4,5-Dibromo-1,2-benzenediol
- Product Name
- 4,5-Dibromo-1,2-benzenediol
- CAS No.
- 2563-26-0
- Chemical Name
- 4,5-Dibromo-1,2-benzenediol
- Synonyms
- NSC10858;550248_SIAL;ZINC00254871;4,5-Dibromocatechol;4,5-dibromopyrocatechol;4,5-Dibromo-1,2-Benzenediol;1,2-BENZENEDIOL,4,5-DIBROMO-;Pinaverium Bromide Impurity 8;Benzen-1,2-diol, 4,5-dibromo-;4 5-DIBROMOBENZENE-1 2-DIOL 90% TECH
- CBNumber
- CB6499765
- Molecular Formula
- C6H4Br2O2
- Formula Weight
- 267.9
- MOL File
- 2563-26-0.mol
4,5-Dibromo-1,2-benzenediol Property
- Melting point:
- 111-116°C (lit.)
- Boiling point:
- 328.5±37.0 °C(Predicted)
- Density
- 2.257±0.06 g/cm3(Predicted)
- storage temp.
- Sealed in dry,Room Temperature
- pka
- 7.98±0.23(Predicted)
Hazard and Precautionary Statements (GHS)
- Symbol(GHS)
-
- Signal word
- Warning
- Hazard statements
-
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
- Precautionary statements
-
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash hands thoroughly after handling.
P264Wash skin thouroughly after handling.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
N-Bromosuccinimide Price
- Product number
- 550248
- Product name
- 4,5-Dibromobenzene-1,2-diol
- Purity
- 90%, technical grade
- Packaging
- 5g
- Price
- $217
- Updated
- 2024/03/01
- Product number
- D437350
- Product name
- 4,5-Dibromobenzene-1,2-diol(90%,technicalgrade)
- Packaging
- 500mg
- Price
- $90
- Updated
- 2021/12/16
- Product number
- D437350
- Product name
- 4,5-Dibromobenzene-1,2-diol(90%,technicalgrade)
- Packaging
- 1g
- Price
- $145
- Updated
- 2021/12/16
- Product number
- 41851
- Product name
- 4,5-Dibromobenzene-1,2-diol,suitableforHematology&Histology,≥88%(GC),Technicalgrade
- Purity
- ≥88%(GC)
- Packaging
- 5G
- Price
- $182.87
- Updated
- 2021/12/16
- Product number
- 078259
- Product name
- 4,5-Dibromobenzene-1,2-diol
- Packaging
- 1g
- Price
- $142
- Updated
- 2021/12/16
4,5-Dibromo-1,2-benzenediol Chemical Properties,Usage,Production
Uses
4,?5-?Dibromobenzene-?1,?2-?diol is a dye. Dyes and metabolites.
Synthesis
4,5-Dibromo-1,2-benzenediol is obtained by reacting catechol with Bromine in CCl4.
Experimental procedure￡oIn a 500mL three neck round bottom flask under nitrogen, equipped with a refluxcondenser, an addition funnel and a gas outlet connected to a bubbler filled with a 10%NaOH aqueous solution, was suspended catechol (136 mmol, 15.0 g, 1 eq.) in CCl4 (150mL). Bromine (272 mmol, 43.5 g, 2 eq.) diluted in CCla(20mL) was added dropwise at 0?? over 4.5 h. The excess of bromine was neutralized with aqueous NaHSO4 (150mL,40% solution). The mixture was filtrated and the solids were dissolved in CCLa,washed with water and dried in vacuum. The obtained 4,5-dibromocatechol (30.2 g)was then recrystallized from CHCl3 (220 mL) to afford a white crystalline solid (22.5 g,62%).
4,5-Dibromo-1,2-benzenediol Preparation Products And Raw materials
Raw materials
Preparation Products
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