Bromo thymol blue
Order Bromo thymol blue (CAS 76-59-5) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Packs from 5 g.
About Bromo thymol blue
Zemixal supplies Bromo thymol blue within its laboratory Chemicals & Reagents portfolio. Identity at a glance (AR): CAS 76-59-5, formula C27H28Br2O5S and molar mass 624.4 g/mol. Expect pink to brown to purple powder.
Use cases we see most often
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Handling and storage
Literature values: melting point 200-202 °C. It carries the GHS signal word Warning (H302, H315 and H319), so wear gloves and eye protection and work with good ventilation.
Order it in 5 g, 25 g, 100 g, 500 g and 5 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
- Histology & cytology staining
- Microscopy
- Clinical laboratories
- Biological staining
Applications
Grade guides
Specifications and identifiers
| Product name | Bromo thymol blue |
|---|---|
| Catalogue number | ZX-000514 |
| CAS number | 76-59-5 |
| IUPAC name | 2-bromo-4-[3-(3-bromo-4-hydroxy-2-methyl-5-propan-2-ylphenyl)-1,1-dioxo-2,1lambda6-benzoxathiol-3-yl]-3-methyl-6-propan-2-ylphenol |
| Molecular formula | C27H28Br2O5S |
| Molar mass | 624.4 g/mol |
| Exact mass | 624.0004 |
| Grade | AR |
| Physical form | Powder |
| Appearance | Pink to brown to purple powder |
| Melting point | 200-202 °C |
| XLogP3 | 7.6 |
| H-bond donors / acceptors | 2 / 5 |
| Topological polar surface area | 92.2 Ų |
| HS code | 29349900 |
| InChIKey | NUHCTOLBWMJMLX-UHFFFAOYSA-N |
| SMILES | CC1=C(C=C(C(=C1Br)O)C(C)C)C2(C3=CC=CC=C3S(=O)(=O)O2)C4=C(C(=C(C(=C4)C(C)C)O)Br)C |
| PubChem CID | 6450 |
| Synonyms | 3′,3″-Dibromothymolsulfonphthalein, BTB, Bromothymol blue, Dibromothymolsulfophthalein, Dibromothymolsulfonphthalein, Thymol, 6,6'-(3H-2,1-benzoxathiol-3-ylidene)bis(2-bromo-, S,S-dioxide, Blue, Bromthymol, Blue, Bromothymol, Thymol, 6,6'-(3H-2,1-benzoxathiol-3-ylidene)bis[2-bromo-, S,S-dioxide, 3,3'-Dibromothymolsulfonphthalein, Bromothymol blue (sodium salt), 3',3''-Dibromothymolsulfonphthalein |
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
- H302Harmful if swallowed
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements P264, P264 + P265, P270, P280, P301 + P317, P302 + P352, P305 + P351 + P338, P321, P330, P332 + P317, P337 + P317, P362 + P364, 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 | |
| 100 g | Quoted on request | |
| 500 g | Quoted on request | |
| 5 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 Bromo thymol blue
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Other grades with CAS 76-59-5
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