tert-Butyl 2-(hydroxyimino)-3-oxobutanoate

Also known as: 2-Hydroxyimino-3-oxobutyric acid tert-butyl ester, 2-(Hydroxyimino)acetoacetic acid tert-butyl ester, 2-(Hydroxyimino)-3-oxobutanoic acid tert-butyl ester, 2-Methyl-2-propanyl 2-(hydroxyimino)-3-oxobutanoate, (Z)-tert-Butyl 2-(hydroxyimino)-3-oxobutanoate, tert-Butyl 2-hydroximino-3-oxobutyrate, tert-Butyl 2-(oxyimino)-3-oxobutyrate, t-Butyl hydroximinoacetoacetate, t-Butyl oximino acetoacetate, 2-hydroxyimino-3-oxobutyric acid tert-butyl ester, Sunitinib Impurity 43

tert-Butyl 2-(hydroxyimino)-3-oxobutanoate (CAS 14352-65-9) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C8H13NO4 and a molecular weight of 187.19300 g/mol. Key properties include a boiling point of 281.084ºC at 760 mmHg, a density of 1.126g/cm3 and a flash point of 123.795ºC. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 14352-65-9
Jingsj CID: J-1439328-3
Molecular Formula: C₈H₁₃NO₄
Molecular Weight: 187.19300 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	281.084ºC at 760 mmHg
Density	1.126g/cm3
Flash Point	123.795ºC
Exact Mass	187.08400
PSA	75.96000
LogP	0.74730
Vapor Pressure	0mmHg at 25°C
Refractive Index	1.468

Customs & Trade Information

HS Code	2928000090
Summary	2928000090 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 tert-Butyl 2-(hydroxyimino)-3-oxobutanoate?

The CAS number of tert-Butyl 2-(hydroxyimino)-3-oxobutanoate is 14352-65-9.

What are the molecular formula and molecular weight of tert-Butyl 2-(hydroxyimino)-3-oxobutanoate?

tert-Butyl 2-(hydroxyimino)-3-oxobutanoate has molecular formula C8H13NO4 and molecular weight 187.19300 g/mol.

What are the upstream and downstream products of tert-Butyl 2-(hydroxyimino)-3-oxobutanoate?

For tert-Butyl 2-(hydroxyimino)-3-oxobutanoate, Upstream Products: tert-Butyl acetoacetate; Downstream Products: 2-tert-Butyl 4-ethyl 3,5-dimethyl-1H-pyrrole-2,4-dicarboxylate, tert-butyl 2,3-dioxobutanoate, tert-butyl 4-((2-(diethylamino)ethyl)carbamoyl)-3,5-dimethyl-1H-pyrrole-2-carboxylate.

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. "tert-Butyl 2-(hydroxyimino)-3-oxobutanoate (CAS 14352-65-9)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1439328-3 (accessed 2026-11-09).

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