- CAS
- 122555-91-3
- Formula
- C26H50N4O6
- MW
- 514.7 g/mol
Tropeolin OO, indicator
Tropeolin OO, indicator (CAS 554-73-4) supplier Zemixal: C18H14N3NaO3S, COA and SDS with every lot, worldwide shipping. Catalogue no. ZX-000421.
About Tropeolin OO, indicator
Researchers and plant chemists source Tropeolin OO, indicator from Zemixal for routine and specialised work. Identity at a glance: CAS 554-73-4, formula C18H14N3NaO3S and molar mass 375.4 g/mol. Typical appearance is brown to orange powder.
Where it is used
- Titration end-point detection
- pH determination
- Analytical testing
- Indicator for titrations
Storage and safety notes
Solubility: soluble in water. It carries the GHS signal word Warning (H315, H319 and H335), so wear gloves and eye protection and work with good ventilation.
Order it in 25 g, 100 g, 1 kg and 25 kg packs or ask for a bulk quotation. Each lot travels with a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.
Typical uses
- Titration end-point detection
- pH determination
- Analytical testing
- Indicator for titrations
Applications
Specifications and identifiers
| Product name | Tropeolin OO, indicator |
|---|---|
| Catalogue number | ZX-000421 |
| CAS number | 554-73-4 |
| IUPAC name | sodium 4-[(4-anilinophenyl)diazenyl]benzenesulfonate |
| Molecular formula | C18H14N3NaO3S |
| Molar mass | 375.4 g/mol |
| Exact mass | 375.0654 |
| Physical form | Powder |
| Appearance | Brown to orange powder |
| Solubility | Soluble in water |
| H-bond donors / acceptors | 1 / 6 |
| Topological polar surface area | 102 Ų |
| HS code | 32129090 |
| InChIKey | MLVYOYVMOZFHIU-UHFFFAOYSA-M |
| SMILES | C1=CC=C(C=C1)NC2=CC=C(C=C2)N=NC3=CC=C(C=C3)S(=O)(=O)[O-].[Na+] |
| PubChem CID | 23668839 |
| Synonyms | 4-[(4-Anilinophenyl)azo]benzenesulfonic acid sodium salt, Orange IV, Tropaeolin OO, Acid Orange 5, Diphenylamine Orange, C.I. Acid Orange 5, Orange GS, Tropaeolin, Orange N, Solar Orange IV, Acid Yellow D, Orange 4 Lake |
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
| 25 g | Quoted on request | |
| 100 g | Quoted on request | |
| 1 kg | Quoted on request | |
| 25 kg | 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 Tropeolin OO, indicator
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