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4-Amino-TEMPO, free radical

4-Amino-TEMPO, free radical structure

CAS No.: 14691-88-4

Chemical Name:: 4-Amino-TEMPO, free radical

Synonyms: 4-AMINO-TEMPO;tempamine;4-Amino-2,2,6,6-tetramethyl-1-piperidinyloxyl;Aminotempo;Tempo-amine;6-TeMpaMine;piperidino-1-oxyL;4-AMino-TEMPO, free radical 97%;4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINOXY;4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINOOXY

CBNumber:: CB9778366

Molecular Formula:: C9H19N2O*

Molecular Weight:: 171.26

MDL Number:: MFCD00006479

MOL File:: 14691-88-4.mol

MSDS File:: SDS

TDS File:: TDS

Last updated:2026-06-04 13:40:00

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4-Amino-TEMPO, free radical Properties

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
InChI	1S/C9H19N2O/c1-8(2)5-7(10)6-9(3,4)11(8)12/h7H,5-6,10H2,1-4H3
InChIKey	XUXUHDYTLNCYQQ-UHFFFAOYSA-N
SMILES	CC1(C)CC(N)CC(C)(C)N1[O]
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)
UNSPSC Code	12352000
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319-H335

Precautionary statements

P261-P264-P271-P280-P302+P352-P305+P351+P338

target organs

Respiratory system

PPE

dust mask type N95 (US), Eyeshields, Gloves

Hazard Codes

Xi,Xn

Risk Statements

36/37/38-20/21/22-34

Safety Statements

26-36-45-36/37/39

WGK Germany

Hazard Note

Irritant

TSCA

TSCA listed

HS Code

29333990

Storage Class

11 - Combustible Solids

Hazard Classifications

Eye Irrit. 2
Skin Irrit. 2
STOT SE 3

NFPA 704

	1
3		0

4-Amino-TEMPO, free radical price More Price(87)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	163945	4-Amino-TEMPO, free radical 97%	14691-88-4	1g	$171	2026-04-30	Buy
Sigma-Aldrich	163945	4-Amino-TEMPO, free radical 97%	14691-88-4	5g	$553	2026-04-30	Buy
TCI Chemical	A1343	4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical >97.0%(GC)	14691-88-4	1g	$92	2026-04-30	Buy
TCI Chemical	A3235	4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation) min. 98.0 %	14691-88-4	1G	$183	2024-03-01	Buy
TCI Chemical	A1343	4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical >97.0%(GC)	14691-88-4	5g	$277	2026-04-30	Buy

Product number	Packaging	Price	Buy
163945	1g	$171	Buy
163945	5g	$553	Buy
A1343	1g	$92	Buy
A3235	1G	$183	Buy
A1343	5g	$277	Buy

4-Amino-TEMPO, free radical Chemical Properties,Uses,Production

Chemical Properties

Red-Brown Oil

Uses

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

Uses

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

4-Amino-TEMPO, free radical Preparation Products And Raw materials

Raw materials

Preparation Products

4-Amino-TEMPO, free radical Suppliers

Global( 184)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
J & K SCIENTIFIC LTD.	18210857532 18210857532	jkinfo@jkchemical.com	China	96815	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
3B Pharmachem (Wuhan) International Co.,Ltd.	18930552037	3bsc@sina.com	China	15813	69
TCI (Shanghai) Development Co., Ltd.	021-67121386	Sales-CN@TCIchemicals.com	China	24512	81
Beijing HwrkChemical Technology Co., Ltd	89508211 18501085097	sales.bj@hwrkchemical.com	China	9407	55
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Beijing Ouhe Technology Co., Ltd	13552068683 13522913783	2355560935@qq.com	China	11777	60
Accela ChemBio Co.,Ltd.	021-50795510 4000665055	marketing@accelachem.com	China	10972	64
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
Chemsky（shanghai）International Co.,Ltd.	021-50135380	shchemsky@sina.com	China	32273	50

Supplier	Advantage
J & K SCIENTIFIC LTD.	76
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
3B Pharmachem (Wuhan) International Co.,Ltd.	69
TCI (Shanghai) Development Co., Ltd.	81
Beijing HwrkChemical Technology Co., Ltd	55
Energy Chemical	61
Beijing Ouhe Technology Co., Ltd	60
Accela ChemBio Co.,Ltd.	64
Shanghai Hanhong Scientific Co.,Ltd.	64
Chemsky（shanghai）International Co.,Ltd.	50

View Lastest Price from 4-Amino-TEMPO, free radical manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-09-07	4-Amino-TEMPO, free radical 14691-88-4		1kg	0.99	20tons	HANGZHOU HAILAN CHEMICAL CO.,LTD.
2026-05-18	4-Amino-TEMPO, free radical 14691-88-4		1kg	98%		Hefei Lbao Physical & Chemical Science Co.,Ltd
2019-12-20	4-Amino-TEMPO, free radical 14691-88-4	$1.00	1g	99%		Career Henan Chemical Co

4-Amino-TEMPO, free radical
14691-88-4
$0.00
0.99
HANGZHOU HAILAN CHEMICAL CO.,LTD.

