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Merck

72210

Neutral Red

suitable for microscopy

Synonym(s):

3-Amino-7-dimethylamino-2-methylphenazine hydrochloride, Basic Red 5, Toluylene red

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About This Item

Empirical Formula (Hill Notation):
C15H17ClN4
CAS Number:
553-24-2
Molecular Weight:
288.78
EC Number:
209-035-8
UNSPSC Code:
12171500
NACRES:
MA.02
PubChem Substance ID:
329763896
MDL number:
MFCD00012651
Colour Index Number:
50040
Beilstein/REAXYS Number:
3918740

Product Name

Neutral Red, suitable for microscopy

InChI key

PGSADBUBUOPOJS-UHFFFAOYSA-N

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

SMILES string

Cl.CN(C)c1ccc2nc3cc(C)c(N)cc3nc2c1

form

powder or crystals

technique(s)

titration: suitable

pH

6.8-8.0, red to yellow

mp

290 °C (dec.) (lit.)

solubility

water: 0.01 g/10 mL

εmax

≥800 at 535-545 nm

suitability

suitable for microscopy

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

Quality Level

100

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Application

Neutral red has been used to stain mouse mammary glands.
Useful as an indicator for preparing neutral red paper, and as a biological stain.

General description

Neutral red is a vital dye widely used as a cellular pH indicator and is selective for shifts in pH. It is highly lipophilic in nature. It favours membrane potential dependent fluorescence that attributes to changes in hydrophobicity.

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN3108
BCCM4796
BCCK5416
BCCH5901
BCCF1209

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John D Landua et al.
Journal of mammary gland biology and neoplasia, 14(4), 411-415 (2009-11-26)
Whole mount preparations of mouse mammary glands are useful for evaluating overall changes in growth and morphology, and are essential for detecting and evaluating focal or regionally-localized phenotypes that would be difficult to detect or analyze using other techniques. We
Sylvie V M Tesson et al.
Frontiers in microbiology, 9, 2681-2681 (2018-11-30)
Microalgae are common members of the atmospheric microbial assemblages. Diverse airborne microorganisms are known to produce ice nucleation active (INA) compounds, which catalyze cloud and rain formation, and thus alter cloud properties and their own deposition patterns. While the role
Kun Guo et al.
Biosensors & bioelectronics, 47, 184-189 (2013-04-13)
This study introduces a novel and simple method to covalently graft neutral red (NR) onto carbon surfaces based on spontaneous reduction of in situ generated NR diazonium salts. Immobilization of neutral red on carbon surface was achieved by immersing carbon
Valerio Matozzo et al.
Marine environmental research, 79, 116-121 (2012-06-26)
The effects of ibuprofen (IBU) on the immune parameters of the clam Ruditapes philippinarum were investigated after a 7-day exposure to sublethal IBU concentrations (0, 0 + ethanol, 100, 500, and 1000 μg/L). Total haemocyte count (THC), haemocyte diameter and
Cássio do Nascimento et al.
Microscopy research and technique, 76(2), 126-132 (2012-10-31)
The aim of this randomized crossover investigation was to assess the biofilm formation on two titanium and one zirconia substrates in relation to the topography and surface roughness of the materials. Twenty-four discs specimens for each evaluated material (Machined pure
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