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2,6-Dichloroindophenol sodium salt

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2,6-Dichloroindophenol sodium salt Basic information

Product Name:
2,6-Dichloroindophenol sodium salt
CAS:
620-45-1
MF:
C12H6Cl2NNaO2
MW:
290.08
EINECS:
210-640-4
Mol File:
620-45-1.mol
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2,6-Dichloroindophenol sodium salt Chemical Properties

Melting point:
>300°C
vapor density 
11.2 (vs air)
storage temp. 
Store at room temperature.
form 
Powder/Solid
color 
Dark green
Odor
Odorless
Water Solubility 
Soluble in water.
Sensitive 
Light Sensitive
Merck 
14,3068
BRN 
3641229
Stability:
Stable. Incompatible with strong oxidizing agents, strong reducing agents. Air and moisture sensitive. Hygroscopic.
CAS DataBase Reference
620-45-1(CAS DataBase Reference)
EPA Substance Registry System
2,5-Cyclohexadien-1-one, 2,6-dichloro-4-[(4-hydroxyphenyl)imino]-, sodium salt (620-45-1)
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Safety Information

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
22-24/25-36-26
WGK Germany 
3
RTECS 
GU5495000
8
TSCA 
Yes
HS Code 
29252000

MSDS

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2,6-Dichloroindophenol sodium salt Usage And Synthesis

Chemical Properties

dark green powder

Uses

A redox indicator dye.

Purification Methods

Dissolve it in 0.001M phosphate buffer, pH 7.5 (alternatively, about 2g of the dye is dissolved in 80mL of M HCl), and extracted into diethyl ether. The extract is washed with water, extracted with aqueous 2% NaHCO3, and the sodium salt of the dye is precipitated by adding NaCl (30g/100mL of NaHCO3 solution), then filtered off, washed with dilute NaCl solution and dried. It has max at 605nm. [Hiromi et al. Anal Biochem 101 421 1980.] The acetate M 310.1 has m 101-103o (from Et2O/pet ether) and 99.5-100.5o (from Et2O). [Beilstein 13 IV 1078-1079.]

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