4-methylbenzene-1-sulfonateisobutyl tosylatep-Toluenesulfonic acid, isobutyl ester
Show all synonyms
CCRIS 9147isopropylmethyl tosylate4-methylbenzenesulfonic acid 2-methylpropyl esterBenzenesulfonic acid, 4-methyl-, 2-methylpropyl esterIsobutyl4-methylbenzenesulfonateIsobutyl p-methyl Benzenesulfonic acidtoluene-4-sulfonic acid isobutyl ester
External Identifiers
EC NUMBER: 678-884-8DSSTOX SUBSTANCE ID: DTXSID20964110UNII: CS60887388WIKIDATA ID: Q27275737
Experimental Spectrum References
13C NMR Spectra1H NMR SpectraATR-IR Spectra — Bio-Rad Laboratories, Inc.FTIR SpectraRaman Spectra — Bio-Rad Laboratories, Inc.Vapor Phase IR 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

2,2-Difluoroethyl (4-methylphenyl)sulphonateCAS 135206-84-7
Ethylene glycol ditosylateCAS 6315-52-2
Methylene bis(4-methylbenzene-1-sulfonate)CAS 24124-59-2
(S)-1-Tosyloxy-2,3-propanediolCAS 50765-70-3
Butan-2-yl 4-methylbenzenesulfonateCAS 715-11-7

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 135206-84-72,2-Difluoroethyl (4-methylphenyl)sulphonateCAS 6315-52-2Ethylene glycol ditosylateCAS 24124-59-2Methylene bis(4-methylbenzene-1-sulfonate)CAS 50765-70-3(S)-1-Tosyloxy-2,3-propanediolCAS 715-11-7Butan-2-yl 4-methylbenzenesulfonateCAS 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-carboxylateCAS 1018142-22-76-cyclopropyl-1-(2,2-difluoroethyl)-3-methyl-1H-pyrazolo[3,4-b]pyridine-4-carboxylic acid

RFQ questions for CAS 4873-56-7

What are the key identifiers for Isobutyl p-toluenesulfonate (CAS 4873-56-7)?

Isobutyl p-toluenesulfonate is identified by CAS 4873-56-7, with molecular formula C11H16O3S, molecular weight 228.31, InChIKey QIMRPGAQCKHRKB-UHFFFAOYSA-N.

Can I request a COA for CAS 4873-56-7?

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

Can I request supplier SDS for Isobutyl p-toluenesulfonate?

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

Is CAS 4873-56-7 available for quotation?

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

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