9-Oxo-3-azaspiro[5.5]undecane-3-carboxylic acid tert-butyl ester
[CAS# 873924-08-4]

Identification

• Name: 9-Oxo-3-azaspiro[5.5]undecane-3-carboxylic acid tert-butyl ester
• Synonyms: tert-Butyl 9-oxo-3-azaspiro[5.5]undecan-3-carboxylate
• Molecular Formula: C₁₅H₂₅NO₃
• Molecular Weight: 267.36
• CAS Registry Number: 873924-08-4
• EC Number: 847-093-1

Properties

• Solubility: Slightly soluble (2.4 g/L) (25 °C), Calc.^*
• Density: 1.08±0.1 g/cm³ (20 °C 760 Torr), Calc.^*
• Melting point: 70-73 °C^**

^* Calculated using Advanced Chemistry Development (ACD/Labs) Software V11.02 (©1994-2016 ACD/Labs)

^** Froehlich, Johannes

Safety Data

Hazard Classification

Hazard	Class	Category Code	Hazard Statement
Skin irritation	Skin Irrit.	2	H315
Specific target organ toxicity - single exposure	STOT SE	3	H335
Acute toxicity	Acute Tox.	4	H302
Eye irritation	Eye Irrit.	2A	H319