Description

This compound appears as yellow-green to black-green crystalline blocks or powder with a metallic luster. It is slightly soluble in water, producing a reddish-purple solution, and is readily soluble in alcohol, yielding a red solution. It turns yellow-brown when mixed with concentrated sulfuric acid and becomes nearly colorless upon dilution. When aqueous solutions are treated with sodium hydroxide, a nearly colorless liquid with a red precipitate is formed. pH: 5–6 (1g/L, H₂O, 20°C). Melting point: 235°C (decomposes).

Specification

Grade	Analysis
Formula	C₂₀H₂₀N₃Cl
MW	337.86
CAS	632-99-5
Appearance	Dark Green Crystalline Powder
Identification	To pass tests
Loss on drying at 110℃/1hour	≤10.0%
Dye content	≥88.0%
Spectroscopy	549 nm in 50% ethanol
Solubility (0.1% in 50% EtOH)	Clear solution
Storage	R.T

Application

Used as one of the strongest nuclear stains for chromatin, elastic fibers, and fuchsinophilic granules.
Applied in histology for nuclear staining of central nervous system tissues.
Utilized in bacteriology for the identification of Mycobacterium tuberculosis.
Key component of Schiff's reagent for the detection of aldehydes in analytical chemistry.
Acts as a redox indicator in titrations involving bromates.

Storage

Store at room temperature.

Documents

COA

SDS

Disclaimer: For laboratory research use only.

Basic Fuchsin, Certified