CAS 553-24-2

Neutral Red

Description:

Neutral Red is a synthetic dye and a pH indicator, commonly used in biological and chemical applications. It is characterized by its ability to change color in response to pH variations, typically transitioning from red in acidic conditions to yellow in neutral to alkaline environments. The compound is soluble in water and exhibits a maximum absorption wavelength in the visible spectrum, making it useful for staining cells in microscopy and histology. Neutral Red is often employed in cell viability assays, as it can penetrate living cells and accumulate in lysosomes, allowing researchers to assess cell health and proliferation. Additionally, it has applications in microbiology for differentiating between viable and non-viable cells. The substance is generally considered safe for laboratory use, although appropriate safety measures should be taken to avoid exposure. Its chemical structure includes a phenolic group, contributing to its staining properties and interaction with biological tissues. Overall, Neutral Red is a versatile tool in both research and educational settings.

Formula: C₁₅H₁₆N₄·ClH

InChI: InChI=1S/C15H16N4.ClH/c1-9-6-13-15(8-11(9)16)18-14-7-10(19(2)3)4-5-12(14)17-13;/h4-8H,16H2,1-3H3;1H

InChI key: InChIKey=PGSADBUBUOPOJS-UHFFFAOYSA-N

SMILES: N(C)(C)C1=CC2=C(N=C3C(=N2)C=C(N)C(C)=C3)C=C1.Cl

Synonyms:

• (8-amino-7-methyl-10H-phenazin-2-ylidene)-dimethyl-ammonium chloride
• 2,8-Phenazinediamine, N8,N8,3-trimethyl-, hydrochloride (1:1)
• 2,8-Phenazinediamine, N8,N8,3-trimethyl-, monohydrochloride
• 2,8-Phenazinediamine, N⁸,N⁸,3-trimethyl-, hydrochloride (1:1)
• 2,8-Phenazinediamine, N⁸,N⁸,3-trimethyl-, monohydrochloride
• 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride
• Basic Red 5
• C.I Basic Red 5
• N8,N8,3-Trimethyl-2,8-phenazindiaminmonohydrochlorid
• N8,N8,3-Trimethyl-2,8-phenazinediamine, monochlorhydrate
• N8,N8,3-trimethyl-2,8-phenazinediamine monohydrochloride
• N8,N8,3-trimetil-2,8-fenazinadiamina, monoclorhidrato
• Neutral Red W
• Nuclear Fast Red (basic dye)
• N~8~,N~8~,3-trimethylphenazine-2,8-diamine hydrochloride (1:1)
• Toluylene red
• C.I. Basic Red 5, monohydrochloride
• C.I. Basic Red 5, monohydrochloride
• C.I. Basic Red 5, monohydrochloride (VAN)

Basic Red 5

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Color and Shape: Dark green to Dark blue to Black powder to crystal

Molecular weight: 288.78

Ref: 3B-N0315

Neutral Red

CAS: 553-24-2

Nuclear counterstain useful in pH range 6.8 to 8.0

Formula: C₁₅H₁₇ClN₄

Color and Shape: Very dark green, Powder

Molecular weight: 288.78

Ref: 02-J63054

Neutral Red, ACS

CAS: 553-24-2

Nuclear counterstain useful in pH range 6.8 to 8.0

Formula: C₁₅H₁₇ClN₄

Color and Shape: Dark green to black, Powder

Molecular weight: 288.78

Ref: 02-J62643

Neutral Red (C.I. 50040); certified

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Color and Shape: Dark green to black powder or crystals

Molecular weight: 288.78

Ref: 7W-GT2110

Neutral red

CAS: 553-24-2

Neutral red

Purity: ≥98%

Molecular weight: 288.77g/mol

Ref: 54-BUP18189

Neutral Red

CAS: 553-24-2

Neutral Red

Formula: C₁₅H₁₆N₄·ClH

Purity: Ind (Typical Value in Batch COA)

Color and Shape: green solid

Molecular weight: 288.78g/mol

Ref: 54-BIB6123

Neutral Red (C.I. 50040); 50%

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Color and Shape: Brown to black or green powder

Molecular weight: 288.78

Ref: 7W-GT0890

Neutral red

CAS: 553-24-2

Neutral red is a vital dye, is used as an indicator and biological stain.

