NEUTRAL RED

Synonyms. Neutral red; 3-Amino-7-dimethylamino-2-methylphenazine hydrochloride; Aminodimethylaminotoluaminozine hydrochloride; C.I. 50040; C.I. Basic Red 5; C.I. Basic Red 5 monohydrochloride; Cerven neutralni; Cerven toluylenova; Cerven zasadita 5; Kernechtrot; N8,N8,3-Trimethyl-2,8-phenazinediamine monohydrochloride; Neutral Red chloride; Neutral Red W; Nuclear Fast Red; Toluylene Red;

NEUTRAL RED (Base)

 

6.8 ~ 8.0

 

 

 

 

Click for original image

 

PRODUCT IDENTIFICATION

CAS RN

553-24-2

EINECS RN

209-035-8

FORMULA

C15H17ClN4

MOLE WEIGHT

288.78

H.S CODE

3204.13.8000

SMILES

c12c(nc3cc(C)c(cc3n1)N)ccc(c2)N(C)C.Cl

CLASSIFICATION

Coloring agent, pH indicator, Eurhodin dye, Stain

EXTRA NOTES

A vital dye used as an indicator and biological stain. Various adverse effects have been observed in biological systems.
Useful as an indicator for preparing neutral red paper, and as a biological stain.
Visible transition interval: pH 6.8(red) to pH 8.0(yellow)
Other RN: 135446-89-8, 167382-92-5, 1051370-39-8, 1062559-28-7

 

PHYSICAL AND CHEMICAL PROPERTIES

PHYSICAL STATE.

dark green crystalline powder

MELTING POINT

280  C (Decomposes)

BOILING POINT

 

DENSITY

 

SOLUBILITY IN WATER

50 g/l

SOLVENT SOLUBILITY

Slightly soluble in ethanol

VAPOR DENSITY

 

log P(octanol-water)

 

VAPOR PRESSURE

 

AUTOIGNITION TEMP

 
pK

6.7

REFRACTIVE INDEX

 

FLASH POINT

 

 

STABILITY AND REACTIVITY
STABILITY Stable under normal conditions.

INCOMPATIBLE MATERIALS

Strong oxidizing agents

POLYMERIZATION

Has not been reported

NFPA RATINGS

Health: 1, Flammability: 0, Reactivity: 0

 

EXTERNAL LINKS & GENERAL DESCRIPTION

USA.gov - Neutral red

Wikipedia Linking - Neutral red

Google Scholar Search - Neutral red

Drug Information Portal (U.S. National Library of Medicine) - Neutral red

PubChem Compound Summary - Neutral red

KEGG (Kyoto Encyclopedia of Genes and Genomes) -  Neutral red

http://www.ncbi.nlm.nih.gov/ -  Neutral red

Material Safety Data Sheet - Neutral red

EPA - Substance Registry Services - Neutral red

 

SALES SPECIFICATION

APPEARANCE

dark red crystalline powder

DYE CONTENT

90% min

LOSS ON DRYING

8% max

 

TRANSPORT & REGULATORY INFORMATION

UN NO.

 

HAZARD CLASS

 

PACKING GROUP  

 

SAFETY INFORMATION

HAZARD OVERVIEW

Not a dangerous substance according to GHS (Globally Harmonised System). Eyes: May cause eye irritation. Skin: May be harmful if absorbed through skin. May cause skin irritation. Inhalation: May be harmful if inhaled. May cause respiratory tract irritation. Ingestion: May be harmful if swallowed.

HAZARD CODES

 

RISK PHRASES

 

SAFETY PHRASES

 

 

PACKING

Preserve in light-resistant and well-closed containers