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Crystal Violet Methylrosanilinium Chloride BP Gentian Violet USP Manufacturers Suppliers, India
Anmol Chemicals are manufacturers of Specialty Chemicals and Pharmaceutical Excipients, in India. Anmol Chemicals Group has manufacturing facilities spread across India, representatives in Houston Chicago USA and toll manufacturers in China. We make IP, BP, USP, Ph Eur, FCC or Food Grade, ACS, AR or Analytical Reagent Grade, LR or Laboratory Reagent Grade and Pure Grades of various chemicals. All our items are analyzed to meet the required standards.
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Gentian Violet Methylrosanilinium Chloride
Molecular formula: C25H30ClN3
Molecular Weight: 407.98
CAS No.: 548-62-9
EINECS EC Number: 208-953-6
Synonyms: Basic violet 3 (C.I. 42555); N-{4-{Bis-[4-(diethylamino)-phenyl]-methylene}-2,5-cyclohexadien-1-ylidene}-N-methylmethanaminium chloride; Crystal violet;
Hexamethylpararosaniline chloride; Hexamethyl violet; Methyl violet.
Methanaminium, N-[4-[bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-Nmethyl-,chloride.
[4-[Bis[p-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium chloride.
Specifications of Gentian Violet or Methylrosanilinium Chloride:
Gentian Violet contains not less than 96.0 percent and not more than 100.5 percent of gentian violet (C25H30ClN3), calculated on the anhydrous basis.
Chromatographic Purity: 96-101%
Water: Not more than 7.5%.
Residue on ignition: Not more than 1.5%.
Alcohol-insoluble substances— Not more than 1.0% of insoluble residue remains.
Arsenic— The limit is 0.001%.
Lead—The limit is 0.003%.
Zinc— Not more than 0.05%.
Gentian Violet USP, Crystal Violet
Gentian Violet USP
C25H30ClN3 407.98
Methanaminium, N-[4-[bis[4-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]-Nmethyl-,chloride.
C. I. Basic violet 3.
[4-[Bis[p-(dimethylamino)phenyl]methylene]-2,5-cyclohexadien-1-ylidene]dimethylammonium chloride [548-62-9].
Gentian Violet contains not less than 96.0 percent and not more than 100.5 percent of gentian violet (C25H30ClN3), calculated on the anhydrous basis.
Identification—
A: Sprinkle about 1 mg on 1 mL of sulfuric acid: it dissolves in the acid with an orange or brown red color. When this solution is
diluted cautiously with water, the color changes to brown, then to green, and finally to blue.
B: Dissolve about 20 mg in 10 mL of water, and add 5 drops of
hydrochloric acid. To 5 mL of this solution add tannic acid TS drop wise: a deep blue precipitate is formed.
C: To the remainder of the solution prepared for
Identification test B add about 500 mg of zinc dust, and warm the mixture: rapid de-colorization occurs. Place a drop of the decolorized solution adjacent to a drop of
6 N ammonium hydroxide on a filter paper: a blue color is produced at the zone of contact.
Water: not more than 7.5%.
Residue on ignition: not more than 1.5%.
Alcohol-insoluble substances— Boil 1.0 g, accurately weighed, with 50 mL of alcohol under a reflux condenser for 15 minutes, filter through a tarred filtering
crucible, wash the residue on the filter with hot alcohol until the last washing is not colored violet, and dry the crucible at 105 for 1 hour: not more than 1.0% of
insoluble residue remains.
Arsenic— The limit is 0.001%.
Lead—The limit is 0.003%.
Zinc—
Zinc standard stock solution— Transfer about 1 g of zinc, accurately weighed, to a 1000-mL volumetric flask, add 50 mL of nitric acid, and mix to dissolve. Dilute with
water to volume, and mix.
Standard preparation— Dilute the Zinc standard stock solution with water to obtain a Standard preparation containing 0.50 Ag of zinc per mL.
Test preparation— Weigh accurately 0.50 g of Gentian Violet in a suitable tarred crucible. Place in a low-temperature plasma ashing apparatus, and ash until a constant
weight is attained. Pipette 10 mL of 6 N nitric acid into the crucible, and heat to dissolve the ash. Transfer the solution to a 500-mL volumetric flask, dilute with
water to volume, and mix. Prepare a reagent blank.
Procedure— Concomitantly determine the absorbance of the Standard preparation, the Test preparation, and the reagent blank at the zinc emission line at 213.9 nm, with
a suitable atomic absorption spectrophotometer (see Spectrophotometry and Light-Scattering 851 ) equipped with a zinc lamp and an air–acetylene flame, using water as
the blank. The absorbance of the Test preparation, corrected for that of the reagent blank, is not greater than the absorbance of the Standard preparation, similarly
corrected (0.05%).
Chromatographic purity— Dissolve 10 mg in 10 mL of methanol to obtain the Test solution. Transfer 1.0 mL of Test solution to a 100-mL volumetric flask, dilute
with methanol to volume, and mix (Diluted test solution). Apply 5 AL each of the Test solution and the Diluted test solution to a suitable thin-layer chromatographic
plate (see Chromatography 621 ) coated with a 0.25-mm layer of octadecylsilanized chromatographic silica gel. Allow the spots to dry, and develop the chromatogram in
a suitable chromatographic chamber with a solvent system consisting of the upper layer separated from a well-shaken mixture of water, butyl alcohol, and glacial acetic
acid (100:80:20), until the solvent front has moved about three-fourths of the length of the plate. Remove the plate from the chamber, allow the solvent to evaporate,
and visually locate the spots on the plate: the Test solution exhibits a principal spot and not more than one secondary spot which, if present in the chromatogram from
the Test solution, is not more intense than the principal spot obtained from the Diluted test solution (1.0%).
