632-99-5 Usage
Description
FUCHSIN BASIC is a dark green powder derived from triphenylmethane, which is a hydrochloride that is the monohydrochloride of 4-[(4-aminophenyl)(4-iminocyclohexa-2,5-dien-1-ylidene)methyl]-2-methylaniline. It is one of the major constituents of Basic fuchsin, along with pararosanilin, magenta II, and new fuchsin. FUCHSIN BASIC is characterized by its violet appearance and green crystal powder form.
Uses
Used in Dye Industry:
FUCHSIN BASIC is used as a dye or in the manufacture of other dyes due to its vibrant color and tinting strength of 100-105%.
Used in Biological Stains:
FUCHSIN BASIC is used as a biological stain for distinguishing coli and aerogene bacteria. It is particularly useful for Ziehl-Neelson staining to detect acid-fast bacilli, such as tubercle bacillus and bacterial flagella. It also plays an important role in staining tissue sections to visualize elastic fibers, cardiac and skeletal muscle tissue, and acts as a bacterial and histological stain. Additionally, it is used to stain cellular elements and certain tissues.
Used in Local Anti-Infectives:
FUCHSIN BASIC also acts as a local anti-infective, providing benefits in the medical field for infection control and prevention.
Air & Water Reactions
Slightly soluble in water.
Reactivity Profile
FUCHSIN BASIC neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides. Easily reduced to colorless leuco-bases .
Fire Hazard
Flash point data for FUCHSIN BASIC are not available, but FUCHSIN BASIC is probably combustible.
Flammability and Explosibility
Notclassified
Clinical Use
Basic fuchsin is a mixture of the chlorides of rosaniline andp-rosaniline. It exists as a green crystalline powder with ametallic appearance. The compound is soluble in water andin alcohol but insoluble in ether. Basic fuchsin is a componentof carbol–fuchsin solution (Castellani’s paint), which isused topically in the treatment of fungal infections, notablyringworm and athlete’s foot.
TEST ITEMS
SPECIFICATION
RESIDUE ON 80 MESH
5.0% max
VOLATITE 105 °C
1.0% max
WEIGHT METAL TOTAL
50ppm max
Purification Methods
Purify the dye by dissolving it in EtOH, filtering and adding H2O. Filter or centrifuge it and wash the precipitate with Et2O and dry it in air. It has also been recrystallised from water and dried in vacuo at 40o. The crystals have a metallic green lustre. It has UV max in EtOH at 543nm ( 93,000). Its solubility in H2O is 0.26%. A carmine red colour is obtained in EtOH. It is paraRosaniline with a methyl group. [Scalan J Am Chem Soc 57 887 1937.]
Check Digit Verification of cas no
The CAS Registry Mumber 632-99-5 includes 6 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 3 digits, 6,3 and 2 respectively; the second part has 2 digits, 9 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 632-99:
(5*6)+(4*3)+(3*2)+(2*9)+(1*9)=75
75 % 10 = 5
So 632-99-5 is a valid CAS Registry Number.
InChI:InChI=1/C20H19N3.ClH/c1-13-12-16(6-11-19(13)23)20(14-2-7-17(21)8-3-14)15-4-9-18(22)10-5-15;/h2-12,23H,21-22H2,1H3;1H
632-99-5Relevant articles and documents
Use of aromatic compounds as phase directors and particle size reducers for quinacridone pigments
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, (2008/06/13)
The present invention relates to a process for producing alpha, gamma-I, gamma-II and gamma-III crystal modifications of quinacridone and transparent quinacridone pigments including the solid solutions of various quinacridones, using a variety of tris-aryl-s-triazines, particularly resorcinol triazine derivatives, or aromatic- or heteraromatic-compounds having at least one hydroxyl or keto group bonded to the ring, as an additive, prior to or concurrently with the oxidation of corresponding dihydroquinacridone salts.
