Chromotrope 2B
Buy Chromotrope 2B (CAS 548-80-1) from Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-037080.
About Chromotrope 2B
Chromotrope 2B sits in our stains, Fluorescent Dyes & Histology Reagents section and ships worldwide from stock or short lead time. For your records, the material is defined by CAS 548-80-1, formula C16H9N3Na2O10S2 and molar mass 513.4 g/mol.
Common uses in the lab and plant
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Safe handling
Hazard communication follows GHS (Warning: H315, H319 and H335). Our SDS lists exposure controls and first-aid measures.
Order it in 5 g and 25 g packs or ask for a bulk quotation. You receive a batch certificate of analysis and a 16-section SDS with each order. Request pricing online and we confirm availability, documentation and freight to your country.
Typical uses
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Applications
Specifications and identifiers
| Product name | Chromotrope 2B |
|---|---|
| Catalogue number | ZX-037080 |
| CAS number | 548-80-1 |
| IUPAC name | disodium;4,5-dihydroxy-3-[(4-nitrophenyl)diazenyl]naphthalene-2,7-disulfonate |
| Molecular formula | C16H9N3Na2O10S2 |
| Molar mass | 513.4 g/mol |
| Exact mass | 512.9525 |
| H-bond donors / acceptors | 2 / 12 |
| Topological polar surface area | 242 Ų |
| HS code | 29270090 |
| InChIKey | AXUUHWJXDWBCSG-UHFFFAOYSA-L |
| SMILES | C1=CC(=CC=C1N=NC2=C(C3=C(C=C(C=C3C=C2S(=O)(=O)[O-])S(=O)(=O)[O-])O)O)[N+](=O)[O-].[Na+].[Na+] |
| PubChem CID | 68360 |
| Synonyms | Chromotrope Red 4B, Khromotrop 2B, Naphtocard Fast Red 3B, C.I. Acid Red 176, C.I. Acid Red 176 (VAN), p-Nitrobenzeneazochromotropic acid sodium salt, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-((4-nitrophenyl)azo)-, disodium salt, C.I. Acid Red 176, disodium salt, PCR 2B, CR-2B, Disodium 4,5-dihydroxy-3-(p-nitrophenylazo)naphthalene-2,7-disulphonate, 2,7-Naphthalenedisulfonic acid, 4,5-dihydroxy-3-[(4-nitrophenyl)azo]-, disodium salt |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H315Causes skin irritation
- H319Causes serious eye irritation
- H335May cause respiratory irritation
Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P351 + P338, P319, P321, P332 + P317, P337 + P317, P362 + P364, P403 + P233, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 5 g | Quoted on request | |
| 25 g | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Chromotrope 2B
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Other grades with CAS 548-80-1
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