ChemicalBook > CAS DataBase List > 4',5'-DIBROMOFLUORESCEIN

4',5'-DIBROMOFLUORESCEIN

Product Name
4',5'-DIBROMOFLUORESCEIN
CAS No.
596-03-2
Chemical Name
4',5'-DIBROMOFLUORESCEIN
Synonyms
EOSIN2J;CI 45370;ORANGE 5;DAIDAI201;C.I.45370A;CI 45370.1;CI 45370:1;CCRIS 4900;eosinicacid;CI NO 45370
CBNumber
CB0321934
Molecular Formula
C20H10Br2O5
Formula Weight
490.1
MOL File
596-03-2.mol
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4',5'-DIBROMOFLUORESCEIN Property

Melting point:
270-273 °C(lit.)
Boiling point:
633.7±55.0 °C(Predicted)
Density 
1.6743 (rough estimate)
vapor pressure 
0Pa at 25℃
refractive index 
1.5010 (estimate)
storage temp. 
Sealed in dry,Room Temperature
form 
powder to crystal
pka
8.14±0.20(Predicted)
Colour Index 
45370
color 
Light yellow to Brown
Water Solubility 
153.49μg/L at 25℃
Merck 
14,3022
BRN 
57189
CAS DataBase Reference
596-03-2(CAS DataBase Reference)
EPA Substance Registry System
Spiro[isobenzofuran-1(3H),9'-[9H]xanthen]-3-one, 4',5'-dibromo-3',6'-dihydroxy- (596-03-2)
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Safety

Hazard Codes 
Xi,T
Risk Statements 
36-25-36/37/38
Safety Statements 
22-24/25-45-36-26
RIDADR 
UN 2811 6.1/PG 3
WGK Germany 
3
RTECS 
LM5200000
TSCA 
Yes
HS Code 
32129000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H301Toxic if swalloed

Precautionary statements

P301+P310IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
216720
Product name
4′,5′-Dibromofluorescein
Purity
Dye content 95%
Packaging
5g
Price
$46.3
Updated
2024/03/01
TCI Chemical
Product number
D1120
Product name
Dibromofluorescein (contains Mono-, Tri- and Tetra-)
Packaging
5g
Price
$16
Updated
2024/03/01
Alfa Aesar
Product number
A18226
Product name
4',5'-Dibromofluorescein, ca. 95% dye content
Packaging
50g
Price
$29.65
Updated
2024/03/01
Alfa Aesar
Product number
A18226
Product name
4',5'-Dibromofluorescein, ca. 95% dye content
Packaging
250g
Price
$83.65
Updated
2024/03/01
TRC
Product number
D425708
Product name
4'',5''-Dibromofluorescein
Packaging
50g
Price
$60
Updated
2021/12/16
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4',5'-DIBROMOFLUORESCEIN Chemical Properties,Usage,Production

Chemical Properties

orange powder

Uses

4'',5''-Dibromofluorescein is a stain with an absorption maximum of 450 nm. Dyes and metabolites, Environmental Testing

Preparation

Fluorescein (C.I. Acid Yellow 73, C.I. 45350) in the sodium hydroxide solution two bromination, and??made into a free acid form.

Safety Profile

Poison by ingestion and intravenous routes. An herbicide. When heated to decomposition it emits highly toxic fumes of NOx, CN-, and Br-. See also NITRILES.

Properties and Applications

brilliant yellow light yellow. Slightly soluble in water for orange, with weak yellow fluorescence, soluble in ethanol for orange, with green yellow fluorescence, soluble in acetone peachblossom, with yellow fluorescence, soluble in Tetrahydrofurfuryl alcohol. In concentrated sulfuric acid to red light yellow, dilution after yellow brown, with orange precipitation. Dye aqueous solution to join sodium hydroxide as red edge; In the glycerol and liquid paraffin in good dispersibility. Used in medicines and cosmetics coloring.

Purification Methods

Crystallise it from aqueous 30% EtOH. [Beilstein 19/6 V 462.]

4',5'-DIBROMOFLUORESCEIN Preparation Products And Raw materials

Raw materials

Preparation Products

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4',5'-DIBROMOFLUORESCEIN Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Meryer (Shanghai) Chemical Technology Co., Ltd.
Tel
4006608290; 18621169109
Fax
86-21-61259102
Email
market03@meryer.com
Country
China
ProdList
40241
Advantage
62
3B Pharmachem (Wuhan) International Co.,Ltd.
Tel
821-50328103-801 18930552037
Fax
86-21-50328109
Email
3bsc@sina.com
Country
China
ProdList
15848
Advantage
69
Alfa Aesar
Tel
400-6106006
Fax
021-67582001/03/05
Email
saleschina@alfa-asia.com
Country
China
ProdList
30132
Advantage
84
TCI (Shanghai) Development Co., Ltd.
Tel
021-67121386
Fax
021-67121385
Email
Sales-CN@TCIchemicals.com
Country
China
ProdList
24539
Advantage
81
Energy Chemical
Tel
021-021-58432009 400-005-6266
Fax
021-58436166
Email
sales8178@energy-chemical.com
Country
China
ProdList
44751
Advantage
61
Shandong Xiya Chemical Co., Ltd
Tel
4009903999 13355009207
Fax
0539-6365991
Email
3007715519@qq.com
Country
China
ProdList
18736
Advantage
57
Tianjin heowns Biochemical Technology Co., Ltd.
Tel
400 638 7771
Email
sales@heowns.com
Country
China
ProdList
14443
Advantage
57
Sinopharm Chemical Reagent Co,Ltd.
Tel
86-21-63210123
Fax
86-21-63290778 86-21-63218885
Email
sj_scrc@sinopharm.com
Country
China
ProdList
9823
Advantage
79
Spectrum Chemical Manufacturing Corp.
Tel
021-021-021-67601398-809-809-809 15221380277
Fax
021-57711696
Email
marketing_china@spectrumchemical.com
Country
China
ProdList
9664
Advantage
60
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View Lastest Price from 4',5'-DIBROMOFLUORESCEIN manufacturers

Hebei Mojin Biotechnology Co., Ltd
Product
4',5'-DIBROMOFLUORESCEIN 596-03-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
50000KG/month
Release date
2023-10-16
Hebei Guanlang Biotechnology Co., Ltd.
Product
4',5'-DIBROMOFLUORESCEIN 596-03-2
Price
US $0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2023-03-21
Zhuozhou Wenxi import and Export Co., Ltd
Product
4",5"-DIBROMOFLUORESCEIN 596-03-2
Price
US $15.00-10.00/KG
Min. Order
1KG
Purity
99%+ HPLC
Supply Ability
Monthly supply of 1 ton
Release date
2021-08-11

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