2390-59-2

Basic information

• Product Name: ETHYL VIOLET
• Synonyms: basicviolet;Ethanaminium,N-(4-(bis[4-(diethylamino)phenyl]methylene)-2,5-cyclohexadien-1-ylidene)-N-ethyl-,chloride;LABOTEST-BB LT00159770;ETHYL PURPLE;ETHYL PURPLE 6B;ETHYL VIOLET;ETHYL VIOLET CL;ETHYL VIOLET G
• CAS NO: 2390-59-2
• Molecular Formula: C₃₁H₄₂N₃*Cl
• Molecular Weight: 492.14
• EINECS: 219-231-5
• Product Categories: Organics;Analytical Chemistry;Ion Association;Triphenylmethane
• Mol File: 2390-59-2.mol
• Article Data: 2

Chemical Properties

• Melting Point: >250°C
• Boiling Point: 631.13°C (rough estimate)
• Appearance: Olive green/powder
• Density: 0.9659 (rough estimate)
• Refractive Index: 1.6010 (estimate)
• Storage Temp.: Inert atmosphere,Room Temperature
• Solubility: H2O: 10 mg/mL, very deep purple
• Water Solubility: Soluble in water (10 mg/ml).
• BRN: 4117566
• CAS DataBase Reference: ETHYL VIOLET(CAS DataBase Reference)
• NIST Chemistry Reference: ETHYL VIOLET(2390-59-2)
• EPA Substance Registry System: ETHYL VIOLET(2390-59-2)

Safety Data

• Safety Statements: 24/25
• WGK Germany: 3
• RTECS: KH2682000
• TSCA: Yes
• Hazardous Substances Data: 2390-59-2(Hazardous Substances Data)

Usage

Chemical Properties

green to olive-green crystalline powder

Uses

Ethyl violet has been used to stain pancreatic tissue and elastin in the detection of gram negative bacteria, and as a reagent for the extractive-spectrophotometric determination of anionic surfactants. It has been used in the extraction and spectrophotometric determination of copper. Along with the anionic dye zincon, ethyl violet is used in counterion dye of proteins in SDS-polyacrylamide gel electrophoresis. Along with the anionic dye zincon, ethyl violet is used in counterion dye of proteins in SDS-polyacrylamide gel electrophoresis.

Definition

ChEBI: An organic chloride salt that is the monochloride salt of ethyl violet cation. Used for inclusion in mixed dye solutions of the iron resorcin fuchsin type for demonstrating elastic fibres.

Properties and Applications

TEST ITEMS SPECIFICATION APPEARANCE BLACK VIOLET LIGHTING 2-3 SOAPING 3-4 PERSPIRATING 4 FRICTION(DRY) 4 FRICTION(WET) 3 RESIDUE ON 80 MESH 5.0% max WATER SOLUBLE 1.0% max VOLATITE 105 °C 1.0% max TINTING STRENGTH 100-105 % WEIGHT METAL TOTAL 50ppm max

TEST ITEMS

SPECIFICATION

APPEARANCE

BLACK VIOLET

LIGHTING

2-3

SOAPING

3-4

FRICTION(DRY)

4

FRICTION(WET)

3

RESIDUE ON 80 MESH

5.0% max

WATER SOLUBLE

1.0% max

VOLATITE 105 °C

1.0% max

TINTING STRENGTH

100-105 %

WEIGHT METAL TOTAL

50ppm max

InChI:InChI=1/2C31H42N3.4ClH.Zn/c2*1-7-32(8-2)28-19-13-25(14-20-28)31(26-15-21-29(22-16-26)33(9-3)10-4)27-17-23-30(24-18-27)34(11-5)12-6;;;;;/h2*13-24H,7-12H2,1-6H3;4*1H;/q2*+1;;;;;+2/p-4

Synthetic route

4-(4-(diethylamino)benzyl)-N,N-diethylbenzenamine (135-91-1) + N,N-diethylaniline (91-66-7) → ethyl violet (2390-59-2)

Conditions	Yield
Stage #1: 4-(4-(diethylamino)benzyl)-N,N-diethylbenzenamine; N,N-diethylaniline With chloranil; acetic acid In chloroform at 65℃; for 6h; Stage #2: With hydrogenchloride In water at 80℃;	91.3%
With copper(I) sulfate; copper(II) sulfate

tetrachloromethane (56-23-5) + N,N-diethylaniline (91-66-7) → ethyl violet (2390-59-2) + bis[4-(diethylamino)phenyl][4-(diethylammonio)phenyl]methylium (25275-06-3, 47743-68-0)

Conditions	Yield
With aluminium trichloride at 70 - 80℃; dann auf 100-110grad;

phosgene (75-44-5) + N,N-diethylaniline (91-66-7) → ethyl violet (2390-59-2)

