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3-(2-Pyridyldithio)propanoic acid

Also known as: 3-(2-Pyridyldithio)propionic acid, 2-Carboxyethyl 2-pyridyl disulfide, 2-Carboxyethyl pyridin-2-yl disulfide, 3-(Pyridin-2-yldisulfanyl)propanoic acid, 3-(Pyridin-2-yldithio)propanoic acid, SPDP-COOH, 3-(2-Pyridinyldithio)propanoic acid, 3-(2-Pyridyldithio)propionic acid-HCl (PDPA-HCl)

3-(2-Pyridyldithio)propanoic acid (CAS 68617-64-1) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C8H9NO2S2 and a molecular weight of 215.29300 g/mol. Key property: a melting point of 68-71C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
68617-64-1
Jingsj CID
J-1957065-1
Molecular Formula
C8H9NO2S2
Molecular Weight
215.29300 g/mol
Category
Pharma Intermediates
Last updated
8/21/2026

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Physicochemical Properties

Melting Point68-71C
Exact Mass215.00700
PSA100.79000
LogP2.29660
Storage Conditions-20°C

Activity & Biological Data

TargetAlkyl-Chain
Additional Information[1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562

Frequently Asked Questions

What is the CAS number of 3-(2-Pyridyldithio)propanoic acid?

The CAS number of 3-(2-Pyridyldithio)propanoic acid is 68617-64-1.

What are the molecular formula and molecular weight of 3-(2-Pyridyldithio)propanoic acid?

3-(2-Pyridyldithio)propanoic acid has molecular formula C8H9NO2S2 and molecular weight 215.29300 g/mol.

What are the upstream and downstream products of 3-(2-Pyridyldithio)propanoic acid?

For 3-(2-Pyridyldithio)propanoic acid, Upstream Products: 2,2'-Dithiodipyridine, 3-Mercaptopropionic acid, 2-Mercaptopyridine; Downstream Products: N-Succinimidyl 3-(2-pyridyldithio)propionate.

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

Last updated:

How to cite: Jingsj. "3-(2-Pyridyldithio)propanoic acid (CAS 68617-64-1)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1957065-1 (accessed 2026-11-09).

Data for reference only; verify product details with suppliers before purchase.