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2-(2-phenylhydrazinylidene)propanedioic acid

Also known as: 2-(PHENYLHYDRAZONO)MALONIC ACID, 2-(2-PHENYLHYDRAZONO)MALONIC ACID, Ketomalonic acid phenylhydrazone, Mesoxalsaeure-phenylhydrazon, Mesoxalic acid phenylhydrazone, Phenylhydrazono-malonic acid, Phenylhydrazono-malonsaeure, Propanedioic acid, 2-(2-phenylhydrazinylidene)-

2-(2-phenylhydrazinylidene)propanedioic acid (CAS 40885-82-3) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C9H8N2O4 and a molecular weight of 208.17100 g/mol. Key properties include a boiling point of 439.3ºC at 760 mmHg, a density of 1.41g/cm3 and a flash point of 219.5ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
40885-82-3
Jingsj CID
J-1013743-6
Molecular Formula
C9H8N2O4
Molecular Weight
208.17100 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point439.3ºC at 760 mmHg
Density1.41g/cm3
Flash Point219.5ºC
Exact Mass208.04800
PSA98.99000
LogP0.69670
Refractive Index1.607

Customs & Trade Information

HS Code2928000090
Summary2928000090 other organic derivatives of hydrazine or of hydroxylamine VAT:17.0% Tax rebate rate:9.0% Supervision conditions:none MFN tariff:6.5% General tariff:20.0%

Frequently Asked Questions

What is the CAS number of 2-(2-phenylhydrazinylidene)propanedioic acid?

The CAS number of 2-(2-phenylhydrazinylidene)propanedioic acid is 40885-82-3.

What are the molecular formula and molecular weight of 2-(2-phenylhydrazinylidene)propanedioic acid?

2-(2-phenylhydrazinylidene)propanedioic acid has molecular formula C9H8N2O4 and molecular weight 208.17100 g/mol.

What are the upstream and downstream products of 2-(2-phenylhydrazinylidene)propanedioic acid?

For 2-(2-phenylhydrazinylidene)propanedioic acid, Upstream Products: Ketomalonic acid monohydrate, Phenylhydrazine, Oxomalonic acid; Downstream Products: Aminomalonic acid, Dimethyl 2-(2-phenylhydrazono)malonate.

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-phenylhydrazinylidene)propanedioic acid (CAS 40885-82-3)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1013743-6 (accessed 2026-11-09).

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