tert-butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate

2-氧代-7-氮杂螺[3.5]壬烷-7-甲酸叔丁酯

Also known as: 2-oxo-7-azaspiro[3.5]nonane-7-carboxylic acid tert-butyl ester, 7-Boc-2-oxo-7-azaspiro[3.5]nonane, 7-tert-butoxycarbonyl-7-azaspiro[3.5]nonan-2-one, N-Boc-2-oxo-7-azaspiro[3.5]nonane

tert-butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate (CAS 203661-69-2) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C10H12F3NO3 and a molecular weight of 251.202 g/mol. It is also known as 2-oxo-7-azaspiro[3.5]nonane-7-carboxylic acid tert-butyl ester, 7-Boc-2-oxo-7-azaspiro[3.5]nonane and 7-tert-butoxycarbonyl-7-azaspiro[3.5]nonan-2-one. Key properties include a melting point of 55-56°C, a boiling point of 274.2±40.0 °C at 760 mmHg, a density of 1.4±0.1 g/cm3 and a flash point of 119.7±27.3 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
203661-69-2
Jingsj CID
J-1071929-9
Molecular Formula
C10H12F3NO3
Chinese Name
2-氧代-7-氮杂螺[3.5]壬烷-7-甲酸叔丁酯
Molecular Weight
251.202 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Melting Point55-56°C
Boiling Point274.2±40.0 °C at 760 mmHg
Density1.4±0.1 g/cm3
Flash Point119.7±27.3 °C

Frequently Asked Questions

What is the CAS number of tert-butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate?

The CAS number of tert-butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate is 203661-69-2.

What are the molecular formula and molecular weight of tert-butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate?

tert-butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate has molecular formula C10H12F3NO3 and molecular weight 251.202 g/mol.

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

Last updated:

How to cite: Jingsj. "tert-butyl 2-oxo-7-azaspiro[3.5]nonane-7-carboxylate (CAS 203661-69-2)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1071929-9 (accessed 2026-10-25).

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