Bromophenol Blue
- CAS No.
- 115-39-9
- Chemical Name:
- Bromophenol Blue
- Synonyms
- BPB;BROMPHENOL BLUE;BROMOPHENOL BLUE INDICATOR;ALBUTEST;NSC 7818;Aalbutest;Bromophnol blue;Bromophemol blue;BROMOPHENOL BLUE;bleudebromophenol
- CBNumber:
- CB3492457
- Molecular Formula:
- C19H10Br4O5S
- Molecular Weight:
- 669.96
- MOL File:
- 115-39-9.mol
- Modify Date:
- 2024/8/14 18:30:21
| Melting point | 273 °C |
|---|---|
| Density | 0.954 g/mL at 20 °C |
| Flash point | 58 °C |
| storage temp. | Store at RT. |
| solubility | methanol: soluble10mg/mL |
| form | Solid |
| pka | 3.85(at 25℃) |
| Boiling point | 605.6±55.0 °C(Predicted) |
| color | Reddish-violet |
| PH Range | 3(Yellow)-4.6(Blue) 6(yellow)-7.6(blue) |
| PH | pH : 3.0～4.6 |
| Odor | Odorless |
| Water Solubility | Freely soluble in NaOH. Soluble in sodium hydroxide, alcohol, benzene, and acetic acid. Slightly soluble in water. |
| λmax | 598nm, 592nm, 436nm, 422nm, 273nm |
| Merck | 14,1444 |
| BRN | 61698 |
| Stability | Stable. Incompatible with strong oxidizing agents. |
| Major Application | Nanotechnology, semiconductors, sol-gel matrix, fuel cells, display device, paints, packaging system, diapers, contact lens, determining nucleic acids, in saliva, water alkalinity, preserving genetic materials, detecting bacteria, vaginal infection test method |
| InChIKey | UDSAIICHUKSCKT-UHFFFAOYSA-N |
| LogP | 6.880 (est) |
| CAS DataBase Reference | 115-39-9(CAS DataBase Reference) |
| EPA Substance Registry System | Bromophenol blue (115-39-9) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |    GHS02,GHS07,GHS08 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Danger | |||||||||
| Hazard statements | H226-H319-H335+H336-H340-H360-H372-H373 | |||||||||
| Precautionary statements | P201-P202-P210-P233-P240-P241+P242+P243-P260-P264-P270-P271-P280-P303+P361+P353-P304+P340+P312-P305+P351+P338+P337+P313-P308+P313-P403+P233-P405-P501 | |||||||||
| Hazard Codes | T,Xn | |||||||||
| Risk Statements | 61-20/21-36-36/37/38-20/21/22 | |||||||||
| Safety Statements | 53-45-24/25-22-36-26 | |||||||||
| RIDADR | UN 2265 3/PG 3 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | SJ7453000 | |||||||||
| TSCA | Yes | |||||||||
| HazardClass | 3 | |||||||||
| PackingGroup | III | |||||||||
| HS Code | 29349990 | |||||||||
| NFPA 704 |
|
Bromophenol Blue price More Price(15)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich(India) | 114391 | Bromophenol Blue ACS reagent | 115-39-9 | 5G | ₹2879.45 | 2022-06-14 | Buy |
| Sigma-Aldrich | B0126 | Bromophenol Blue | 115-39-9 | 25G | ₹8995.58 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | B0126 | Bromophenol Blue | 115-39-9 | 25G | ₹8995.58 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 114391 | Bromophenol Blue ACS reagent | 115-39-9 | 25G | ₹3052.65 | 2022-06-14 | Buy |
| Sigma-Aldrich(India) | 1.08122 | Bromophenol blue indicator ACS,Reag. Ph Eur | 115-39-9 | 5G | ₹7899.99 | 2022-06-14 | Buy |
Bromophenol Blue Chemical Properties,Uses,Production
Chemical Properties
Bromophenol Blue is pink or red powder, soluble in ethanol, benzene, ether and other organic solvents, slightly soluble in water, the aqueous solution is yellow, and blue-purple in alkaline solution. It is mainly used as an acid-base indicator, the pH discoloration range is 3.0 to 4.6, and the color changes from yellow to green to blue-violet.
Definition
ChEBI: Bromophenol blue is 3H-2,1-Benzoxathiole 1,1-dioxide in which both of the hydrogens at position 3 have been substituted by 3,5-dibromo-4-hydroxyphenyl groups. It is used as a laboratory indicator, changing from yellow below pH 3 to purple at pH 4.6, and as a size marker for monitoring the progress of agarose gel and polyacrylamide gel electrophoresis. It has also been used as an industrial dye. It has a role as a two-colour indicator, an acid-base indicator and a dye. It is a sultone, an arenesulfonate ester, a 2,1-benzoxathiole, a member of phenols and an organobromine compound.
Preparation
Bromophenol Blue is prepared by slow addition of excess bromine to a hot solution of phenolsulfonphthalein in glacial acetic acid.
Synthesis steps: Dissolve phenol red in glacial acetic acid, add a solution of bromine in glacial acetic acid with stirring, pour into 60°C hot water after stirring for a few minutes, cool to room temperature, and place overnight. Filter, wash the filter cake with glacial acetic acid and benzene in turn, and air dry to obtain bromophenol blue.
Purification Methods
Crystallise the dye from *C6H6 or Me2CO/AcOH, and dry it in air. It is an indicator: at pH 3.0 it is yellow and it is purple at pH 4.6. [Beilstein 19/3 V 458.]
Bromophenol Blue Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Arnish Laborates Pvt Ltd | +91 7208475595 | Maharashtra, India | 187 | 58 | Inquiry |
| ADVENT CHEMBIO PRIVATE LIMITED | +91-9821524116 +91-9821524116 | Mumbai, India | 353 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| Esjay Chemicals | +919820452929 | Maharashtra, India | 110 | 58 | Inquiry |
| GSP Dyes and Chemicals Pvt.Ltd | +91-22-28144802 +91-2228144802 | Maharashtra, India | 79 | 58 | Inquiry |
| Anubhav Business Corporation | +91-2228014519 +91-2228014999 | Maharashtra, India | 119 | 58 | Inquiry |
| Garuda Chemicals | +91-8097853976 +91-8097853975 | Maharashtra, India | 58 | 58 | Inquiry |
| RYZE CHEMIE | +91-9702966440 +91-9702966440 | Maharashtra, India | 335 | 58 | Inquiry |
| Apex Chemicals | +91 22 66313162 | Mumbai, India | 37 | 58 | Inquiry |
| Oster Chemical & Pharmaceutical Works Pvt. Ltd. | 91-33-23508577 | Kolkata, India | 101 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| Arnish Laborates Pvt Ltd | 58 |
| ADVENT CHEMBIO PRIVATE LIMITED | 58 |
| JSK Chemicals | 58 |
| Esjay Chemicals | 58 |
| GSP Dyes and Chemicals Pvt.Ltd | 58 |
| Anubhav Business Corporation | 58 |
| Garuda Chemicals | 58 |
| RYZE CHEMIE | 58 |
| Apex Chemicals | 58 |
| Oster Chemical & Pharmaceutical Works Pvt. Ltd. | 58 |