Etodolac for peak identification

European Pharmacopoeia (EP) Reference Standard

Etodolac, Etodolic acid, NSC 282126, 1,8-Diethyl-1,3,4,9-tetrahydropyrano[3,4-b]indole-1-acetic acid
Empirical Formula (Hill Notation):
CAS Number:
Molecular Weight:
MDL number:
PubChem Substance ID:


pharmaceutical primary standard





Featured Industry

Pharmaceutical (small molecule)



storage temp.


SMILES string




InChI key


Gene Information

human ... PTGS2(5743)

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General description

This product is provided as delivered and specified by the issuing Pharmacopoeia. All information provided in support of this product, including SDS and any product information leaflets have been developed and issued under the Authority of the Issuing Pharmacopoeia. For further information and support please go to the website of the issuing Pharmacopoeia.

Biochem/physiol Actions

Non-steroidal anti-inflammatory compound that is a non-selective inhibitor of COX-1 and COX-2.


Unit quantity: 0.41 mg. Subject to change. The product is delivered as supplied by the issuing Pharmacopoeia. For the current unit quantity, please visit the EDQM reference substance catalogue.


Other Notes

Sales restrictions may apply.


Skull and crossbones

Signal Word


Hazard Statements


UN 2811 6.1 / PGIII

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis

Certificate of Origin

Yael Goldfarb et al.
Annals of surgery, 253(4), 798-810 (2011-04-09)
Surgical procedures, including primary tumor resection, have been suggested to suppress immune competence and to promote postoperative infections and cancer metastasis. Catecholamines and prostaglandins were recently implicated in these processes, and in directly promoting tumor angiogenesis and invasion. To examine...
S Lynch et al.
Drugs, 31(4), 288-300 (1986-04-01)
Etodolac is a new non-steroidal agent (NSAID) with anti-inflammatory and analgesic activity. It has been studied in rheumatoid arthritis, osteoarthritis, and pain resulting from minor surgery. In the latter setting, etodolac is at least as effective as aspirin in terms...
N Zvaifler
Clinical rheumatology, 8 Suppl 1, 43-53 (1989-03-01)
Etodolac (Lodine, Ramodar, Ultradol), an anti-inflammatory, analgesic agent, is the first of a new class of nonsteroidal anti-inflammatory drugs (NSAIDs), the pyranocarboxylic acids. A review of the literature on numerous clinical studies showed that etodolac (200 to 600 mg/day) is...
Etodolac: the chemistry, pharmacology, metabolic disposition, and clinical profile of a novel anti-inflammatory pyranocarboxylic acid.
L G Humber
Medicinal research reviews, 7(1), 1-28 (1987-01-01)
D R Brocks et al.
Clinical pharmacokinetics, 26(4), 259-274 (1994-04-01)
Etodolac is a chiral nonsteroidal anti-inflammatory drug (NSAID) that is marked as the racemate. Currently, the drug is available in several countries for the treatment of arthritis and the alleviation of pain. Etodolac possesses several unique disposition features mainly due...

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