1,2-Diisonicotinoylhydrazine

Also known as: 1,2-Bis(4-pyridinylcarbonyl)hydrazine, 1,2-Bis(4-pyridylcarbonyl)hydrazine, Bis(4-pyridoyl)hydrazine, N,N'-Diisonicotinoylhydrazine, N,N'-bis(4-picolinoyl)hydrazine, N,N'-bis(isonicotinoyl)hydrazine, N'-(pyridine-4-carbonyl)pyridine-4-carbohydrazide, 4-Pyridinecarboxylic acid 2-(4-pyridinylcarbonyl)hydrazide, Isoniazid Impurity D

1,2-Diisonicotinoylhydrazine (CAS 4329-75-3) is a compound in the Organic Bases category listed in the Jingsj chemical database. It has the molecular formula C12H10N4O2 and a molecular weight of 242.23300 g/mol. Key properties include a boiling point of 551.5ºC at 760 mmHg and a density of 1.313g/cm3. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 4329-75-3
Jingsj CID: J-15880-5
Molecular Formula: C₁₂H₁₀N₄O₂
Molecular Weight: 242.23300 g/mol
Category: Organic Bases
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	551.5ºC at 760 mmHg
Density	1.313g/cm3
Exact Mass	242.08000
PSA	83.98000
LogP	1.33320
Refractive Index	1.757

Customs & Trade Information

HS Code	2933399090
Summary	2933399090. other compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure. 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 1,2-Diisonicotinoylhydrazine?

The CAS number of 1,2-Diisonicotinoylhydrazine is 4329-75-3.

What are the molecular formula and molecular weight of 1,2-Diisonicotinoylhydrazine?

1,2-Diisonicotinoylhydrazine has molecular formula C12H10N4O2 and molecular weight 242.23300 g/mol.

What are the upstream and downstream products of 1,2-Diisonicotinoylhydrazine?

For 1,2-Diisonicotinoylhydrazine, Upstream Products: Isoniazid, 3-amino-2-butenenitrile, Isonicotinoyl chloride; Downstream Products: 4-Pyridinemethanol, 2,5-Bis(4-pyridyl)-1,3,4-oxadiazole, 2,5-Bis(4-pyridyl)-1,3,4-thiadiazole.

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

Last updated: 8/21/2026

How to cite: Jingsj. "1,2-Diisonicotinoylhydrazine (CAS 4329-75-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-15880-5 (accessed 2026-11-09).

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