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861251 Sigma-Aldrich

Neutral Red

certified by the Biological Stain Commission

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

  • CAS Number 553-24-2

  • Empirical Formula (Hill Notation) C15H17ClN4

  • Molecular Weight 288.78

  •  Colour Index Number 50040

  •  Beilstein/REAXYS Number 3918740

  •  EC Number 209-035-8

  •  MDL number MFCD00012651

  •  PubChem Substance ID 24888533

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Properties

Related Categories Analytical Reagents, Analytical/Chromatography, Cell Biology, Certified Stains & Dyes, Hematology and Histology,
grade   certified by the Biological Stain Commission
InChI Key   PGSADBUBUOPOJS-UHFFFAOYSA-N
composition   Dye content, 50-60%
pH range   6.8 - 8.0, red to yellow
mp   290 °C (dec.) (lit.)
absorption   λmax 540 nm

Description

Packaging

25 g in glass bottle

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.

Safety & Documentation

Safety Information

RIDADR 
NONH for all modes of transport
WGK Germany 
3
RTECS 
SG1400000

Documents

Certificate of Analysis

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Certificate of Origin

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Titrette from Brand

Milli-Q® Water Purification Solutions
Protocols & Articles
Peer-Reviewed Papers
15

References

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