Hindered Amines
High-purity hindered amines with sterically hindered piperidine structure and stable radicals. Essential building blocks for HALS light stabilizers, TEMPO derivatives for selective oxidation, and versatile intermediates for demanding applications.
Our Hindered Amines Portfolio
Discover our range of high-quality Hindered Amines products for your specific application needs.
2,2,6,6-Tetramethylpiperidine (TEMP)
The foundational intermediate for producing a wide range of Hindered Amine Light Stabilizers (HALS) and the versatile stable radical TEMPO. VUP produces high-purity TEMP (min. 99%) at its pilot plant facility.
Key Properties
TEMPO (2,2,6,6-Tetramethylpiperidin-1-oxyl)
A highly versatile and stable nitroxyl radical, renowned for its utility as a catalyst in selective organic oxidations and as a mediator in controlled radical polymerization (NMP). VUP produces high-purity TEMPO at pilot scale.
Key Properties
4-Hydroxy-TEMPO (TEMPOL / H-TEMPO)
A key functionalized derivative of TEMPO featuring both a stable nitroxyl radical and reactive hydroxyl group. Serves as a versatile antioxidant, catalyst, spin label, and crucial intermediate for synthesizing specialty chemicals.
Key Properties
4-Amino-TEMPO
Amino-functionalized TEMPO radical featuring stable nitroxyl functionality combined with reactive amino group. Ideal for spin labeling, bioconjugation, and advanced materials research. VUP Lab Researched quality.
Key Properties
4-Oxo-TEMPO (TEMPone)
A ketone-functionalized stable nitroxyl radical based on TEMPO, offering alternative reactivity in selective oxidation catalysis and serving as a versatile intermediate for synthesizing complex nitroxide derivatives.
Key Properties
1,2,2,6,6-Pentamethylpiperidine
An N-methylated hindered amine intermediate used for synthesizing specific types of HALS (Hindered Amine Light Stabilizers) like Tinuvin 765/292 and other functional molecules requiring this specialized piperidine structure.
Key Properties
1,2,2,6,6-Pentamethyl-4-piperidinol
A functionalized N-methylated hindered amine containing a hydroxyl group, used as an intermediate for HALS synthesis (e.g., Tinuvin 765/292). The combination of N-methyl and hydroxyl functionalities provides unique reactivity.
Key Properties
4-Amino-2,2,6,6-tetramethylpiperidine
A sterically hindered primary amine intermediate crucial for synthesizing specialized HALS compounds and pharmaceutical intermediates. The primary amino group provides excellent reactivity while the hindered structure offers stability and unique chemical properties for advanced applications.
Key Properties
bis(2,2,6,6-tetramethyl-4-piperidyl) sebacate
Industry-standard high-molecular-weight HALS (equivalent to Tinuvin 770) providing superior UV protection for polyolefins, ABS, and other polymers. Low volatility and excellent thermal stability make it ideal for demanding outdoor applications requiring long-term performance.
Key Properties
bis(1,2,2,6,6-pentamethyl-4-piperidyl) sebacate
High-performance liquid HALS light stabilizer providing exceptional UV protection for coatings, inks, and plastics. Features excellent thermal stability and broad polymer compatibility. VUP Lab Verified Synthesis ensures consistent quality.
Key Properties
8-Oxyl-7,7,9,9-tetramethyl-1,4-dioxa-8-azaspiro[4.5]decane-2-carboxylic acid
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.
Key Properties
Industry Applications for Hindered Amines
Our Hindered Amines serve diverse applications across industry sectors.
Polymer Light Stabilization
HALS intermediates and ready-to-use light stabilizers protecting polymers from UV degradation and extending service life.
Polymerization Inhibition
Stable radical systems for controlled radical processes and precise polymerization control in industrial applications.
Selective Oxidation
TEMPO-based catalysts enabling efficient and highly selective chemical transformations in organic synthesis.
Pharmaceutical Intermediates
Specialized TEMPO derivatives serving as key building blocks and API intermediates in pharmaceutical synthesis.
Spin Labeling / EPR Spectroscopy
Advanced stable radical probes for molecular analysis and spectroscopic research applications.
Advanced Chemical Synthesis
Versatile hindered amine intermediates and functional molecules for complex synthetic pathways and research.
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