tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate

叔丁基 2-氧代-1-氧杂-8-氮杂螺[4.5]癸烷-8-羧酸酯

Also known as: 1,1-dimethylethyl 1-oxa-2-oxo-8-azaspiro[4.5]decane-8-carboxylate, 2-Methyl-2-propanyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate, 8-Boc-1-oxa-8-azaspiro[4.5]decan-2-one, 8-Boc-2-oxo-1-oxa-8-azaspiro[4.5]decane, tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate, tert-Butyl-2-oxo-1-oxa-8-azaspiro[4.5]decan-8-carboxylat

tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate (CAS 301226-27-7) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C13H21NO4 and a molecular weight of 255.310 g/mol. It is also known as 1,1-dimethylethyl 1-oxa-2-oxo-8-azaspiro[4.5]decane-8-carboxylate, 2-Methyl-2-propanyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate and 8-Boc-1-oxa-8-azaspiro[4.5]decan-2-one. Key properties include a boiling point of 399.6±35.0 °C at 760 mmHg, a density of 1.2±0.1 g/cm3 and a flash point of 195.5±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.
301226-27-7
Jingsj CID
J-1003035-2
Molecular Formula
C13H21NO4
Chinese Name
叔丁基 2-氧代-1-氧杂-8-氮杂螺[4.5]癸烷-8-羧酸酯
Molecular Weight
255.310 g/mol
Category
Organic Acids
Last updated
8/21/2026

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Physicochemical Properties

Boiling Point399.6±35.0 °C at 760 mmHg
Density1.2±0.1 g/cm3
Flash Point195.5±25.9 °C
Exact Mass255.147064
PSA55.84000
LogP0.58
Vapor Pressure0.0±0.9 mmHg at 25°C
Refractive Index1.511

Customs & Trade Information

HS Code2934999090
Summary2934999090. other heterocyclic compounds. 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 tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate?

The CAS number of tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate is 301226-27-7.

What are the molecular formula and molecular weight of tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate?

tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate has molecular formula C13H21NO4 and molecular weight 255.310 g/mol.

What are the upstream and downstream products of tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate?

For tert-Butyl 2-oxo-1-oxa-8-azaspiro[4.5]decane-8-carboxylate, Upstream Products: tert-Butyl 4-(3-ethoxy-3-oxopropyl)-4-hydroxypiperidine-1-carboxylate, tert-butyl 1-oxo-7-azaspiro[3.5]nonane-7-carboxylate, tert-butyl 4-(3-ethoxy-3-oxoprop-1-yn-1-yl)-4-hydroxypiperidine-1-carboxylate; Downstream Products: 1-Oxa-8-azaspiro[4.5]decane, tert-butyl 4-hydroxy-4-(3-hydroxypropyl)piperidine-1-carboxylate.

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-1-oxa-8-azaspiro[4.5]decane-8-carboxylate (CAS 301226-27-7)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1003035-2 (accessed 2026-10-28).

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