≥75% (capillary GC)

1,2-Dihydro-6-ethoxy-2,2,4-trimethylquinoline, 6-Ethoxy-1,2-dihydro-2,2,4-trimethylquinoline
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level


≥75% (capillary GC)


1.03 g/mL at 20 °C (lit.)

SMILES string




InChI key


Looking for similar products? Visit Product Comparison Guide


Exclamation mark

Signal Word


Hazard Statements

Precautionary Statements

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Victoria J Berdikova Bohne et al.
Food and chemical toxicology : an international journal published for the British Industrial Biological Research Association, 46(5), 1834-1843 (2008-03-11)
The biological fate of the fish feed additive, ethoxyquin (EQ) was examined in the muscle of Atlantic salmon during 12 weeks of feeding followed by a 2 weeks depuration period. Parent EQ (1,2-dihydro-6-ethoxy-2,2,4-trimethylquinoline), quinone imine (2,6-dihydro-2,2,4-trimethyl-6-quinolone), de-ethylated EQ (6-hydroxy-2,2,4-trimethyl-1,2-dihydroquinoline) and...
R Ørnsrud et al.
Journal of food protection, 74(9), 1574-1580 (2011-09-10)
The feed additive ethoxyquin (EQ) is a commonly used synthetic antioxidant preservative in animal feeds. In farmed Atlantic salmon fillets, EQ residues are present, both as the parent compound and as EQ derivatives. One of the main EQ derivates in...
Ronald A Lubet et al.
Chemico-biological interactions, 182(1), 22-28 (2009-08-22)
Identifying agents that block tumor initiation is a goal of cancer prevention. The ability of a chemically varied group of agents to induce various drug metabolizing genes in livers of rats was examined. Sprague-Dawley rats were treated for 7 days...
Alina Błaszczyk
Toxicology letters, 163(1), 77-83 (2005-11-04)
Ethoxyquin (1,2-dihydro-6-ethoxy-2,2,4-trimethylquinoline, EQ) is widely used in various food products and in animal feeds because of its powerful antioxidant activity. This compound was recently found to cause not only many unfavourable side-effects in animals fed with feeds containing it, but...
Victoria J Berdikova Bohne et al.
Toxicological sciences : an official journal of the Society of Toxicology, 93(1), 11-21 (2006-06-23)
The synthetic antioxidant ethoxyquin (EQ) is increasingly used in animal feeds and has been candidate for carcinogenicity testing. EQ has the potential for toxicological and adverse health effects for both fish and fish consumers through "carryover" processes. The toxicological aspects...

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service

Social Media

LinkedIn icon
Twitter icon
Facebook Icon
Instagram Icon


Research. Development. Production.

We are a leading supplier to the global Life Science industry with solutions and services for research, biotechnology development and production, and pharmaceutical drug therapy development and production.

© 2021 Merck KGaA, Darmstadt, Germany and/or its affiliates. All Rights Reserved.

Reproduction of any materials from the site is strictly forbidden without permission.