Molekula

4-Hydroxy tempo (4-Hydroxy-2,2,6,6-tetramethyl-piperidinooxy, free radical)

SKU 73749999 CAS 2226-96-2 C9H18NO2 MW 172.24 In stock

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.

CoA by batch Download specification

Overview

Pricing & pack sizes

Pack sizes & pricing

£ GBP € EUR $ USD

100 g — £29.50 per pack
500 g — £116.90 per pack

Prices exclude VAT/sales tax and shipping. Bulk and custom pack sizes available on request.

Specifications

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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
SKU	73749999
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

Danger

Corrosive GHS05
Health Hazard GHS07
Serious Health Hazard GHS08

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

Not for use in food, drugs, household, or in or on humans or animals. Consult the Safety Data Sheet before handling.

Documents

Safety Data Sheets (SDS)

Available in PT, FR, IT, ES, DE, EN.

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.

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.

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