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Crystal High Quality Dyestuff Industry 4-Hydroxy-Tempo

Crystal High Quality Dyestuff Industry 4-Hydroxy-Tempo
Basic Information


4-Hydroxy-2,2,6,6-tetramethylpiperidine 1-oxyl,TEMPOL;

2,2,6,6-Tetramethyl-4-hydroxy-1-piperidinyloxy radical;

4-Hydroxy-2,2,6,6-Tetramethyl-piperidinyloxy ;



4-Hydroxy-TEMPO free radical;

CAS No. 2226-96-2
EINECS 218-760-9
Formula C9H18NO2


Molecular Weight 172.24
Storage temp 2-8°C
PH 8.2 (20g/l, H2O, 20℃)
Boiling Point 302.58°C
BRN  1422990

Safety Information
Hazard Codes   C, Xi
WGK Germanys  1
RTECS TN8991000
Risk Statements  22-36/37/38-36/38
HS Code  29333999

Supply Ability
100 Tons per Month, and our standing inventory is 20-30 tons.
Package and Delivery

fibre drum for 4-Hydroxy-TEMPO

Regular packaging: 25kgs/ 50L fibre drum

If you have any special package requirements, please tell us.


Q: Can you provide samples of your products?

A: Yes. Please get in touch with our marketing office for samples.

Q: What's the MOQ of  4-Hydroxy-TEMPO?

A: There is no MOQ of 4-Hydroxy-TEMPO, any quantity can be provided.

Protocols and Articles

Why Choose Us


We have many years of experience in the production of  4-Hydroxy-TEMPO, and  4-Hydroxy-TEMPO is our so competitive product.

Our production is 600-800 tons per year. And our standing inventory is 20-30 tons.

Better payment term   

We can accept T/T and LC at sight for the fist cooperation . We also can supply more payment terms for our regular customers.

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