Formula: C₁₅H₁₇ClN₄

Purity: 99.15%

Color and Shape: Dark Green Powder

Molecular weight: 288.77

Ref: TM-T20549

Neutral Red (C.I. 50040); 90%

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Color and Shape: Green, brown or black powder

Molecular weight: 288.78

Ref: 7W-GT1293

Neutral Red

CAS: 553-24-2

Transition of pH Indicator: pH 6.8 - 8.0, red to yellow. Neutral red is a dye used in histology for staining nuclei. Neutral red is also a pH indicator. As such it is used in microbial culture media for differentation of bacteria. For example MacConkey agar contains Neutral red and lactose. Acidification by lactic acid turns on the Neutral red. Therefore, colonies formed by bacteria that ferment lactose into lactic acid will turn red and stand out from the pale colonies of non-lactose-fermenting bacteria. Neutral red is also used in cell viability tests based on the ability to incorporate and bind Neutral red.

Formula: C₁₅H₁₇ClN₄

Molecular weight: 288.78 g/mol

Ref: 3D-N-2525

Neutral red

CAS: 553-24-2

Transition of pH Indicator: pH 6.8 - 8.0, red to yellow. Neutral red is a dye used in histology for staining nuclei. Neutral red is also a pH indicator. As such it is used in microbial culture media for differentation of bacteria. For example MacConkey agar contains Neutral red and lactose. Acidification by lactic acid turns on the Neutral red. Therefore, colonies formed by bacteria that ferment lactose into lactic acid will turn red and stand out from the pale colonies of non-lactose-fermenting bacteria. Neutral red is also used in cell viability tests based on the ability to incorporate and bind Neutral red.

Formula: C₁₅H₁₆N₄·HCl

Purity: Min. 90%

Color and Shape: Powder

Molecular weight: 288.78 g/mol

Ref: 3D-FN47159

Neutral Red IND

CAS: 553-24-2

Purity: IND

Molecular weight: 288.11

Ref: 10-F996922

Neutral Red extrapure AR, 60%

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Purity: 60 %

Color and Shape: Black to brown to dark green, Powder, Clear

Molecular weight: 288.78

Ref: SR-90691

Neutral Red (High Purity), 85%

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Purity: 85%

Color and Shape: Black to brown to dark green, Powder, Clear

Molecular weight: 288.78

Ref: SR-36248

Neutral Red (High Purity) ACS, ExiPlus, Multi-Compendial, 85%

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Purity: min. 85%

Color and Shape: Dark green to brown to black, Powder

Molecular weight: 288.78

Ref: SR-18559

N2,N2,7-Trimethylphenazine-2,8-diamine hydrochloride

CAS: 553-24-2

Formula: C₁₅H₁₇ClN₄

Purity: 90.0%

Color and Shape: Solid

Molecular weight: 288.78

Ref: 10-F319858

Neutral Red (Technical Grade)

Controlled Product

CAS: 553-24-2

Applications Neutral Red is a common histology stain used to determine cell viability.Dyes and metabolites.

Formula: C₁₅H₁₆N₄·HCl

Color and Shape: Neat

Molecular weight: 288.77

Ref: TR-N391013

Neutral Red

CAS: 553-24-2

Transition of pH Indicator: pH 6.8 - 8.0, red to yellow. Neutral red is a dye used in histology for staining nuclei. Neutral red is also a pH indicator. As such it is used in microbial culture media for differentation of bacteria. For example MacConkey agar contains Neutral red and lactose. Acidification by lactic acid turns on the Neutral red. Therefore, colonies formed by bacteria that ferment lactose into lactic acid will turn red and stand out from the pale colonies of non-lactose-fermenting bacteria. Neutral red is also used in cell viability tests based on the ability to incorporate and bind Neutral red.

Formula: C₁₅H₁₇ClN₄

Molecular weight: 288.78 g/mol

Ref: 3D-N-2527