2,2'-Dithiodipyridine
Also known as: 2,2'-Dipyridyl disulfide, 2,2'-Dipyridinyl disulfide, 1,2-Di(pyridin-2-yl)disulfane, 1,2-Di(pyridin-2-yl)disulfide, bis(2-pyridinyl) disulfide, di(2-pyridyl) disulfide, 2-pyridinyl disulfide, Aldrithiol-2, Aldrithiol, 2-(pyridin-2-yldisulfanyl)pyridine, 2,2'-Disulfanediyldipyridine, 2,2'-Dithiobispyridine, Pyridine, 2,2'-dithiobis-
2,2'-Dithiodipyridine (CAS 2127-03-9) is a compound in the Pharma Intermediates category listed in the Jingsj chemical database. It has the molecular formula C10H8N2S2 and a molecular weight of 220.31 g/mol. Key properties include a melting point of 56-58 °C(lit.), a boiling point of 356.1±17.0 °C at 760 mmHg, a density of 1.3±0.1 g/cm3 and a flash point of 169.2±20.9 °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.
- 2127-03-9
- Jingsj CID
- J-932424-7
- Molecular Formula
- C10H8N2S2
- Molecular Weight
- 220.31 g/mol
- Category
- Pharma Intermediates
- Last updated
- 8/21/2026
No offers for this compound yet.
Request a quotePhysicochemical Properties
| Melting Point | 56-58 °C(lit.) |
|---|---|
| Boiling Point | 356.1±17.0 °C at 760 mmHg |
| Density | 1.3±0.1 g/cm3 |
| Flash Point | 169.2±20.9 °C |
| Exact Mass | 220.012894 |
| PSA | 76.38000 |
| LogP | 2.53 |
| Vapor Pressure | 0.0±0.8 mmHg at 25°C |
| Refractive Index | 1.694 |
| Additional Property | 5 g/L (20 ºC) |
GHS Safety & Compliance
- H315 — Causes skin irritation
- H319 — Causes serious eye irritation
- H335 — May cause respiratory irritation
Activity & Biological Data
| Additional Information | [1]. K Maruyama, et al. 2,2'-Bispyridyl disulfide rapidly induces intramolecular disulfide bonds in peptides. Peptides. 1999;20(7):881-4. |
|---|
Frequently Asked Questions
What is the CAS number of 2,2'-Dithiodipyridine?
The CAS number of 2,2'-Dithiodipyridine is 2127-03-9.
What are the molecular formula and molecular weight of 2,2'-Dithiodipyridine?
2,2'-Dithiodipyridine has molecular formula C10H8N2S2 and molecular weight 220.31 g/mol.
Is 2,2'-Dithiodipyridine hazardous?
2,2'-Dithiodipyridine 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 2,2'-Dithiodipyridine?
For 2,2'-Dithiodipyridine, Upstream Products: 2-Mercaptopyridine, Sodium chlorite, 2-Bromopyridine; Downstream Products: 2-Mercaptopyridine, 2-Phenoxypyridine, 2-Naphthalenethiol.
Data compiled from public chemical databases such as PubChem and supplier catalogs; supplier offers are provided by suppliers.
Last updated:
How to cite: Jingsj. "2,2'-Dithiodipyridine (CAS 2127-03-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-932424-7 (accessed 2026-11-09).
Data for reference only; verify product details with suppliers before purchase.