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ChemicalBook > Product Catalog >Analytical Chemistry >Standard >Pharmaceutical Impurity Reference Standards >4,5-Dibromo-1,2-benzenediol

4,5-Dibromo-1,2-benzenediol

4,5-Dibromo-1,2-benzenediol Structure
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
Molecular Weight:
267.9
MOL File:
2563-26-0.mol
Modify Date:
2022/11/11 11:01:00
Request For Quotation

4,5-Dibromo-1,2-benzenediol Properties

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)

SAFETY

Risk and Safety Statements

Symbol(GHS) 
GHS07
Signal word  Warning
Hazard statements  H315-H319-H335
Precautionary statements  P261-P264-P271-P280-P302+P352-P305+P351+P338
Hazard Codes  Xi
Risk Statements  36/37/38
Safety Statements  26-36
WGK Germany  3

4,5-Dibromo-1,2-benzenediol price More Price(1)

Manufacturer Product number Product description CAS number Packaging Price Updated Buy
Sigma-Aldrich(India) 550248 4,5-Dibromobenzene-1,2-diol 90%, technical grade 2563-26-0 5G ₹16060 2022-06-14 Buy
Product number Packaging Price Buy
550248 5G ₹16060 Buy

4,5-Dibromo-1,2-benzenediol Chemical Properties,Uses,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%).
Synthesis_2563-26-0

4,5-Dibromo-1,2-benzenediol Preparation Products And Raw materials

Raw materials

Preparation Products

4,5-dibromo-2-methoxyphenol 1,2-BENZENEDICARBONITRILE, 4,5-BIS(PHENYLMETHOXY)- 1 2-DIBROMO-4 5-BIS(OCTYLOXY)BENZENE 9&

4,5-Dibromo-1,2-benzenediol Suppliers

Global( 56)Suppliers
Supplier Tel Country ProdList Advantage Inquiry
Speranza Chemical Co., Ltd. +86-86-075521030354 +8618688942810 China 723 55 Inquiry
Zhengzhou Alfa Chemical Co.,Ltd +8618530059196 China 12962 58 Inquiry
Kindchem(Nanjing)Co.,Ltd +86-025-025-85281586 +8618651653755 China 1227 58 Inquiry
Hefei TNJ Chemical Industry Co.,Ltd. 0551-65418671 China 34571 58 Inquiry
Dayang Chem (Hangzhou) Co.,Ltd. 571-88938639 +8617705817739 China 52861 58 Inquiry
PT CHEM GROUP LIMITED +86-85511178 +86-85511178 China 35451 58 Inquiry
GIHI CHEMICALS CO.,LIMITED +8618058761490 China 49999 58 Inquiry
Aladdin Scientific +1-+1(833)-552-7181 United States 57511 58 Inquiry
Shanghai Aladdin Biochemical Technology Co.,Ltd. +86-18521732826 China 48467 58 Inquiry
SuZhou Nahsor PharmTec Co.，Ltd 13482028355 China 79 58 Inquiry
Supplier Advantage
Speranza Chemical Co., Ltd. 55
Zhengzhou Alfa Chemical Co.,Ltd 58
Kindchem(Nanjing)Co.,Ltd 58
Hefei TNJ Chemical Industry Co.,Ltd. 58
Dayang Chem (Hangzhou) Co.,Ltd. 58
PT CHEM GROUP LIMITED 58
GIHI CHEMICALS CO.,LIMITED 58
Aladdin Scientific 58
Shanghai Aladdin Biochemical Technology Co.,Ltd. 58
SuZhou Nahsor PharmTec Co.，Ltd 58

4,5-Dibromo-1,2-benzenediol Spectrum

4,5-Dibromo-1,2-benzenediol(2563-26-0)IR

2563-26-0(4,5-Dibromo-1,2-benzenediol )Related Search:

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4,5-dibromopyrocatechol 550248_SIAL Benzen-1,2-diol, 4,5-dibromo- NSC10858 ZINC00254871 4 5-DIBROMOBENZENE-1 2-DIOL 90% TECH 4,5-DIBROMOBENZENE-1,2-DIOL, 90% tech grade 4,5-Dibromo-1,2-Benzenediol 1,2-BENZENEDIOL,4,5-DIBROMO- 4,5-Dibromobenzene-1,2-diol 90%, technical grade Pinaverium Bromide Impurity 8 4,5-Dibromocatechol 2563-26-0 C6H4O2Br2