tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate

Also known as: 2,9-Diazaspiro[5.5]undecane-9-carboxylic acid tert-butyl ester, 9-Boc-2,9-diazaspiro[5.5]undecane, tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate, 2-Methyl-2-propanyl 2,9-diazaspiro[5.5]undecane-9-carboxylate, 2,9-Diazaspiro[5.5]undecan-9-carboxylic acid tert-butyl ester

tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate (CAS 1023595-19-8) is a compound in the Organic Acids category listed in the Jingsj chemical database. It has the molecular formula C14H26N2O2 and a molecular weight of 254.368 g/mol. Key properties include a boiling point of 354.1±35.0 °C at 760 mmHg, a density of 1.1±0.1 g/cm3 and a flash point of 168.0±25.9 °C. No supplier offers are currently listed; request a quote. Record last updated Aug 21, 2026.

CAS No.: 1023595-19-8
Jingsj CID: J-1115365-4
Molecular Formula: C₁₄H₂₆N₂O₂
Molecular Weight: 254.368 g/mol
Category: Organic Acids
Last updated: 8/21/2026

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Physicochemical Properties

Boiling Point	354.1±35.0 °C at 760 mmHg
Density	1.1±0.1 g/cm3
Flash Point	168.0±25.9 °C
Exact Mass	254.199432
PSA	41.57000
LogP	2.02
Vapor Pressure	0.0±0.8 mmHg at 25°C
Refractive Index	1.513
Storage Conditions	2-8°C

Customs & Trade Information

HS Code	2933990090
Summary	2933990090. heterocyclic compounds with nitrogen hetero-atom(s) only. 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 2,9-diazaspiro[5.5]undecane-9-carboxylate?

The CAS number of tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate is 1023595-19-8.

What are the molecular formula and molecular weight of tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate?

tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate has molecular formula C14H26N2O2 and molecular weight 254.368 g/mol.

What are the upstream and downstream products of tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate?

For tert-Butyl 2,9-diazaspiro[5.5]undecane-9-carboxylate, Upstream Products: tert-Butyl 4-(hydroxymethyl)piperidine-1-carboxylate, tert-Butyl 4-formylpiperidine-1-carboxylate, 1-tert-Butyl 4-methyl piperidine-1,4-dicarboxylate.

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 2,9-diazaspiro[5.5]undecane-9-carboxylate (CAS 1023595-19-8)". Jingsj Chemical Database. https://www.jingsj.com/compound/J-1115365-4 (accessed 2026-11-09).

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