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: Cl.N=1C2=CC=C(C=C2N=C3C=C(N)C(=CC13)C)N(C)C

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)
• C.I. 50040

Neutral Red, ACS

CAS: 553-24-2

Neutral Red is most commonly used for histological stain for lysosymes but has also been …

• Formula: C₁₅H₁₇ClN₄
• Color and Shape: Dark green to black, Powder
• Molecular weight: 288.78

Neutral Red

CAS: 553-24-2

Nuclear counterstain useful in pH range 6.8 - 8.0 This Thermo Scientific Chemicals brand product …

• Formula: C₁₅H₁₇ClN₄
• Color and Shape: Very dark green, Powder
• Molecular weight: 288.78

Neutral red

CAS: 553-24-2

• Purity: 99.15%
• Molecular weight: 288.77g/mol

Neutral Red (C.I. 50040); certified

CAS: 553-24-2

• Formula: C₁₅H₁₇ClN₄
• Molecular weight: 288.78

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

CAS: 553-24-2

• Formula: C₁₅H₁₇ClN₄
• Color and Shape: Green, brown or black powder
• Molecular weight: 288.78

Neutral Red, pure, high purity biological stain

CAS: 553-24-2

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₁₅H₁₇ClN₄
• Color and Shape: Powder
• Molecular weight: 288.78

Neutral Red

CAS: 553-24-2

This Thermo Scientific Chemicals brand product was originally part of the Acros Organics product portfolio. …

• Formula: C₁₅H₁₇ClN₄
• Color and Shape: Dark green, Crystalline powder
• Molecular weight: 288.78

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

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

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

Neutral Red

CAS: 553-24-2

• Formula: C₁₅H₁₆N₄·ClH
• Purity: By hplc: 98.01% (Typical Value in Batch COA)
• Color and Shape: green solid
• Molecular weight: 288.78g/mol

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

CAS: 553-24-2

• Purity: 90.0%
• Color and Shape: Solid
• Molecular weight: 288.7799987792969

Neutral Red

CAS: 553-24-2

Transition of pH Indicator: pH 6.8 - 8.0, red to yellow. Neutral red is a …

• Formula: C₁₅H₁₇ClN₄
• Molecular weight: 288.78 g/mol

Neutral red

CAS: 553-24-2

Transition of pH Indicator: pH 6.8 - 8.0, red to yellow. Neutral red is a …

• Formula: C₁₅H₁₆N₄·HCl
• Purity: Min. 90%
• Color and Shape: Powder
• Molecular weight: 288.78 g/mol

Neutral Red

CAS: 553-24-2

Transition of pH Indicator: pH 6.8 - 8.0, red to yellow. Neutral red is a …

• Formula: C₁₅H₁₇ClN₄
• Molecular weight: 288.78 g/mol

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

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

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

Neutral Red (Technical Grade)

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: 252.31+(36.46)