6300-37-4

Basic information

• Product Name: 4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL
• Synonyms: CI 26090;DISPERSE YELLOW 7;4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL;2-methyl-4-((4-(phenylazo)phenyl)azo)-pheno;2-methyl-4-[[4-(phenylazo)phenyl]azo]-pheno;2-methyl-4-[[4-(phenylazo)phenyl]azo]-Phenol;4-[(4-Phenylazo)phenylazo]-2-methylphenol;acetatefastyellow5rl
• CAS NO: 6300-37-4
• Molecular Formula: C₁₉H₁₆N₄O
• Molecular Weight: 316.36
• EINECS: 228-587-0
• Product Categories: Organics
• Mol File: 6300-37-4.mol
• Article Data: 0

Chemical Properties

• Melting Point: 146-148 °C (dec.)(lit.)
• Boiling Point: 455.78°C (rough estimate)
• Flash Point: 247.584ºC
• Appearance: /
• Density: 1.2119 (rough estimate)
• Vapor Pressure: 0mmHg at 25°C
• Refractive Index: 1.6620 (estimate)
• PKA: 9.19±0.20(Predicted)
• CAS DataBase Reference: 4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL(CAS DataBase Reference)
• NIST Chemistry Reference: 4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL(6300-37-4)
• EPA Substance Registry System: 4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL(6300-37-4)

Safety Data

• Hazard Codes: Xi
• Statements: 36/37/38
• Safety Statements: 26-36
• WGK Germany: 3
• RTECS: SM1140030
• Hazardous Substances Data: 6300-37-4(Hazardous Substances Data)

Usage

Description

4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL is an organic compound characterized by its red light yellow color and dark brown powder form. It is soluble in acetone and DMF, and when mixed with strong sulfuric acid, it turns purple. 4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL is known for its high performance in various applications.

Uses

Used in Textile Industry:
4-[4-(PHENYLAZO)PHENYLAZO]-O-CRESOL is used as a dye for polyester and their blended fabrics. It is suitable for both dyeing and printing processes, and can be used alone or in combination with other dyes for color applications. It offers high performance in terms of ironing fastness, light fastness, perspiration fastness, and washing fastness, with ratings ranging from 3 to 5 according to the ISO standard.

Preparation

4-(Phenyldiazenyl)benzenamine diazo, and o-Cresol?coupling

Standard

Ironing Fastness

Fading

Stain

ISO

4

InChI:InChI=1/C19H16N4O/c1-14-13-18(11-12-19(14)24)23-22-17-9-7-16(8-10-17)21-20-15-5-3-2-4-6-15/h2-13,22H,1H3/b21-20+,23-18+

Synthetic route

ethyl bromide (74-96-4) + C.I. disperse yellow 7 (6300-37-4) → C21H20N4O

Conditions	Yield
With potassium carbonate In acetone at 60℃; for 10h;	97%

1-bromo-hexane (111-25-1) + C.I. disperse yellow 7 (6300-37-4) → C25H28N4O

Conditions	Yield
With potassium carbonate In acetone at 60℃; for 10h;	94%

C.I. disperse yellow 7 (6300-37-4) → aniline (62-53-3) + 1,4-phenylenediamine (106-50-3)

Conditions	Yield
With sodium hydroxide; sodium dithionite In water at 100℃; for 1h; Product distribution; Further Variations:; Temperatures; Solvents; pH-values; reflux condenser;

4-hydroxybutyl acrylate (2478-10-6) + C.I. disperse yellow 7 (6300-37-4) → 4-(4-acryloyloxybutyloxy)-3-methyl-4'-phenylazo-azobenzene

Conditions	Yield
With triphenylphosphine; diethylazodicarboxylate In tetrahydrofuran at -30 - 20℃; for 0.75h;

C.I. disperse yellow 7 (6300-37-4) → C19H16N4O*2F(1-)

Conditions	Yield
With tetrabutyl ammonium fluoride In acetonitrile

Downstream Products

• 62-53-3 aniline 
• 106-50-3 1,4-phenylenediamine