Skip to Content
Merck
CN
All Photos(2)

Documents

861251

Sigma-Aldrich

Neutral Red

certified by the Biological Stain Commission

Synonym(s):

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

Sign Into View Organizational & Contract Pricing
All Photos(2)

About This Item

Empirical Formula (Hill Notation):
C15H17ClN4
CAS Number:
553-24-2
Molecular Weight:
288.78
Colour Index Number:
50040
Beilstein:
3918740
EC Number:
209-035-8
MDL number:
MFCD00012651
UNSPSC Code:
12171500
PubChem Substance ID:
24888533
NACRES:
NA.47

grade

certified by the Biological Stain Commission

Quality Level

100

form

powder

composition

Dye content, 50-60%

technique(s)

titration: suitable

pH

6.8-8.0, red to yellow

mp

290 °C (dec.) (lit.)

solubility

water: 1 mg/mL

λmax

540 nm

application(s)

diagnostic assay manufacturing
hematology
histology

storage temp.

room temp

SMILES string

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

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

PGSADBUBUOPOJS-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Related Categories

Application

Neutral red has been used as a staining agent for micro- and meso-plankton. It has been used as a staining agent for nematocytes.
Useful as an indicator for preparing neutral red paper, and as a biological stain.

Biochem/physiol Actions

Neutral red is useful as an indicator for preparing neutral red paper, and as a biological stain. Neutral dye has low toxicity and is a vital dye. It can also be used as a pH indicator. It is used for cell viability assay. The dye accumulates in the lysosomes of living healthy cells, but not in damaged cells.

Suitability

Certified for use in the method of Doan & Ralph for the supravital staining of living blood cells.

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
11714LE
11814LE
06601HV
09302CE
07607TD

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Dead or alive? Viability assessment of micro-and mesoplankton.
Zetsche EV and Meysman FJ
Journal of Plankton Research, 34, 493-509 (2012)
Cell Growth, Differentiaton and Senescence (1999)
The Anatomical Record, 27, 241-241 (1924)
PH and Brain Function (1998)
Catostylus tagi: partial rDNA sequencing and characterisation of nematocyte structures using two improvements in jellyfish sample preparation.
Parracho T and Morais Z
Journal of Venomous Animals and Toxins including Tropical Diseases, 21, 40-40 (2015)
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service