6369-47-7

Basic information

• Product Name: 10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one
• Synonyms: Vat Black 2;C.I.Vat Black 2:C.I.73830;4H-Benzo[a]carbazol-4-one, 3-(1,3-dihydro-3-oxo-2H-indol-2-ylidene)-3,11-dihydro-10-methyl-
• CAS NO: 6369-47-7
• Molecular Formula: C₂₅H₁₆N₂O₂
• Molecular Weight: 376.41
• EINECS: 613-325-3
• Mol File: 6369-47-7.mol
• Article Data: 0

Chemical Properties

• Boiling Point: 636.9°C at 760 mmHg
• Flash Point: 339°C
• Density: 1.431g/cm³
• Vapor Pressure: 4.05E-16mmHg at 25°C
• Refractive Index: 1.802
• CAS DataBase Reference: 10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one(CAS DataBase Reference)
• NIST Chemistry Reference: 10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one(6369-47-7)
• EPA Substance Registry System: 10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one(6369-47-7)

Safety Data

• Hazardous Substances Data: 6369-47-7(Hazardous Substances Data)

Usage

Description

10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one is an organic compound with a unique chemical structure and a variety of applications in different industries. It is characterized by its blue light grey to blue black color, and it appears as a black powder. 10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one exhibits different colors when exposed to various chemical solutions, such as black in concentrated sulfuric acid, blue-black in dilute sulfuric acid, green yellow in basic insurance powder solution, and pale yellow in acidic insurance powder solution.

Uses

Used in Textile Industry:
10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one is used as a direct dye for cotton fabric, providing a blue ash or blue black color. It is particularly useful for dyeing, reserving, and coloring discharge processes.
Standard:
10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one adheres to various industry standards, ensuring its quality and performance in different applications.
Ironing Fastness:
It has a rating of 4, indicating that the color remains fast even after ironing, making it suitable for fabrics that require frequent ironing.
Chlorine Bleach:
10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one has a rating of 4-5, which means it can withstand chlorine bleach without significant color fading.
Light Fastness:
With a rating of 3, the color of the fabric dyed with this compound may fade slightly when exposed to sunlight for an extended period.
Mercerized:
10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one is compatible with the mercerization process, which enhances the luster, strength, and affinity for dyes of cotton fabrics.
Oxygen Bleach:
It has a rating of 3, indicating that the color may fade when exposed to oxygen bleach.
Soaping:
10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one has a good soaping fastness, ensuring that the color remains intact even after washing with soap.
Fading:
The fabric dyed with this compound may experience some fading, but it is still suitable for various applications in the textile industry.
Stain:
10-methyl-3-(3-oxoindolin-2-ylidene)-11H-benzo[a]carbazol-4-one is effective in preventing stains on dyed fabrics, making it a valuable addition to the textile industry.

Preparation

10-Methyl-11H-benzo[a]carbazole-3,4-dione with 2-Phenylimino-3-indolinone in Acetic anhydride – formic acid solution condensation.

Standard

Ironing Fastness

Fading

Stain

ISO

4