Fast Yellow G

Synonym(s):2-[(4-Methyl-2-nitrophenyl)azo]-3-oxo-N-phenylbutyramide;Hansa Yellow G

CAS NO.：2512-29-0
Empirical Formula: C17H16N4O4
Molecular Weight: 340.33
MDL number: MFCD00078234
EINECS: 219-730-8
SAFETY DATA SHEET (SDS)
Update Date: 2023-06-08 17:06:36

What is Fast Yellow G?

The Uses of Fast Yellow G

The Hansa yellow is a bright monoarylide often used in trade sales and emulsion paints. They have low opacity in paint films and are soluble in aromatic solvents.

The Uses of Fast Yellow G

Hansa Yellow is used in method for dyeing keratinous material, comprising the use of an Organosilicon compound, a Chromophoric compound and a film-forming polymer II.

Preparation

4-Methyl-2-nitrobenzenamine?diazo, and 3-Oxo-N-phenylbutanamide?coupling.

Properties and Applications

brilliant yellow. Slightly soluble in ethanol, acetone and benzene. Melting point 256 ℃. The strong sulfuric acid for golden brown, after diluted yellow precipitation; No change in nitric acid; In strong hydrochloric acid solution for red; Sodium hydroxide solution in a dilute no change. And C.I.Pigment Yellow 1 the same chemical structure.

Properties of Fast Yellow G

Melting point:	>255°C (dec.)
Boiling point:	546.5±50.0 °C(Predicted)
Density	1.30±0.1 g/cm3(Predicted)
vapor pressure	0Pa at 25℃
storage temp.	Amber Vial, -20°C Freezer
solubility	Chloroform (Slightly, Heated, Sonicated), DMSO (Very Slightly, Heated)
Colour Index	11680
form	neat
pka	8.80±0.59(Predicted)
color	Yellow to Dark Yellow
Stability:	Light Sensitive
CAS DataBase Reference	2512-29-0(CAS DataBase Reference)
EPA Substance Registry System	C.I. Pigment Yellow 1 (2512-29-0)

Safety information for Fast Yellow G

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H317:Sensitisation, Skin
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P272:Contaminated work clothing should not be allowed out of the workplace. P280:Wear protective gloves/protective clothing/eye protection/face protection. P501:Dispose of contents/container to..…