Molekula
4-Hydroxy tempo (4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy, free radical)
4-Hydroxy TEMPO is a stable free radical used as a catalyst in oxidation reactions and as a spin label in electron paramagnetic resonance (EPR) studies. It is a key reagent in organic synthesis and materials science. CAS: 2226-96-2, Molecular Formula: C9H18NO2, Molecular Weight: 172.24 g/mol, Storage: 2 to 8 °C, Signal Word: Danger. Molekula supplies 4-Hydroxy TEMPO from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
4-Hydroxy TEMPO is a stable free radical used as a catalyst in oxidation reactions and as a spin label in electron paramagnetic resonance (EPR) studies. It is a key reagent in organic synthesis and materials science. CAS: 2226-96-2, Molecular Formula: C9H18NO2, Molecular Weight: 172.24 g/mol, Storage: 2 to 8 °C, Signal Word: Danger. Molekula supplies 4-Hydroxy TEMPO from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | Orange crystal |
| Melting Point | >65 Deg C |
| Ash | <0.5% |
| Assay | >99% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Shelf Life | 24 months |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| CAS Number | 2226-96-2 |
| Molecular Formula | C9H18NO2 |
| Molecular Weight | 172.24 |
| SMILES | [O]N1C(C)(C)CC(O)CC1(C)C |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29339997 |
| Tariff Code | 2933919000 |
Safety & GHS
-
Explosive
GHS01
-
Flammable
GHS02
-
Compressed Gas
GHS04
Hazard statements
- H302 Harmful if swallowed
- H318 Causes serious eye damage
- H373 May cause damage to organs through prolonged or repeated exposure
- H412 Harmful to aquatic life with long lasting effects
- USH01 May form combustible dust concentrations in air
Precautionary statements
- P262 Do not get in eyes, on skin, or on clothing
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+312 IF SWALLOWED: Call a POISON CENTER or doctor/physician if you feel unwell
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
- P337+313 If eye irritation persists get medical advice/attention
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is 4-Hydroxy TEMPO used for?
4-Hydroxy TEMPO is primarily used as a stable free radical in organic synthesis, particularly in oxidation reactions and as a radical scavenger in polymer chemistry.
What is the chemical formula and molecular weight of 4-Hydroxy TEMPO?
The formula is C9H18NO2 with a molecular weight of 172.24 g/mol.
How should 4-Hydroxy TEMPO be stored?
It should be stored at 2 to 8 °C in a cool, dark place to maintain stability and prevent decomposition.
What grade of 4-Hydroxy TEMPO does Molekula supply?
Molekula supplies 4-Hydroxy TEMPO in high-purity research grade, suitable for laboratory and industrial applications.
Can Molekula supply 4-Hydroxy TEMPO in bulk?
Yes, Molekula can supply 4-Hydroxy TEMPO in bulk quantities—please contact our sales team for pricing and availability.
What documentation comes with a purchase of 4-Hydroxy TEMPO?
Each order includes a Certificate of Analysis (CoA) and Safety Data Sheet (SDS), compliant with regulatory standards.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.