Methimazole
Also known as: Thiamazole, Tapazole, 2-Mercapto-1-methylimidazole, 1-Methyl-1H-imidazole-2-thiol, 1-Methyl-2-mercaptoimidazole, 1-Methylimidazole-2-thione, METHIMAZOL, Methiazole, Mercazole, Metazolo, Favistan, Basolan, 1-Methyl-1,3-dihydro-2H-imidazole-2-thione, 1-Methyl-2-mercapto-1H-imidazole, 1-Methyl-4-imidazoline-2-thione, 3-Methyl-imidazole-2-thione, Thimazol, Thymidazole, Merkastan, Metizol
Methimazole (CAS 60-56-0) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C4H6N2S and a molecular weight of 114.169 g/mol. Key properties include a melting point of 144-147 °C(lit.), a boiling point of 280.0±9.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 123.1±18.7 °C. It is classified under GHS with signal word Warning and hazard statements H317 — May cause an allergic skin reaction and H361 — Suspected of damaging fertility or the unborn child. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 60-56-0
- Jingsj CID
- J-11574-8
- Molecular Formula
- C4H6N2S
- Molecular Weight
- 114.169 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 144-147 °C(lit.) |
|---|---|
| Boiling Point | 280.0±9.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 123.1±18.7 °C |
| Exact Mass | 114.025169 |
| PSA | 56.62000 |
| LogP | -0.34 |
| Vapor Pressure | 0.0±0.6 mmHg at 25°C |
| Refractive Index | 1.633 |
| Additional Property | soluble |
GHS Safety & Compliance
- H317 — May cause an allergic skin reaction
- H361 — Suspected of damaging fertility or the unborn child
Activity & Biological Data
| Additional Information | [1]. Nakamura H, et al. Comparison of methimazole and propylthiouracil in patients with hyperthyroidism caused by Graves' disease. J Clin Endocrinol Metab. 2007 Jun;92(6):2157-62. Epub 2007 Mar 27. [2]. Crescioli C, et al. Methimazole inhibits CXC chemokine ligand 10 secretion in human thyrocytes. J Endocrinol. 2007 Oct;195(1):145-55. |
|---|
Customs & Trade Information
| HS Code | 2933290090 |
|---|---|
| Summary | 2933290090. other compounds containing an unfused imidazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of Methimazole?
The CAS number of Methimazole is 60-56-0.
What are the molecular formula and molecular weight of Methimazole?
Methimazole has molecular formula C4H6N2S and molecular weight 114.169 g/mol.
Is Methimazole hazardous?
Methimazole has GHS signal word Warning and hazard statements H317 — May cause an allergic skin reaction; H361 — Suspected of damaging fertility or the unborn child.
What are the upstream and downstream products of Methimazole?
For Methimazole, Upstream Products: isothiocyanic acid, 2,2-diethoxy-N-methylethanamine, Potassium thiocyanate; Downstream Products: 1-Methyl-1H-imidazole-2-sulfonyl chloride, 1-methylimidazole, 2-Bromo-1-methyl-1H-imidazole.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methimazole (CAS 60-56-0)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-11574-8 (accessed 2026-11-06).
Data for reference only; verify product details with suppliers before purchase.