6,6'-Dithiodinicotinic acid

6,6'-二硫二烟酸

Also known as: 6,6'-Dithiobis(3-pyridinecarboxylic acid), 6,6'-Dithiodinicotinic Acid, 3-Pyridinecarboxylic acid, 6,6'-dithiobis-, 6-[(5-Carboxy-2-pyridyl)dithio]nicotinic acid, 6-[(5-carboxypyridin-2-yl)disulfanyl]pyridine-3-carboxylic acid, Bis[3-carboxypyridine] 6,6'-disulfide, Carboxypyridine disulfide, CPDS

6,6'-Dithiodinicotinic acid (CAS 15658-35-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C12H8N2O4S2 and a molecular weight of 308.33 g/mol. It is also known as 6,6'-Dithiobis(3-pyridinecarboxylic acid), 6,6'-Dithiodinicotinic Acid and 3-Pyridinecarboxylic acid, 6,6'-dithiobis-. Key properties include a melting point of 263-265 °C(lit.), a boiling point of 584.2ºC at 760mmHg, a density of 1.66g/cm3 and a flash point of 307.1ºC. GHS signal word: Warning. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
15658-35-2
Jingsj CID
J-35074-9
Molecular Formula
C12H8N2O4S2
Chinese Name
6,6'-二硫二烟酸
Molecular Weight
308.33 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point263-265 °C(lit.)
Boiling Point584.2ºC at 760mmHg
Density1.66g/cm3
Flash Point307.1ºC

GHS Safety & Compliance

IrritantSignal word: Warning

Frequently Asked Questions

What is the CAS number of 6,6'-Dithiodinicotinic acid?

The CAS number of 6,6'-Dithiodinicotinic acid is 15658-35-2.

What are the molecular formula and molecular weight of 6,6'-Dithiodinicotinic acid?

6,6'-Dithiodinicotinic acid has molecular formula C12H8N2O4S2 and molecular weight 308.33 g/mol.

Is 6,6'-Dithiodinicotinic acid hazardous?

6,6'-Dithiodinicotinic acid 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. "6,6'-Dithiodinicotinic acid (CAS 15658-35-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-35074-9 (accessed 2026-10-22).

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