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Home/Compounds/CAS 20856-80-8
Formula C8H4I2O4MW 417.92Research-use catalog entryCOA/SDS by request

2,5-Diiodobenzene-1,4-dicarboxylic acid

CAS Number: 20856-80-8

Sourcing & RFQ

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Loading RDKit molecule structure...
InChIKey: VMNGRUVXBDBCGB-UHFFFAOYSA-NC8H4I2O4 | MW 417.92

Chemical Absolute Identifiers

CAS Number

20856-80-8

PubChem CID

21404988

Molecular Formula

C8H4I2O4

Molecular Weight

417.92 g/mol

Exact Mass

417.8199

InChIKey

VMNGRUVXBDBCGB-UHFFFAOYSA-N

IUPAC Name

2,5-diiodoterephthalic acid

SMILES String

O=C(O)c1cc(I)c(C(=O)O)cc1I

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

2,5-Diiodobenzene-1,4-dicarboxylic acid (CAS 20856-80-8) is listed in the Advanced Chemicals portfolio, with molecular formula C8H4I2O4 and molecular weight 417. 92 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

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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Safety Reference / SDS Request

Names & Synonyms / External Identifiers

Chemical Name

2,5-Diiodobenzene-1,4-dicarboxylic acid

Names & Synonyms

1,4-Benzenedicarboxylic acid, 2,5-diiodo-2,5-diiodo-1,4-dibenzoic acid25-Diiodoterephthalic acid
External Identifiers
DSSTOX SUBSTANCE ID: DTXSID30613187WIKIDATA ID: Q82513763

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

4,5-Difluoro-2-iodobenzoic acidCAS 130137-05-2
2-Iodo-4,5-dimethylbenzoic acidCAS 35149-23-6
2-Iodo-4,5-dimethoxybenzoic acidCAS 61203-48-3
5-Hydroxy-2-iodobenzoic acidCAS 57772-57-3
2,4-Difluoro-5-iodobenzoic acidCAS 161531-51-7

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 130137-05-24,5-Difluoro-2-iodobenzoic acidCAS 35149-23-62-Iodo-4,5-dimethylbenzoic acidCAS 61203-48-32-Iodo-4,5-dimethoxybenzoic acidCAS 57772-57-35-Hydroxy-2-iodobenzoic acidCAS 161531-51-72,4-Difluoro-5-iodobenzoic acidCAS 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 20856-80-8

What are the key identifiers for 2,5-Diiodobenzene-1,4-dicarboxylic acid (CAS 20856-80-8)?

2,5-Diiodobenzene-1,4-dicarboxylic acid is identified by CAS 20856-80-8, with molecular formula C8H4I2O4, molecular weight 417.92, InChIKey VMNGRUVXBDBCGB-UHFFFAOYSA-N.

Can I request a COA for CAS 20856-80-8?

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

Can I request supplier SDS for 2,5-Diiodobenzene-1,4-dicarboxylic acid?

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

Is CAS 20856-80-8 available for quotation?

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

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