Assay— Transfer about 400 mg of Gentian Violet, accurately weighed, to a 300-mL conical flask, add 25 mL of water and 10 mL of hydrochloric acid, displace the air in
the flask with carbon dioxide, and pass a stream of carbon dioxide through the flask during the assay. Add 50.0 mL of 0.1 N titanium trichloride VS, heat to boiling,
and boil gently for 10 minutes, swirling the liquid occasionally. Cool the solution, add 5 mL of ammonium thiocyanate solution (1 in 10), and titrate with 0.1 N ferric
ammonium sulfate VS until a faint red color is produced. Perform a blank determination (see Residual Titrations 541 ). Each mL of 0.1 N titanium trichloride is
equivalent to 20.40 mg of C25H30ClN3.
Gentian Violet is also called Crystal Violet or Basic Violet #3, Methylrosanilinium Chloride that’s the name in BP, Ph. Eur. and Hexamethyl-p-Rosaniline Chloride.
IUPAC Name is 4-[(4-dimethylaminophenyl)-phenyl-methyl]-N,N-dimethyl-aniline
Manufacturers
ANMOL CHEMICALS
S-8, SARIFA MANSION, 2ND PRINCIPAL SHAIKH HASAN MARG, MUMBAI 400009, INDIA
TEL: (OFF) 91-22-23726950, 23774610, 23723564. FAX: 91-22-23728264
e-mail: info@anmol.org
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Exporters to USA, UAE, Europe, South Africa, Tanzania, Kenya, Egypt, Turkey, Nigeria, Uganda, Brazil, Chile, Argentina, Dubai etc.
Representatives in New York, Houston - Texas, Chicago - Illinois, Los Angeles.
Fast Selling IP BP USP ACS FCC Food Grades of Chemicals by Anmol Chemicals
Aluminum Chloride ---------- Ammonium Sulfate ----- Ammonium Persulfate
Aluminum Potassium Sulfate - Ammonium Chloride ---- Ammonium Bicarbonate
Ammonium Carbonate --------- Benzyl Alcohol ------- Boric Acid
Benzoic Acid --------------- Borax; Sodium Borate - Calcium Chloride
Calcium Hydroxide ---------- Calcium Acetate ------ Calcium Butyrate
Calcium Lactobionate ------- Calcium Levulinate --- Calcium Saccharate
Carbamide Peroxide --------- Citric Acid ---------- Calcium Phosphate
Calcium Oxide -------------- Calcium Sulfate ------ Chromic Chloride
Cupric Chloride ------------
Ferric Chloride ------------ Ferric Nitrate ------- Fumaric Acid
Gentian Violet ------------- Glacial Acetic Acid
Lactobionic Acid ----------- Magnesium Butyrate
Magnesium Oxide ------------ Magnesium Chloride --- Magnesium Sulfate
Malic Acid ----------------- Maleic Acid ---------- Manganese Chloride
Manganese Sulfate ---------- Methylene Blue ------- Oleic Acid
Octyldodecanol -------------
Propylene Carbonate -------- Potassium Acetate ---- Potassium Carbonate
Potassium Hydroxide -------- Potassium Chloride --- Potassium Phosphate
Potassium Bitartrate ------- Propylene Carbonate -- Selenious acid
Sodium Molybdate ----------- Sodium Perborate ----- Sodium Phosphate
Sodium Propionate ---------- Sodium Acetate ------- Sodium Bicarbonate
Sodium Hydroxide ----------- Sodium Chloride ------ Sodium Thiosulfate
Sodium Selenite ------------ Urea ----------------- Zinc Chloride
Other Best Selling Products
Ammonium Bromide ----------- Ammonium Phosphate --- Barium Chloride
Butylated Hydroxyanisole --- Butylated Hydroxytoluene
Calcium Nitrate Nitrite ---- Calcium Propionate --- Copper Sulfate
Ceric Ammonium Nitrate ----- Cinnamaldehyde ------- Isatoic Anhydride
Directly Compressible Calcium Carbonate ----------- Encapsulated Citric Acid
Encapsulated Fumaric Acid -- Encapsulated Sodium Bicarbonate -
Encapsulated Sorbic Acid
Potassium Bromide ---------- Potassium Iodide ----- Potassium Nitrate Nitrite
Sodium Bromate ------------- Skatole -------------- Sodium Butyrate
Sodium Nitrite & Nitrate --- Sodium Bromide ------- Sodium Diacetate
Sodium Formaldehyde Bisulfite Strontium Chloride -- Stannous Chloride
TBHQ Tertiary Butylhydroquinone
Gentian Violet
Crystal violet, Methylrosanilinium chloride, Basic violet Methyl violet
| Gentian Violet ( CAS No, 548-62-9; 603-47-4) |
| Basic violet 3 (C.I. 42555) Methylrosanilinium chloride N-{4-{Bis-[4-(diethylamino)-phenyl]-methylene}-2,5-cyclohexadien-1-ylidene}-N-methylmethanaminium chloride C.I. 42555 Crystal violet Gentian violet (C.I. 42555) Hexamethylpararosaniline chloride Hexamethyl violet Methyl violet |