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Gentian Violet or Methylrosanilinium Chloride or Crystal Violet Manufacturer Exporter BP Ph Eur USP Grade Manufacturer Exporter
Crystal Clear Products is a manufacturer exporter company manufacturing several chemicals including Gentian Violet or Methylrosanilinium Chloride or Crystal Violet and IP BP Ph Eur USP NF JP ACS AR Analytical Reagent FCC Food Grade, Pharmaceutical Chemicals at best prices. The group has offices and factories in India USA and UAE and toll manufacturers in China and sells to almost every country in the world.
The manufacturing facilities of our partner manufacturers have one or more of FDA-cGMP-GLP certification, ISO-9001 certification, Halal and/or Kosher certification, REACH pre-registration ISO-22000 HACCP. We also allow third party inspection of products offered. We can offer small quantities from laboratory and trial packs to large shipments of container loads of material.
Hazard Statements:
H302: Harmful if swallowed.
H318: Causes serious eye damage.
H351: Suspected of causing cancer.
H410: Very toxic to aquatic life with long lasting effects.
Signal Word: Danger
Transport Information
DOT USA, TDG Canada & ADR/RID Europe:
UN/ID no UN3077
Hazard Class 9
Packing Group III
Proper shipping name Environmentally hazardous substance, solid, n.o.s.
Description UN3077, Environmentally hazardous substance, solid, n.o.s. (Crystal Violet), 9, III
Emergency Response Guide Number 171
IMDG/IMO:
UN/ID no UN3077
Hazard Class 9
Packing Group III
Proper shipping name Environmentally hazardous substance, solid, n.o.s.
Description UN3077, Environmentally hazardous substance, solid, n.o.s. (Crystal Violet), 9, III
IATA/ICAO:
UN/ID no UN3077
Hazard Class 9
Packing Group III
Proper shipping name Environmentally hazardous substance, solid, n.o.s.
Description UN3077, Environmentally hazardous substance, solid, n.o.s. (Crystal Violet), 9, III
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Gentian Violet or Methylrosanilinium Chloride or Crystal Violet SDS of Manufacturers
CAS Number 548-62-9 Gentian Violet or Methylrosanilinium Chloride or Crystal Violet, EINECS: 208-953-6, Molecular Weight: 407.98, Chemical Formula: C25H30ClN3
Gentian Violet USP Grade Specifications , 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 CAS 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%).
Methylrosanilinium Chloride BP Ph Eur Grade Specifications:
C25H30ClN3 -- 408.0 -- CAS 548-62-9
Action and use: Antiseptic dye (gentian violet).
DEFINITION
N-[4-[Bis[4-(dimethylamino)phenyl]methylene]cyclohexa-2,5-dienylidene]-N-methylmethanaminium chloride (hexamethyl-p-rosanilinium chloride). It contains not more than 10 per cent of pentamethyl-p-rosanilinium chloride and is also known as crystal violet and gentian violet.
Content: 95.0 per cent to 103.0 per cent (anhydrous substance).
CHARACTERS
Appearance: Dark green, shiny powder, hygroscopic.
Solubility: Sparingly soluble in water, freely soluble in ethanol (96 per cent) and in methylene chloride.
IDENTIFICATION
First identification: A.
Second identification: B, C
A. Infrared absorption spectrophotometry Comparison Methylrosanilinium chloride CRS.
B. Thin-layer chromatography: To pass the test.
C. Dissolve 50 mg in water and dilute to 5 mL with the same solvent; add 3 mL of dilute sulfuric acid, 1 g of zinc powder and heat gently. The mixture decolourises. Filter. To 3 mL of the filtrate add 0.5 mL of silver nitrate solution. A white turbidity is produced which slowly forms a dark, coagulating precipitate.
Pentamethyl-p-rosanilinium: To pass the test.
Related substances: To pass the test.
Substances insoluble in ethanol (90 per cent V/V): Maximum 0.5 per cent.
Water: Maximum 10.0 per cent, determined on 0.100 g.
Sulfated ash: Maximum 1.5 per cent, determined on 1.0 g.
Contact for Monograph, Uses, Matnfacturing Process, etc of Gentian Violet or Methylrosanilinium Chloride or Crystal Violet and JP IP BP Ph Eur USP NF FCC Food AR ACS Reagent Grade Manufacturer Supplier Exporter
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Last updated
11/19/2022
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