8004-87-3

Basic information

• Product Name: Basic Violet 1
• Synonyms: [4-[(4-Dimethylaminophenyl)-(4-methylaminophenyl)methylidene]-1-cyclohexa-2,5-dienylidene]-dimethyl-azanium;Methyl Violet 2B, dye content ca 75%;Methyl Violet 2B,pure,indicator grade;Methyl Violet 2B,pure,high purity biologicalstain;Methyl Violet 2B,pure,certified;Methyl violet 2B 1g [8004-87-3];PyrokataniuM blue;Methyl Violet 2B, certified, pure 25GR
• CAS NO: 8004-87-3
• Molecular Formula: C24H28ClN3
• Molecular Weight: 393.95
• EINECS: 210-042-3
• Product Categories: Analytical Chemistry;Indicator (pH);pH Indicators;Analytical Reagents;Microscopy Reagents;Stains and Dyes;Triphenylmethane
• Mol File: 8004-87-3.mol
• Article Data: 0

Chemical Properties

• Melting Point: 137°C
• Boiling Point: 548.19°C (rough estimate)
• Flash Point: 275.7 °C
• Appearance: Green with metal luster/Crystalline Powder With Metal Luster
• Density: 1.0395 (rough estimate)
• Vapor Pressure: 1.04E-10mmHg at 25°C
• Refractive Index: 1.6010 (estimate)
• Solubility: Solubility Soluble in water, ethanol, chloroform; insoluble in e
• Water Solubility: soluble
• BRN: 8464808
• CAS DataBase Reference: Basic Violet 1(CAS DataBase Reference)
• NIST Chemistry Reference: Basic Violet 1(8004-87-3)
• EPA Substance Registry System: Basic Violet 1(8004-87-3)

Safety Data

• Hazard Codes: Xn,N
• Statements: 22-36-50-40
• Safety Statements: 26-36-24/25-22-61-36/37
• RIDADR: 3077
• WGK Germany: 3
• RTECS: CX9899550
• TSCA: Yes
• HazardClass: 9
• PackingGroup: III
• Hazardous Substances Data: 8004-87-3(Hazardous Substances Data)

Usage

Synthesis

Basic Violet 1 can be synthesized by oxidative condensation of dimethylaniline under the action of copper sulfate, phenol and salt, and then through basic transformation, acid transformation and salting out.

Chemical Properties

green crystalline powder with metal lustre

Uses

Different sources of media describe the Uses of 8004-87-3 differently. You can refer to the following data:
1. Medicine (topical antibacterial and antialler-gen), acid–base indicator, alcohol denaturant, bio-logical stain, textile dye.
2. Methyl violet 2B is a biological stain that is commonly used at a pH between 0 and 1.6. It is certified for use in Flemming triple stain with iodine for chromosomes; Newton?s crystal violet-iodine technique for chromatin and nucleoli; Lieb?s amyloid stain.

Properties and Applications

TEST ITEMS SPECIFICATION APPEARANCE DARK GREEN POWDER OR GRANULE SHADE BLUISH PURPLE HEAT RESISTANCE 160 °C min DENSITY 1.07 g/cm 3 LIGHT FASTNESS 1-2 BLEACHABILITY (OXIDATIVE) 4 BLEACHABILITY (REDUCTIVE) 3 WATER SOLUBILITY 20 °C 30 g/L min WATER INSOLUBLE 1.0% max MOISTURE 3.0% max TINTING STRENGTH 100-105 % WEIGHT METAL TOTAL 50ppm max

TEST ITEMS

SPECIFICATION

SHADE

BLUISH PURPLE

WATER SOLUBILITY 20 °C

30 g/L min

TINTING STRENGTH

100-105 %

Purification Methods

Crystallise the dye from EtOH by precipitation with Et2O during cooling in an ice-bath. Filter it off and dry it at 105o. [Beilstein 13 IV 2283.]

InChI:InChI=1/C24H27N3.ClH/c1-25-21-12-6-18(7-13-21)24(19-8-14-22(15-9-19)26(2)3)20-10-16-23(17-11-20)27(4)5;/h6-17H,1-5H3;1H