Neutral red / Basic Red: 5 / quinodimethylbutane

English name：Neutral red；Toluylene red；Aminodimethylaminotoluaminozine；3-Amino-7-dimethylamino-2-methylphenazine hydrochloride；C.I. 50040  

Other names: alkaline red 5; 2-methyl-3-amino-6-dimethylaminodiazanthrene hydrochloride; 3-amino-6-dimethylamino-2-methylphenazine hydrochloride; N8-3-trimethyl-2,8-phenazine diamine monohydrochloride; Quinol dimethyl butane; 3-amino-7-dimethylamino-2-methylphenazine hydrochloride

CAS No.: 553-24-2

C15H17ClN4=288.78

Grade: BS

Biological staining test: qualified

Burning residue: ≤ 2.0%

Grade: ind

Acid base indicator, pH 6.8 (red) ～ 8.0 (yellow);

Qualification test: qualified

Ethanol solution test: acceptable

Physicochemical properties: dark green, brown or light black powder. The solubility is 4.0% in water, 1.8% in absolute ethanol, 3.75% in ethylene glycol and 3.0% in ethylene glycol. It is almost insoluble in xylene and its aqueous solution or ethanol solution is red. The maximum absorption wavelength (50% ethanol) was 533Nm. LD50 (rat, intravenous) 112mg / kg

Purpose: biochemical research. Alkalinity indicators of water, nitrite and urine; Hydrolysis indicator for fat in histochemistry; Nissl pellet staining of nerve cells; It was used for in vitro and in vivo staining of blood together with genistein green; Photometric determination of iodine ion; Preparation of neutral red test paper

Saving: RT