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3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical structure

CAS No.: 2154-68-9

Chemical Name:: 3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical

Synonyms: t517;NSC 158842;pca(radical);Carboxyproxyl;Carboxy-proxyl;3-CARBOXY-PROXYL;RARECHEM AL BO 1259;3-Carboxy-PROXYL 98%;3-CARBOXY-PROXYL, FREE RADICAL;3-Carboxy-PROXYL,freeradical,98%

CBNumber:: CB5387843

Molecular Formula:: C9H16NO3*

Molecular Weight:: 186.23

MDL Number:: MFCD00003167

MOL File:: 2154-68-9.mol

Last updated:2025-07-04 15:11:17

Request For Quotation

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical Properties

Melting point	200°C (dec.)
Boiling point	320.72°C (rough estimate)
Density	1.1417 (rough estimate)
refractive index	1.4640 (estimate)
storage temp.	2-8°C
solubility	Aqueous Base (Slightly), Chloroform (Slightly, Sonicated), Methanol (Slightly）
form	Solid
color	Pale Beige to Beige
Water Solubility	Soluble in water (partly miscible), methanol (50 mg/ml), acetone, dichloromethane and chloroform.
BRN	4136411
InChI	InChI=1S/C9H16NO3/c1-8(2)5-6(7(11)12)9(3,4)10(8)13/h6H,5H2,1-4H3,(H,11,12)
InChIKey	GEPIUTWNBHBHIO-UHFFFAOYSA-N
SMILES	N1([O])C(C)(C)CC(C(=O)O)C1(C)C \|^1:1\|
CAS DataBase Reference	2154-68-9(CAS DataBase Reference)
EWG's Food Scores	1
EPA Substance Registry System	1-Pyrrolidinyloxy, 3-carboxy-2,2,5,5-tetramethyl- (2154-68-9)
UNSPSC Code	12352000
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H335-H315-H319

Precautionary statements

P264-P280-P302+P352+P332+P313+P362+P364-P305+P351+P338+P337+P313-P261-P280a-P304+P340-P305+P351+P338-P405-P501a

Risk Statements

36/37/38

Safety Statements

24/25

WGK Germany

RTECS

UY6705500

TSCA

Yes

HS Code

2933998090

NFPA 704

	0
1		2

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical price More Price(15)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	253324	3-Carboxy-PROXYL 98%	2154-68-9	1g	$828	2025-07-31	Buy
TCI Chemical	C1406	3-Carboxy-2,2,5,5-tetramethylpyrrolidine 1-Oxyl Free Radical >98.0%(HPLC)(T)	2154-68-9	1g	$315	2025-07-31	Buy
TRC	C182770	3-Carboxy-PROXYL	2154-68-9	250mg	$90	2021-12-16	Buy
Biosynth Carbosynth	FC19748	3-Carboxy-2,2,5,5-tetramethylpyrrolidinyl-1-oxy	2154-68-9	250mg	$125	2021-12-16	Buy
Biosynth Carbosynth	FC19748	3-Carboxy-2,2,5,5-tetramethylpyrrolidinyl-1-oxy	2154-68-9	100mg	$60	2021-12-16	Buy

Product number	Packaging	Price	Buy
253324	1g	$828	Buy
C1406	1g	$315	Buy
C182770	250mg	$90	Buy
FC19748	250mg	$125	Buy
FC19748	100mg	$60	Buy

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical Chemical Properties,Uses,Production

Chemical Properties

Yellow Solid

Uses

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical has been used to determine distribution coefficients of neutral solubilizates in anionic micelles

Uses

3-Carboxy-PROXYL is used in the synthesis and reactions of stable nitroxyl radicals. It is also used to study molecular migration and long-term stability of seeds and pollen and used in the preparation of a tetraphenylporphyrin bearing a nitroxyl radical.

Definition

ChEBI: 3-carboxy-PROXYL is a member of aminoxyls and a pyrrolidinecarboxylic acid. It is functionally related to a PROXYL.

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical Preparation Products And Raw materials

Raw materials

Preparation Products

1-Pyrrolidinyloxy, 3-(hydroxymethyl)-2,2,5,5-tetramethyl-

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical Suppliers

Global( 85)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29855	58
BOC Sciences	+1-631-485-4226	inquiry@bocsci.com	United States	19552	58
Zhengzhou Alfa Chemical Co.,Ltd	+8618530059196	sale04@alfachem.cn	China	12222	58
Finetech Industry Limited	+86-27-8746-5837 +8619945049750	info@finetechnology-ind.com	China	9629	58
Dayang Chem (Hangzhou) Co.,Ltd.	+86-0571-88938639 +8617705817739	info@dycnchem.com	China	52846	58
Zhejiang J&C Biological Technology Co.,Limited	+1-2135480471	sales@sarms4muscle.com	China	10473	58
PT CHEM GROUP LIMITED	+86-85511178;	peter68@ptchemgroup.com	China	35425	58
GIHI CHEMICALS CO.,LIMITED	+8618058761490	info@gihichemicals.com	China	49977	58
Hebei Miaoyin Technology Co.,Ltd	+852-852-95427495 +85295427495	kathy@hbyinsheng.com	China	3512	58
LEAPCHEM CO., LTD.	+86-852-30606658	market18@leapchem.com	China	43339	58

