4-Amino-TEMPO, free radical

What is 4-Amino-TEMPO, free radical?

Red-Brown Oil

4-Amino-TEMPO is useful spin label for studying biological systems and polymers.

Useful spin label for studying biological systems, polymers, and as a building block for more elaborate spin labels.

4-Amino-TEMPO, free radical is a radical species used as a spin label

Melting point:	37-39°C
Boiling point:	98 °C / 4mmHg
Density	0.9977 (rough estimate)
refractive index	1.4480 (estimate)
Flash point:	39 °C
storage temp.	2-8°C
solubility	Dichloromethane (Slightly), Methanol (Slightly)
form	Adhering Crystals, Needles or Moist Mass
color	Red to red-brown
FreezingPoint	36.0 to 42.0 ℃
BRN	3933966
CAS DataBase Reference	14691-88-4(CAS DataBase Reference)
EPA Substance Registry System	1-Piperidinyloxy, 4-amino-2,2,6,6-tetramethyl- (14691-88-4)

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P302+P352:IF ON SKIN: wash with plenty of soap and water. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.