β-(2-Thienyl)-D-alanine

β-(2-噻吩基)-D-丙氨酸

Also known as: 2-Thienylalanine, 2-Thiophenealanine, 3-(2-Thienyl)-D-alanine, D-2-Thienylalanine, alpha-Amino-2-thiophenepropionic acid, α-Amino-2-thiophenepropionic acid, β-2-Thienylalanine

β-(2-Thienyl)-D-alanine (CAS 139-86-6) 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-Thienylalanine, 2-Thiophenealanine and 3-(2-Thienyl)-D-alanine. Key properties include a boiling point of 373.776ºC at 760 mmHg, a density of 1.355g/cm3 and a flash point of 179.853ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
139-86-6
Jingsj CID
J-1506039-4
Molecular Formula
C7H9NO2S
Chinese Name
β-(2-噻吩基)-D-丙氨酸
Molecular Weight
171.21700 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point373.776ºC at 760 mmHg
Density1.355g/cm3
Flash Point179.853ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of β-(2-Thienyl)-D-alanine?

The CAS number of β-(2-Thienyl)-D-alanine is 139-86-6.

What are the molecular formula and molecular weight of β-(2-Thienyl)-D-alanine?

β-(2-Thienyl)-D-alanine has molecular formula C7H9NO2S and molecular weight 171.21700 g/mol.

Is β-(2-Thienyl)-D-alanine hazardous?

β-(2-Thienyl)-D-alanine has GHS signal word Warning.

Data compiled from public chemical databases and supplier catalogs; supplier offers are provided by suppliers.

Last updated:

How to cite: Jingsj. "β-(2-Thienyl)-D-alanine (CAS 139-86-6)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1506039-4 (accessed 2026-10-25).

Data for reference only; verify specifications, grades and regulatory status with suppliers before purchase.