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Y0000654

Leflunomide

European Pharmacopoeia (EP) Reference Standard

Synonym(s):

5-Methylisoxazole-4-(4-trifluoromethyl)carboxanilide

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About This Item

Empirical Formula (Hill Notation):
C12H9F3N2O2
CAS Number:
75706-12-6
Molecular Weight:
270.21
MDL number:
MFCD00867593
UNSPSC Code:
41116107
PubChem Substance ID:
329831077
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

leflunomide

manufacturer/tradename

EDQM

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

Cc1oncc1C(=O)Nc2ccc(cc2)C(F)(F)F

InChI

1S/C12H9F3N2O2/c1-7-10(6-16-19-7)11(18)17-9-4-2-8(3-5-9)12(13,14)15/h2-6H,1H3,(H,17,18)

InChI key

VHOGYURTWQBHIL-UHFFFAOYSA-N

Gene Information

human ... DHODH(1723)

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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.

Application

Leflunomide EP Reference standard, intended for use in laboratory tests only as specifically prescribed in the European Pharmacopoeia.

Packaging

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.

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Y0000674

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Leflunomide impurity A, European Pharmacopoeia (EP) Reference Standard

1357045

Leflunomide Related Compound A, United States Pharmacopeia (USP) Reference Standard

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Leflunomide Related Compound B, United States Pharmacopeia (USP) Reference Standard

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Leflunomide Related Compound C, United States Pharmacopeia (USP) Reference Standard

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Leflunomide Related Compound A, Pharmaceutical Secondary Standard; Certified Reference Material

BP1233

Leflunomide, British Pharmacopoeia (BP) Reference Standard

PHR2878

Leflunomide Related Compound B, pharmaceutical secondary standard, certified reference material

Pictograms

Skull and crossbones
GHS06

Signal Word

Danger

Hazard Statements

H301,H315,H319,H335

Hazard Classifications

Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

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Paul Bird et al.
The Journal of rheumatology, 40(3), 228-235 (2013-01-17)
To assess the safety of treating patients with rheumatoid arthritis with a combination of methotrexate (MTX) and leflunomide (LEF) in comparison to MTX monotherapy, in clinical practice. The Safety of Methotrexate in Combination with Leflunomide in Rheumatoid Arthritis (SMILE) study
Babak Baban et al.
American journal of physiology. Regulatory, integrative and comparative physiology, 303(11), R1136-R1146 (2012-10-27)
The aryl hydrocarbon receptor (AHR) has emerged as a major modulator of inflammatory processes. We tested the hypothesis that AHR activation protects the ischemic-reperfused kidney in association with the suppression of the inflammatory response. Accordingly, male mice were treated with
T Adizie et al.
International journal of clinical practice, 66(9), 906-909 (2012-08-18)
Polymyalgia rheumatica (PMR) and giant cell arteritis (GCA) are related inflammatory rheumatic conditions affecting adults over the age of 50 years. Both conditions respond to initial glucocorticoid (GC) therapy. However, most patients require 12-36 months of a tapering steroid regime.
Paul A J Russo et al.
The Annals of pharmacotherapy, 47(3), e15-e15 (2013-03-01)
To study the pharmacokinetics and pharmacogenetics of leflunomide and document its efficacy and safety in the treatment of inflammatory arthritis in a patient with end-stage renal disease (ESRD) who was on peritoneal dialysis. Therapy for a 78-year-old man with ESRD
Sebastian Unizony et al.
Current opinion in rheumatology, 25(1), 3-9 (2012-11-02)
Recent advancements in the understanding of the pathogenesis of large-vessel vasculitis may broaden our currently limited therapeutic possibilities. This review summarizes the available evidence for new treatment strategies in this spectrum of diseases. Interleukin (IL) 6 appears to be an
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