IRGASTAB FS 042, CAS# 143925-92-2

 Chemical Name:

Oxidized bis(hydrogenated tallow alkyl) amines

Formula  C36H75NO
Molecular Weight537.9868

Synonym name:

BASF Irgastab fs 042


Melting Range 90~98 °C
Flashpoint NA
Specific Gravity 0.95 (25 °C, g/mL)
Vapor Pressure 1E10 mmHg (25 °C)
Solubility (g/100g solvent) @ 25°C
Acetone <0.1
Ethyl acetate <0.1
Toluene <0.5
Water <0.5


FS 042 is highly recommended to use with phosphite stabilizers such as 168. This combination can be applied as a high efficient melt processing stabilizer system in polypropylene fiber applications, automotive TPO.

FS 042 is a hydroxylamine based, phenol-free antioxidant with excellent color maintenance, high compatibility, low volatility and better storage stability at elevated temperatures. Its outstanding performance over conventional hindered phenolic antioxidant systems is particularly pronounced in the inhibition of gas fading discoloration in automotive industry. Its performance can be further optimized when used in combination with phosphite type antioxidants. It is suitable for the applications in polypropylene fiber, automotive TPO/TPE as well as polyolefins where low color and low gas fading discoloration are important

Handing and Safety: 

>For additional handing and toxicological information, please consult us for Maternal Safety Date Sheet.


Packed with plastic bag in composite plastic woven sack, Net 25kg/bag,1000kg/pallet, 10pallet/20’FCL,or according to customers’ requirements.


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