8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid
Chemical Name: 8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid
Molecular Formula: C₁₂H₂₀NO₅
CAS Number: 71792-73-7
A stable nitroxyl radical with unique spiro structure and carboxylic acid functionality. Ideal for bioconjugation, spin labeling, and analytical applications requiring robust paramagnetic properties. VUP Lab Researched quality ensures reliable performance.

Technical Specifications
Discover the technical specifications of our 8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid products.
Chemical Identity
| Chemical Name | 8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid |
| Synonyms | Spiro-TEMPO-acid, Spiro-TEMPO carboxylic acid |
| CAS Number | 71792-73-7 |
| EC Number | |
| Molecular Formula | C₁₂H₂₀NO₅ |
| Molecular Weight | 258.29 g/mol |

VUP Specifications (Standard Grade)
| Property | Specification |
|---|---|
| Appearance | Orange to red crystalline solid |
| Purity | min. 95.0 % wt |
Note: Specifications that are provided above are typical values and should not be considered as guaranteed analysis.
Key Features & Benefits
Discover the unique advantages of VUP's 8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid for your applications.
Unique Spiro Architecture
Rigid spiro structure provides distinct steric environment and reduced conformational flexibility compared to linear TEMPO derivatives.
Carboxylic Acid Reactivity
Enables amide bond formation with amines and amino acids for bioconjugation. Compatible with standard peptide coupling chemistry.
Stable Radical Character
Maintains paramagnetic properties under physiological conditions. Resistant to reduction and dimerization in biological environments.
Enhanced Rigidity
Spiro structure reduces molecular motion providing sharper EPR signals and improved distance measurements in protein studies.
VUP Research Grade
Lab researched quality with controlled synthesis ensuring consistent radical properties and minimal paramagnetic impurities.
Product Information & Technical Documents
Essential information and documentation for 8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid
Product Identification
Key product details and identifiers
Technical Documents
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Technical Data Sheet (TDS)
Complete technical specifications, physical properties, and application information for 8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid
Safety Data Sheet (SDS)
Safety information, handling procedures, and regulatory details for 8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid
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Frequently Asked Questions
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