4-Ethyl-2-methylthiazole-5-carboxylic acid
2-甲基-4-乙基-5-噻唑羧酸
Also known as: 2-methyl-4-ethyl-5-thiazolecarboxylic acid, 2-methyl-4-ethyl-thiazole-5-carboxylic acid, 4-ethyl-2-methyl-1,3-thiazole-5-carboxylic acid, 5-Thiazolecarboxylic acid, 4-ethyl-2-methyl-
4-Ethyl-2-methylthiazole-5-carboxylic acid (CAS 119778-44-8) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H9NO2S and a molecular weight of 171.21700 g/mol. It is also known as 2-methyl-4-ethyl-5-thiazolecarboxylic acid, 2-methyl-4-ethyl-thiazole-5-carboxylic acid and 4-ethyl-2-methyl-1,3-thiazole-5-carboxylic acid. Key properties include a boiling point of 299.6ºC at 760 mmHg, a density of 1.28g/cm3 and a flash point of 135ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 119778-44-8
- Jingsj CID
- J-1352545-5
- Molecular Formula
- C7H9NO2S
- Chinese Name
- 2-甲基-4-乙基-5-噻唑羧酸
- Molecular Weight
- 171.21700 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 299.6ºC at 760 mmHg |
|---|---|
| Density | 1.28g/cm3 |
| Flash Point | 135ºC |
Frequently Asked Questions
What is the CAS number of 4-Ethyl-2-methylthiazole-5-carboxylic acid?
The CAS number of 4-Ethyl-2-methylthiazole-5-carboxylic acid is 119778-44-8.
What are the molecular formula and molecular weight of 4-Ethyl-2-methylthiazole-5-carboxylic acid?
4-Ethyl-2-methylthiazole-5-carboxylic acid has molecular formula C7H9NO2S and molecular weight 171.21700 g/mol.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "4-Ethyl-2-methylthiazole-5-carboxylic acid (CAS 119778-44-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1352545-5 (accessed 2026-10-22).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.