4-Amino-TEMPO, free radical
14691-88-4
$0.00
98%
Hefei Lbao Physical & Chemical Science Co.,Ltd

4-Amino-TEMPO, free radical
14691-88-4
$1.00
99%
Career Henan Chemical Co

4-Amino-TEMPO, free radical Spectrum

4-Amino-TEMPO, free radical(14691-88-4)Raman 4-Amino-TEMPO, free radical(14691-88-4)FT-IR 4-Amino-TEMPO, free radical(14691-88-4)IR 4-Amino-TEMPO, free radical(14691-88-4)ESR

14691-88-4(4-Amino-TEMPO, free radical)Related Search:

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TEMPO-9-Ac 4-TRIMETHYLAMMONIUM-2,2,6,6-TETRAMETHYLPIPERIDINE-1-OXYL IODIDE 4-AMINO-TEMPO-PIPERIDINYL-D17 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE-D17, 1-15N-1-OXYL 4-ISOTHIOCYANATO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL

4-MALEIMIDO-TEMPO 4-(2-CHLOROACETAMIDO)-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL 4-(2-BROMOACETAMIDO)-2,2,6,6-TETRAMETHYL-1-PIPERIDINYLOXY 4-(2-IODOACETAMIDO)-TEMPO 4-(Trimethylammonium)-2,2,6,6-tetramethylpiperidine-d17-1-oxyl iodide

4-(N,N-Dimethyl-N-(2-hydroxyethyl))ammonium-2,2,6,6-tetramethylpiperidine-1-oxyl chloride FMOC-2,2,6,6-TETRAMETHYLPIPERIDINE-N-OXYL-4-AMINO-4-CARBOXYLIC ACID 1-(2-chloroethyl)-3-(1-oxyl-2,2,6,6-tetramethylpiperidinyl)-1-nitrosourea

1of4

4-amino-2,2,6,6-tetramethyl-1-piperidinylox 2,2,6,6-TETRAMETHYL-4-AMINO-1-PIPERIDINYLOXY 4-AMINO-1-OXY-2,2,6,6-TETRAMETHYLPIPERIDINE 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINO-1-OXYL 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINOOXY 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINOXY FREE RADICAL 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINYLOXY 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL 4-Amino-2,2,6,6-tetramethylpiperidinooxy,free radical 4-amino-2,2,6,6-tetramethylpiperidine 1-oxide 4-Amino-1-oxy-2,2,6,6-tetramethylpiperidine, free radical 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDIN-1-OXYL 4-Amino-2,2,6,6-tetramethylpiperidine-1-oxyl(4-Amino-TEMPO,freeradical) 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL FREE RADICAL [SPIN LABEL] 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINE 1-OXYL FREE RADICAL 97+% 4-AMINO-TEMPO (4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINYLOXY) 4-amino-2,2,6,6-tetramethylpiperidinyloxy, free radical 4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical 4-Amino-2,2,6,6-tetramethylpiperidinyloxy, free radical, 4-Amino-TEMPO 4-Amino-2,2,6,6-tetramethylpiperidine-1-oxyl, 4-Amino-2,2,6,6-tetramethylpiperidinyloxy, free radical, 4-Amino-TEMPO 4-Amino-2,2,6,6-tetramethylpiperidinooxy, 97%, free radical (4-Amino-2,2,6,6-tetramethyl-1-piperidinyloxy)radical 4-Amino-2,2,6,6-tetramethyl-1-piperidinyloxyl 4-Amino-2,2,6,6-tetramethylpiperidino-1-oxy Aminotempo Tempo-amine 4-AMino-2,2,6,6-tetraMethylpiperidinooxy, free radical, 97% 1GR 6-TeMpaMine 4-AMino-2,2,6,6-tetraMethylpiperidino-1-oxyl, 95+% 4-AMINO-2,2,6,6-TETRAMETHYLPIPERIDINOXY 1-Piperidinyloxy, 4-aMino-2,2,6,6-tetraMethyl- 4-AMino-TEMPO, free radical 97% 1-lambda1-oxidanyl-2,2,6,6-tetramethyl-piperidin-4-amine piperidino-1-oxyL 4-Amino-2,2,6,6-tetramethylpiperidin-1-oxid 4-Amino-1-oxy-2,2,6,6-tetramethylpiperidine, free radical 98% 4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical> 4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radical (purified by sublimation) 4-amino-2,2,6,6-tetramethyl-1-piperidine-1-oxyl 4-Amino-2,2,6,6-tetramethylpiperidine 1-Oxyl Free Radica 4-Amino-2,2,6,6-tetramethylpiperidinooxy,freeradical,98% 4-AMINO-TEMPO tempamine 14691-88-4 C9H19N2O ESR Spectrometry Spin Labels Radical Chemistry TEMPO Derivatives Synthetic Reagents Stable Radicals Industrial/Fine Chemicals ESR Spectrometry Spin Labels Analytical Chemistry Heterocycles Spin Labeling Compounds