Basic Red 2 Chemical Properties

Melting point:

>240℃ (decompose)

Boiling point:

507.14°C (rough estimate)

Density 

1.00 g/mL at 20 °C

refractive index 

n20/D 1.339

Flash point:

46 °C

storage temp. 

Keep in dark place,Inert atmosphere,Room temperature

solubility 

H2O: soluble1mg/mL

form 

Solid

pka

6.4(at 25℃)

Colour Index 

50240

color 

S. No.: 967

PH

10 (10g/l, H2O, 20℃)

Water Solubility 

soluble

λmax

530 nm

BRN 

3924099

Stability:

Stable.

Biological Applications

Hematotoxicity assays; measuring membrane potential; detecting microorganisms; treating diabetes-associated pain,mechanical allodynia,oncological diseases; food packaging materials

EPA Substance Registry System

3,7-Diamino-2,8-dimethyl-5-phenylphenazinium chloride (477-73-6)

Safety Information

Hazard Codes 

Xi

Risk Statements 

41-36/38-37/38-10-36/37/38

Safety Statements 

26-39-24/25-36-16

RIDADR 

UN 1170 3/PG 3

WGK Germany 

3

RTECS 

SG1623000

TSCA 

Yes

HS Code 

32041300

Hazardous Substances Data

477-73-6(Hazardous Substances Data)

MSDS

• Language:English Provider:Basic Red 2
• Language:English Provider:ACROS
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Basic Red 2 Usage And Synthesis

Chemical Properties

Dark red to violet powder

Uses

A biological stain used to stain Gram negative bacteria, chromosomes, mucin, cartilage and mast cells. Dyes and metabolites, Environmental Testing

Uses

In forensics to visualize details of cyanoacrylate-fumed friction ridges of human digits.

Definition

A red dye that flu- oresces when exposed to selected wavelengths of light.

Application

Basic Red 2 is disclosed as colored charge-controlling agent in toners for electrophotography and as photosensitizer in solar cells. Safranine dyes are also suitable for use in photoelectric processes. Further more,they can be used as desensitizers indirect positive printing-out emulsions, for photopolymerization using visible light,a slight filters with variable optical density, and as dye components in soluble complex-forming molecules used in affinity-specific separation of nucleic acids.

Preparation

commonly known as Safranine T. Such molecular ratio of 2-Methylbenzene-1 ,4-diamine, and O-Methylaniline oxidation, the resulting condensation product of aniline and purified by precipitation segmented dye, and then converted to the chloride.

Properties and Applications

bright blue light pink. Soluble in water for red, soluble in ethanol with yellow red fluorescent red. The strong sulfuric acid for green, diluted by blue to become red. The dye solution to join sodium hydroxide produce light brown red precipitate; Join the hydrochloric acid into blue purple. Used for paper making industry and color up manufacturing. Also used in acrylic, linen, silk products dyeing.

Purification Methods

Crystallise it from *benzene/MeOH (1:1) or water. Dry it in vacuo over H2SO4. It has UV: at 520nm (H2O) and 530nm (EtOH). [Beilstein 25 H 403, 25 I 657, 25 III/IV

Basic Red 2(477-73-6)Related Product Information

• Dimethyl phthalate
• Dimethyl carbonate
• SAFFLOWER YELLOW
• Dimethyl ether
• Dimethyl sulfate
• Dimethyl sulfoxide
• Poly(dimethylsiloxane)
• Cupric carbonate basic
• N,N-Dimethyl-1,4-phenylenediamine
• 4,4'-(4-iminocyclohexa-2,5-dienylidenemethylene)dianiline hydrochloride C.I. Basic Red 9
• Dimethyl fumarate
• Dacthal
• Xylene
• Alkaline Phosphatase
• ETHANE
• Chlorodimethylphenylsilane
• N,N-Dimethylformamide
• BASIC RED,Basic red 1:1 (C.I. 45161)