Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate
Also known as: 2-Thiophenecarboxylic acid, 3-hydroxy-5-methyl-, methyl ester, 3-Hydroxy-5-methyl-2-thiophenecarboxylic acid methyl ester, Methyl 3-hydroxy-5-methylthiophene-2-carboxylate
Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate (CAS 5556-22-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C7H8O3S and a molecular weight of 172.202 g/mol. Key properties include a boiling point of 256.4±35.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 108.9±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 5556-22-9
- Jingsj CID
- J-853562-4
- Molecular Formula
- C7H8O3S
- Molecular Weight
- 172.202 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Boiling Point | 256.4±35.0 °C at 760 mmHg |
|---|---|
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 108.9±25.9 °C |
| Exact Mass | 172.019409 |
| PSA | 74.77000 |
| LogP | 2.30 |
| Vapor Pressure | 0.0±0.5 mmHg at 25°C |
| Refractive Index | 1.570 |
| Storage Conditions | 2-8°C |
Customs & Trade Information
| HS Code | 2934999090 |
|---|---|
| Summary | 2934999090. other heterocyclic compounds. 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 Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate?
The CAS number of Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate is 5556-22-9.
What are the molecular formula and molecular weight of Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate?
Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate has molecular formula C7H8O3S and molecular weight 172.202 g/mol.
What are the upstream and downstream products of Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate?
For Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate, Upstream Products: Methanethiol, Methyl 2-chloro-3-oxo-2,3-dihydrothiophene-2-carboxylate, Ethyl acetoacetate; Downstream Products: methyl 3-methoxy-5-methylthiophene-2-carboxylate, Methyl 4-bromo-3-methoxy-5-methylthiophene-2-carboxylate, methyl 4-bromo-3-hydroxy-5-methylthiophene-2-carboxylate.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "Methyl 3-hydroxy-5-methyl-2-thiophenecarboxylate (CAS 5556-22-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-853562-4 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.