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Home/Compounds/CAS 2425-85-6
Formula C17H13N3O3MW 307.3Research-use catalog entryCOA/SDS by request

Toluidine Red

CAS Number: 2425-85-6

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Available options

Available Options

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1 g
Purity
97%
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Purity
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25 g
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Purity
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Loading RDKit molecule structure...
InChIKey: ZLFVRXUOSPRRKQ-UHFFFAOYSA-NC17H13N3O3 | MW 307.3

Chemical Absolute Identifiers

CAS Number

2425-85-6

PubChem CID

17047

Molecular Formula

C17H13N3O3

Molecular Weight

307.3 g/mol

Exact Mass

307.095691

InChIKey

ZLFVRXUOSPRRKQ-UHFFFAOYSA-N

IUPAC Name

1-[(4-methyl-2-nitrophenyl)diazenyl]naphthalen-2-ol

SMILES String

CC1=CC(=C(C=C1)N=NC2=C(C=CC3=CC=CC=C32)O)[N+](=O)[O-]

Physical Properties

Appearance

Yellowish-red to red powder or solid. (NTP, 1992)

Melting Point

27–272.22 °C

Density

1.37 g/cm³

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

Catalog Facts

Structural features

Toluidine Red (CAS 2425-85-6) is listed in the Advanced Chemicals portfolio, with molecular formula C17H13N3O3 and molecular weight 307. 30 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

Handling & Storage

  • Keep container tightly closed and dry.
  • Store in a well-ventilated place.

PPE

Respiratory protection if needed

First Aid

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

Stability / Reactivity

  • Reactivity and reaction conditions.
  • Carbon monoxide, carbon dioxide, nitrogen oxides.

Disposal

  • Dispose of remaining and non-recyclable solutions to a licensed company.
  • Contact a professional agency with a waste disposal license to handle this substance.
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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

Toluidine Red

Names & Synonyms

Hansa Red BPermanent Red 4RFast Red RToluidine TonerIndependence Red
Show all synonyms
Helio Fast Red RNChromatex Red JHelio Red TonerToluidine Red RDeep Fastona RedFastona Red BSilosol Red RNHansa Scarlet RBHansa Scarlet RNSiegle Red BSilosol Red RBNSiloton Red RLLSiegle Red BBHansa Red GHelio Red RL
External Identifiers
EC NUMBER: 219-372-2DSSTOX SUBSTANCE ID: DTXSID8021226CHEMBL ID: CHEMBL2138372CHEBI ID: CHEBI:82428UNII: 7K26S08256KEGG ID: C19373WIKIDATA ID: Q126677541
Experimental Spectrum References
1D NMR SpectraFTIR Spectra — SRL

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

Para RedCAS 6410-10-2
C.I. Solvent Red 26CAS 4477-79-6
C.I. Solvent Red 80CAS 6358-53-8
1-(2-Pyridylazo)-2-naphtholCAS 85-85-8
Fast Sulphon Black FCAS 3682-47-1

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 6410-10-2Para RedCAS 4477-79-6C.I. Solvent Red 26CAS 6358-53-8C.I. Solvent Red 80CAS 85-85-81-(2-Pyridylazo)-2-naphtholCAS 3682-47-1Fast Sulphon Black FCAS 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 2425-85-6

What are the key identifiers for Toluidine Red (CAS 2425-85-6)?

Toluidine Red is identified by CAS 2425-85-6, with molecular formula C17H13N3O3, molecular weight 307.3, InChIKey ZLFVRXUOSPRRKQ-UHFFFAOYSA-N.

Can I request a COA for CAS 2425-85-6?

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

Can I request supplier SDS for Toluidine Red?

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

Is CAS 2425-85-6 available for quotation?

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

Can MolGraph support bulk sourcing or custom synthesis review?

Submit the CAS number, quantity, purity requirement, and destination country for sourcing review.