2-Isobutylthiazole
2-异丁基噻唑
Also known as: 2-isobutyl thiazole, 2-(2-Methylpropyl)-1,3-thiazole, 2-(2-Methylpropyl)-thiazole, 2-(2-methylpropyl)thiazole, 2-ISOBUTYL-1,3-THIAZOLE, 2-Isobutyl-1,3-thiazole, 2-i-butylthiazole, isobutylthiazole, FEMA 3134, FEMA NUMBER 3134, MFCD00005334, THIAZOLE, 2-ISOBUTYL, Thiazole, 2-(2-methylpropyl)-, "TOMATO LEAF" THIAZOLE, 'TOMATO LEAF' THIAZOLE
2-Isobutylthiazole (CAS 18640-74-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H11NS and a molecular weight of 141.234 g/mol. It is also known as 2-isobutyl thiazole, 2-(2-Methylpropyl)-1,3-thiazole and 2-(2-Methylpropyl)-thiazole. Key properties include a boiling point of 182.7±9.0 °C at 760 mmHg, a density of 1.0±0.1 g/cm3 and a flash point of 57.8±0.0 °C. It is classified under GHS with signal word Warning and hazard statements H226 — Flammable liquid and vapour, H315 — Causes skin irritation and H319 — Causes serious eye irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 18640-74-9
- Jingsj CID
- J-38719-8
- Molecular Formula
- C7H11NS
- Chinese Name
- 2-异丁基噻唑
- Molecular Weight
- 141.234 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 182.7±9.0 °C at 760 mmHg |
|---|---|
| Density | 1.0±0.1 g/cm3 |
| Flash Point | 57.8±0.0 °C |
| Exact Mass | 141.061218 |
| PSA | 41.13000 |
| LogP | 2.51 |
| Vapor Pressure | 1.1±0.3 mmHg at 25°C |
| Refractive Index | 1.512 |
GHS Safety & Compliance
- H226 — Flammable liquid and vapour
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Customs & Trade Information
| HS Code | 2934100090 |
|---|---|
| Summary | 2934100090 other compounds containing an unfused thiazole ring (whether or not hydrogenated) in the structure VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0% |
Frequently Asked Questions
What is the CAS number of 2-Isobutylthiazole?
The CAS number of 2-Isobutylthiazole is 18640-74-9.
What are the molecular formula and molecular weight of 2-Isobutylthiazole?
2-Isobutylthiazole has molecular formula C7H11NS and molecular weight 141.234 g/mol.
Is 2-Isobutylthiazole hazardous?
2-Isobutylthiazole has GHS signal word Warning and hazard statements H226 — Flammable liquid and vapour; H315 — Causes skin irritation; H319 — Causes serious eye irritation.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2-Isobutylthiazole (CAS 18640-74-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-38719-8 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.