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Pigment Yellow 191 / CAS 129423-54-7

Short Description:

Pigment Yellow 191 is a brilliant yellow powder, with good heat resistance and excellent light performance.
Recommend for PVC, RUB, PE, PP, EVA, PS etc.
You can check TDS of Pigment Yellow 191 below.

Product Detail

Product Tags

Product Description

Product Name:            Fast Yellow HGR

Color Index:                 Pigment Yellow 191

C.I.No.                           18795

CAS No.                         129423-54-7

EC No.                           403-530-4

Chemical Nature:        Mono azo

Chemical Formula      C17H13CaClN4O7S2

Technical Properties

A brilliant yellow pigment, with excellent heat resistance, good migration resistance, good weather, light fastness.

Color Shade



Recommend: PVC, EVA, Fiber, RUB, PP, PE and powder coating. Suggested for PU, PC, PS,  and water based paints.

Physical Properties

Appearance Yellow powder
Color Shade Reddish shade
Density(g/cm3) 1.6
Water Soluble Matter ≤1.0
Coloring Strength 100%±5
PH Value 6.5-7.5
Oil Absorption 35-45
Acid Resistance 5
Alkali Resistance 5
Heat Resistance 300℃
Migration Resistance 4-5(1-5, 5 is excellent)



Recommended applications

Heat ℃














Note: The above information is provided as guidelines for your reference only. The accurate effects should base on the test results in laboratory.


Customer Notification



Pigcise series organic pigments cover a wide range of colors, include greenish yellow, medium yellow, red yellow, orange, scarlet, magenta and brown etc. Based on their excellent characteristics, Pigcise series organic pigments can be used in painting, plastic, ink, electronic products, paper and other products with colorants, which can be seen everywhere in our daily life.

Pigcise series pigments are commonly added into color masterbatch and manufacturing of all kinds of plastic products. Some high performance products are suitable for films and fibers application, due to their excellent dispersibility and resistance.

High performance Pigcise pigments are complied with the global regulations in below applications:

●  Food packaging.

●  Food-contacted application.

●  Plastic toys.

QC and Certification

1)     Powerful R&D strength makes our technique in a leading level, with standard QC system meet EU standard requirements.

2)     We have ISO & SGS certificate. For those colorants for sensitive applications, such as food contact, toys etc., we can support with AP89-1, FDA, SVHC, and regulations according to EC Regulation 10/2011.

3)     The regular tests involve Color Shade, Color Strength, Heat Resistance, Migration, Weather Fastness, FPV(Filter Pressure Value) and Dispersion etc.

  • ● Color Shade test standard is according to EN BS14469-1 2004.
  • ● Heat Resistance test standard is according to EN12877-2.
  • ● Migration test standard is according to EN BS 14469-4.
  • ● Dispersibility test standard is according to EN BS 13900-2, EN BS 13900-5 and EN BS 13900-6.
  • ● Light/Weather Fastness test standard is according to DIN 53387/A.


Packing and Shipment

1)      Regular Packings are in 25kgs paper drum, carton or bag. Products with low density will be packed into 10-20 kgs.

2)      Mix and different products in ONE PCL, increase the working efficiency for customers.

3)      Headquartered in Ningbo or Shanghai, both are large ports which are convenient for us provide logistics services.

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