Conditions	Yield
With zinc(II) chloride at 50℃;
With aluminium trichloride at 20 - 30℃;

4,4'-bis(diethylamino)benzophenone (90-93-7) + N,N-diethylaniline (91-66-7) → ethyl violet (2390-59-2)

Conditions	Yield
With chlorinated chlorocarbonic acid ester
With phosgene
With aluminium trichloride
With phosphorus trichloride

N,N-diethylaniline (91-66-7) + trichloromethyl chloroformate (503-38-8) → ethyl violet (2390-59-2)

Conditions	Yield
With zinc(II) chloride
With zinc(II) chloride

ethyl violet (596-49-6) → ethyl violet (2390-59-2)

Conditions	Yield
In water Equilibrium constant;

4.4'.4''-tris-diethylamino-triphenylmethane → ethyl violet (2390-59-2)

sodium cyanide (143-33-9) + ethyl violet (2390-59-2) → tris-(4-diethylamino-phenyl)-acetonitrile (81618-24-8)

Conditions	Yield
With dimethyl sulfoxide

ethyl violet (2390-59-2) → ethyl violet (596-49-6)

Conditions	Yield
With hydroxide In water Equilibrium constant; Rate constant;
With sodium hydroxide In water at 25℃; Kinetics; Concentration; Micellar solution;

ethyl violet (2390-59-2) + bovine serum albumin → 4,4'-bis(diethylamino)benzophenone (90-93-7) + leuco ethyl crystal violet (4865-00-3)

Conditions	Yield
Stage #1: ethyl violet; bovine serum albumin In phosphate buffer at 20℃; pH=7.3; Noncovalent binding generation; Irradiation; Stage #2: In phosphate buffer at 20℃; pH=7.3; Oxidation; Reduction; Photolysis; Title compound not separated from byproducts;

ethyl violet (2390-59-2) + Allura Red AC (25956-17-6) → C18H13N2O8S2(3-)*3C31H42N3(1+)

Conditions	Yield
In water pH=10;

C34H26N6O8S2(2-)*2Na(1+) + ethyl violet (2390-59-2) → 2C31H42N3(1+)*C32H24N8O8S2(2-)

Conditions	Yield
Stage #1: ethyl violet at 75℃; for 2h; Stage #2: C34H26N6O8S2(2-)*2Na(1+) In water at 75℃; for 2h;	55.1 g

Acid Red 97 disodium salt + ethyl violet (2390-59-2) → 2C31H42N3(1+)*C32H20N4O8S2(2-)

Conditions	Yield
Stage #1: ethyl violet at 75℃; for 2h; Stage #2: Acid Red 97 disodium salt In water at 50 - 75℃; for 2h;	52.3 g

ethyl violet (2390-59-2) + metanil yellow (587-98-4) → C31H42N3(1+)*C18H14N3O3S(1-)

Conditions	Yield
Stage #1: ethyl violet at 75℃; for 2h; Stage #2: metanil yellow In water at 75℃; for 2h;	29 g

ethyl violet (2390-59-2) → C31H42(2)HN3

Conditions	Yield
With sodium borodeuteride In N,N-dimethyl-formamide for 2h; Reagent/catalyst;	6 g

ethyl violet (2390-59-2) + bis(trifluoromethane)sulfonimide lithium (90076-65-6) → C31H42N3(1+)*C2F6NO4S2(1-)

Conditions	Yield
In chloroform; water at 20℃; for 2h;

Upstream product

• 91-66-7 N,N-diethylaniline 
• 503-38-8 trichloromethyl chloroformate 
• 596-49-6 ethyl violet 
• 90-93-7 4,4'-bis(diethylamino)benzophenone 
• 135-91-1 4-(4-(diethylamino)benzyl)-N,N-diethylbenzenamine 
• 75-44-5 phosgene 
• 56-23-5 tetrachloromethane 

Downstream Products

• 81618-24-8 tris-(4-diethylamino-phenyl)-acetonitrile 
• 596-49-6 ethyl violet 
• 90-93-7 4,4'-bis(diethylamino)benzophenone 
• 4865-00-3 leuco ethyl crystal violet 

Relevant articles and documents

Method for preparing triarylmethane compounds and application thereof

The invention discloses a method for preparing a triarylmethane dye. 4,4'-N,N-disubstituted aminodiphenylmethane (bass) and aromatic amines or substituted aromatic amines, phenols or substituted phenols are dissolved in a solvent, metal complexes and tetrachlorobenzoquinone are used as catalysts and oxygen is used as oxidant, the mixture reacts for 5-8 hours at acid conditions and a certain temperature, so that the product triarylmethane dye is obtained in one step, and the commercialized product is obtained through further treatment, so as to meet the application requirement in different fields. The method is simple and safe, and has high yield and less three-wastes.