3-(2-Thienyl)-DL-alanine
3-(2-噻吩基)-DL-丙氨酸
Also known as: 2-Thienyl-DL-alanine, DL-2-Thienylalanine, β-(2-Thienyl)-DL-alanine, 2-Amino-3-(2-thienyl)propionic acid, DL-2-Amino-3-(2-thienyl)propanoic acid, H-3-DL-Ala(2-thienyl)-OH, H-β-(2-Thienyl)-DL-Ala-OH, DL-β-(2-Thienyl)alanine, EINECS 217-967-1, MFCD00005459
3-(2-Thienyl)-DL-alanine (CAS 2021-58-1) 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 171.217 g/mol. It is also known as 2-Thienyl-DL-alanine, DL-2-Thienylalanine and β-(2-Thienyl)-DL-alanine. Key properties include a melting point of 275-277 °C (dec.)(lit.), a boiling point of 311.3±32.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 142.1±25.1 °C. It is classified under GHS with signal word Warning and hazard statements H315 — Causes skin irritation, H319 — Causes serious eye irritation and H335 — May cause respiratory irritation. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.
- CAS No.
- 2021-58-1
- Jingsj CID
- J-27458-6
- Molecular Formula
- C7H9NO2S
- Chinese Name
- 3-(2-噻吩基)-DL-丙氨酸
- Molecular Weight
- 171.217 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 275-277 °C (dec.)(lit.) |
|---|---|
| Boiling Point | 311.3±32.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 142.1±25.1 °C |
| Exact Mass | 171.035400 |
| PSA | 91.56000 |
| LogP | 0.97 |
| Vapor Pressure | 0.0±0.7 mmHg at 25°C |
| Refractive Index | 1.598 |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. Luckose F, et al. Effects of amino acid derivatives on physical, mental, and physiological activities. Crit Rev Food Sci Nutr. 2015;55(13):1793-1090. |
|---|
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 3-(2-Thienyl)-DL-alanine?
The CAS number of 3-(2-Thienyl)-DL-alanine is 2021-58-1.
What are the molecular formula and molecular weight of 3-(2-Thienyl)-DL-alanine?
3-(2-Thienyl)-DL-alanine has molecular formula C7H9NO2S and molecular weight 171.217 g/mol.
Is 3-(2-Thienyl)-DL-alanine hazardous?
3-(2-Thienyl)-DL-alanine has GHS signal word Warning and hazard statements H315 — Causes skin irritation; H319 — Causes serious eye irritation; H335 — May cause respiratory irritation.
What are the upstream and downstream products of 3-(2-Thienyl)-DL-alanine?
For 3-(2-Thienyl)-DL-alanine, Upstream Products: 2-Thiophenecarboxaldehyde, 2-(Chloromethyl)thiophene, 2-Thiophenemethanol; Downstream Products: Boc-3-(2-thienyl)-L-alanine, Boc-D-3-(2-thienyl)-alanine, 3-(2-Thienyl)-D-alanine.
Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "3-(2-Thienyl)-DL-alanine (CAS 2021-58-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-27458-6 (accessed 2026-10-28).
Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.