Skip to Content
Merck
CN

1411005

USP

Methimazole

United States Pharmacopeia (USP) Reference Standard

Synonym(s):

1-Methyl-2-imidazolethiol, 2-Mercapto-1-methylimidazole

Sign In to View Organizational & Contract Pricing.

Select a Size


About This Item

Empirical Formula (Hill Notation):
C4H6N2S
CAS Number:
Molecular Weight:
114.17
UNSPSC Code:
41116107
NACRES:
NA.24
PubChem Substance ID:
MDL number:
Beilstein/REAXYS Number:
108646
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist
Technical Service
Need help? Our team of experienced scientists is here for you.
Let Us Assist

Product Name

Methimazole, United States Pharmacopeia (USP) Reference Standard

InChI key

PMRYVIKBURPHAH-UHFFFAOYSA-N

InChI

1S/C4H6N2S/c1-6-3-2-5-4(6)7/h2-3H,1H3,(H,5,7)

SMILES string

CN1C=CNC1=S

grade

pharmaceutical primary standard

API family

methimazole

manufacturer/tradename

USP

mp

144-147 °C (lit.)

application(s)

pharmaceutical (small molecule)

format

neat

Gene Information

human ... TPO(7173)

Looking for similar products? Visit Product Comparison Guide

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.  ​

Application

Methimazole USP reference standard, intended for use in specified quality tests and assays as specified in the USP compendia. Also, for use with USP monographs such as:
  • Methimazole Tablets

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.

Other Notes

Sales restrictions may apply.

pictograms

Health hazardExclamation mark

signalword

Warning

Hazard Classifications

Acute Tox. 4 Oral - Eye Irrit. 2 - Repr. 2 - Skin Sens. 1

Storage Class

11 - Combustible Solids

wgk

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

It looks like we've run into a problem, but you can still download Certificates of Analysis from our Documents section.

If you need assistance, please contact Customer Support

Already Own This Product?

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

Visit the Document Library

Fernando Bolaños et al.
Revista de investigacion clinica; organo del Hospital de Enfermedades de la Nutricion, 54(4), 307-310 (2002-11-06)
Long-term thionamide treatment is considered one of the main resources for Graves' hyperthyroidism. Although a 54.2% remission rate in patients so treated in Mexico was previously reported, most articles have shown a wide variation over time. In the present article
K E Hill et al.
New Zealand veterinary journal, 62(4), 208-213 (2013-12-20)
To determine the pharmacokinetics of a novel lipophilic formulation of transdermal methimazole compared to oral carbimazole. Healthy cats received 5 mg carbimazole orally every 12 hours for 13 treatments (n=6), then received transdermal methimazole (n=5) at a dose of 5 mg, then
M Clementi et al.
American journal of medical genetics, 83(1), 43-46 (1999-03-17)
We report on a further case of congenital anomalies in a child exposed to methimazole during the first trimester of pregnancy (from first to seventh gestational week), and define a specific malformation pattern related to prenatal methimazole exposure and consisting
Glaecir Roseni Mundstock Dias et al.
Neuroendocrinology, 100(1), 45-59 (2014-07-12)
Cellular antioxidant signaling can be altered either by thyroid disturbances or by selenium status. To investigate whether or not dietary diphenyl diselenide can modify the expression of genes of antioxidant enzymes and endpoint markers of oxidative stress under hypothyroid conditions.
P Barbero et al.
American journal of medical genetics. Part A, 129A(1), 83-86 (2004-07-22)
We report three patients with bilateral choanal atresia in children prenatally exposed to methimazole (MMI) in order to define a MMI embryopathy clinical pattern. The combination of choanal atresia and other specific malformations strongly resembles previously reported patients exposed to

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