Skip to Content
Merck
All Photos(1)

Documents

1357067

USP

Leflunomide Related Compound C

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

5-Methylisoxazole-4-(3-trifluoromethyl)carboxanilide, 5-Methyl-N-[3-(trifluoromethyl)phenyl]-4-isoxazolecarboxamide

Sign Into View Organizational & Contract Pricing


About This Item

Empirical Formula (Hill Notation):
C12H9F3N2O2
CAS Number:
Molecular Weight:
270.21
Beilstein:
1083122
MDL number:
UNSPSC Code:
41116107
PubChem Substance ID:
NACRES:
NA.24

grade

pharmaceutical primary standard

API family

leflunomide

manufacturer/tradename

USP

application(s)

pharmaceutical (small molecule)

format

neat

SMILES string

O=C(C1=C(C)ON=C1)NC2=CC=CC(C(F)(F)F)=C2

InChI

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

InChI key

KBFQQKBZIFSAMY-UHFFFAOYSA-N

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 Related Compound C USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia.

Analysis Note

These products are for test and assay use only. They are not meant for administration to humans or animals and cannot be used to diagnose, treat, or cure diseases of any kind.  ​

Other Notes

Sales restrictions may apply.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Precautionary Statements

Hazard Classifications

Acute Tox. 4 Oral

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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