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VAQORAStains, Fluorescent Dyes & Histology ReagentsAvailable on request
Ponceau 4R
Synonyms: New Coccine · Acid Red 18 · C.I. Acid Red 18, Trisodium Salt · C.I. Acid Red 18
CAS No.2611-82-7
FormulaC20H11N2Na3O10S3
Mol. weight604.50
Catalogue No.VQ-000686
PurityOn COA
HSN29399900
Ponceau 4R (CAS 2611-82-7) – biological stain. C20H11N2Na3O10S3, MW 604.5. Get a quote from Vaqora Chemicals, COA included, shipped worldwide.
Batch COA with every lot
16-section GHS SDS
Export to 120+ countries
DG-compliant packing
About Ponceau 4R
Ponceau 4R is a biological stain carrying the CAS registry number 2611-82-7. Its molecular formula is C20H11N2Na3O10S3 and its molecular weight is 604.5 g/mol. The IUPAC name is trisodium, 7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate. Common synonyms include New Coccine and Acid Red 18.
In its supplied form it is a dark red powder. Keep the container tightly sealed and store it in a cool, dry area. Good laboratory practice and suitable PPE are recommended during handling.
Key uses span histology and cytology staining, microscopy and clinical laboratories. It is used across academic and industrial research, diagnostics and biotechnology and textiles and dyeing.
Vaqora Chemicals supplies Ponceau 4R in 10 g, 25 g, 100 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide. SDS and detailed specification sheets can be requested with your quotation.
Typical applications
- Histology & cytology staining
- Microscopy
- Clinical laboratories
Industries
Specifications & identifiers
| Product name | Ponceau 4R |
|---|---|
| Catalogue No. | VQ-000686 |
| CAS Number | 2611-82-7 |
| IUPAC name | trisodium;7-hydroxy-8-[(4-sulfonatonaphthalen-1-yl)diazenyl]naphthalene-1,3-disulfonate |
| Molecular formula | C20H11N2Na3O10S3 |
| Molecular weight | 604.5 g/mol |
| Exact mass | 603.9269 |
| HSN code | 29399900 |
| InChIKey | SWGJCIMEBVHMTA-UHFFFAOYSA-K |
| SMILES | C1=CC=C2C(=C1)C(=CC=C2S(=O)(=O)[O-])N=NC3=C(C=CC4=CC(=CC(=C43)S(=O)(=O)[O-])S(=O)(=O)[O-])O.[Na+].[Na+].[Na+] |
| PubChem CID | 17466 |
| Physical form | Powder |
|---|---|
| Appearance | Dark red powder |
| H-bond donors / acceptors | 1 / 12 |
| TPSA | 242 Ų |
| Synonyms | New Coccine, Acid Red 18, C.I. Acid Red 18, Trisodium Salt, C.I. Acid Red 18, Victoria Scarlet 3R, SX Purple, Brilliant Scarlet 4R, Coccine, Colacid Ponceau 4R, Food Red 7, Acilan Scarlet V3R, Acid Brilliant Scarlet 3R |
Documents
Frequently asked questions
What is the CAS number of Ponceau 4R?
The CAS Registry Number of Ponceau 4R is 2611-82-7. It is also known as New Coccine, Acid Red 18, C.I. Acid Red 18, Trisodium Salt.
What is the molecular formula and molecular weight of Ponceau 4R?
Ponceau 4R has the molecular formula C20H11N2Na3O10S3 and a molecular weight of 604.5 g/mol.
Which grade and pack sizes of Ponceau 4R can I order?
We supply Ponceau 4R, in 10 g, 25 g, 100 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.
Do you provide a COA and SDS with Ponceau 4R?
Yes. Every lot of Ponceau 4R is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.
Can Ponceau 4R be shipped internationally?
Yes. We export Ponceau 4R worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.
Enquire about Ponceau 4R
We reply within one business day with price, pack options, lead time and documentation.
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