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HomeProduct name listFast Yellow G

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: 2025-01-27 09:38:02
Fast Yellow G Structural

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)
ghs
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..…

Computed Descriptors for Fast Yellow G

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