Supplier	Advantage
career henan chemical co	58
BOC Sciences	58
Zhengzhou Alfa Chemical Co.,Ltd	58
Finetech Industry Limited	58
Dayang Chem (Hangzhou) Co.,Ltd.	58
Zhejiang J&C Biological Technology Co.,Limited	58
PT CHEM GROUP LIMITED	58
GIHI CHEMICALS CO.,LIMITED	58
Hebei Miaoyin Technology Co.,Ltd	58
LEAPCHEM CO., LTD.	58

View Lastest Price from 3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical manufacturers

Image	Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
	2019-07-06	3-CARBOXY-PROXYL 2154-68-9	US $2.00 / KG	1KG	99%	customise	Career Henan Chemical Co

3-CARBOXY-PROXYL
2154-68-9
US $2.00 / KG
99%
Career Henan Chemical Co

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical Spectrum

3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical(2154-68-9)MS 3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical(2154-68-9)IR1 3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical(2154-68-9)IR2 3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical(2154-68-9)Raman

2154-68-9(3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical)Related Search:

(-)-3-Carboxy-2,2,5,5-tetraMethylpyrrolidinyl-1-oxy trans-3-Methoxycarbonyl-2,2,5,5-tetramethyl-4-nitromethyl-pyrrolidin-1-oxyl trans-3-Formyl-4-methoxycarbonyl-2,2,5,5-tetramethylpyrrolidin-1-yloxyl Radical (+)-3-CARBOXY-PROXYL 3-[(ETHOXYCARBONYL)OXYCARBONYL]-2,5-DIHYDRO-2,2,5,5-TETRAMETHYL-1H-PYRROL-1-YLOXY

(+)-3-Carboxy-2,2,5,5-tetramethylpyrrolidinyl-1-oxy 3-Methoxycarbonyl-2,2,5,5-tetramethyl-3-pyrrolidin-1-oxyl 3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl Free Radical 3-(4-NITROPHENOXYCARBONYL)-2,2,5,5-TETRAMETHYL-1-PYRROLIDINYLOXY

1of2

3-CARBOXY-PROXYL 3-CARBOXY-PROXYL, FREE RADICAL 3-CARBOXY-2,2,5,5-TETRAMETHYL-1-PYRROLIDINE-1-OXYL 3-CARBOXY-2,2,5,5-TETRAMETHYL-1-PYRROLIDINYLOXY 3-CARBOXY-2,2,5,5-TETRAMETHYLPYRROLIDINE 1-OXYL 3-CARBOXY-2,2,5,5-TETRAMETHYLPYRROLIDINYL-1-OXY RARECHEM AL BO 1259 1-Hydroxy-2,2,5,5-tetramethyl-3-pyrrolidinecarboxylic acid 1-Pyrrolidinyloxy, 3-carboxy-2,2,5,5-tetramethyl- 2,2,5,5-Tetramethyl-3-carboxypyrrolidine-N-oxyl 2,2,5,5-Tetramethyl-3-carboxypyrrolidinooxy 2,2,5,5-Tetramethylpiperidine-1-oxyl-3-carboxylic acid 2,2,5,5-Tetramethylpyrrolidine-1-oxyl-3-carboxylic acid 2,2,5,5-TETRAMETHYL-1-PYRROLIDINYLOXY-3-CARBOXYLIC ACID Carboxy-proxyl 3-Carboxy-2,2,5,5-tetraMethylpyrrolidine 1-Oxyl 3-Carboxy-PROXYL 98% 3-Carboxy-2,2,5,5-tetramethyl-1-pyrrolidine-1-oxyl, free radical 3-carboxy-2,2,5,5-tetramethyl-1-pyrrolidinylox 3-Carboxy-2,2,5,5-tetramethylpyrrolidinyloxyl pca(radical) t517 3-carboxy-2,2,5,5-tetramethylpyrrolidin-1-yloxy 3-Carboxy-PROXYL,freeradical,98% 3-CARBOXY-2,2,5,5-TETRAMETHYLPYRROLIDINE 1-OXYL, FREE RADICAL DL-3-Carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxyl NSC 158842 3-carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxy, free radical 3-CARBOXY-2,2,5,5-TETRAMETHYLPYRROLIDINE 1-OXYL, FREE RADICAL [SPIN LABEL] 3-(Carboxy)-2,2,5,5-tetramethyl-1-pyrrolidinyloxy, 3-Carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxy, free radical 3-Carboxy-proxyl, 98%, free radical 3-Ethoxy-1-(4-ethoxyphenyl)thiourea (4-Carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyloxy)radical [(2,2,5,5-Tetramethyl-3-carboxypyrrolizino)oxy]radical [(3-Carboxy-2,2,5,5-tetramethyl-1-pyrrolidinyl)oxy]radical [2,2,5,5-Tetramethyl-3-carboxypyrrolizinooxy]radical Carboxyproxyl 3-Carboxy-2,2,5,5-tetramethylpyrrolidine 1-Oxyl Free Radical> 11H-Dibenzo[b,e][1,4]diazepin-11-one,5,14-dihydro- 2154-68-9 C9H16NO3 ESR Spectrometry Spin Labels Synthetic Reagents Stable Radicals Radical Chemistry Others Heterocyclic Compounds Analytical Chemistry ESR Spectrometry Spin Labels Heterocycles Spin Labeling Compounds