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1,3-Cyclopentanedione

1,3-Cyclopentanedione structure

CAS No.: 3859-41-4

Chemical Name:: 1,3-Cyclopentanedione

Synonyms: CYCLOPENTANE-1,3-DIONE;1,3-Cyclopentadione;Cyclopentanedione;opentanedione;Pentan-1,3-dione;1,3-Cyclopentadion;1,3-Cyclopentandion;Cyclopentan-1,3-dion;1,3-CYCLOPENTANEDIONE;1,3-Dioxocyclopentane

CBNumber:: CB9304952

Molecular Formula:: C5H6O2

Molecular Weight:: 98.1

MDL Number:: MFCD00001405

MOL File:: 3859-41-4.mol

MSDS File:: SDS

Last updated:2026-05-28 06:27:30

Product description	Number	Pack Size	Price
1,3-Cyclopentanedione 97%	177164	1g	$121
1,3-Cyclopentanedione 97%	177164	5g	$137
1,3-Cyclopentanedione >98.0%(GC)	C1146	1g	$52
1,3-Cyclopentanedione >98.0%(GC)	C1146	5g	$169
1,3-Cyclopentanedione	TRC-C987480-5G	5g	$64
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1,3-Cyclopentanedione Properties

Melting point	149-151 °C (lit.)
Boiling point	143.59°C (rough estimate)
Density	1.1008 (rough estimate)
refractive index	1.4400 (estimate)
storage temp.	2-8°C
solubility	DMSO, Ethyl Acetate
pka	8.94±0.20(Predicted)
form	Crystalline Powder
color	white to brown
Water Solubility	Very soluble in water.
BRN	1362728
InChI	InChI=1S/C5H6O2/c6-4-1-2-5(7)3-4/h1-3H2
InChIKey	LOGSONSNCYTHPS-UHFFFAOYSA-N
SMILES	C1(=O)CCC(=O)C1
CAS DataBase Reference	3859-41-4(CAS DataBase Reference)
FDA UNII	98107S5K06
NIST Chemistry Reference	1,3-Cyclopentanedione(3859-41-4)
UNSPSC Code	12352100
NACRES	NA.22

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319

Precautionary statements

P264-P280-P302+P352-P337+P313-P305+P351+P338-P362+P364-P332+P313

PPE

Eyeshields, Gloves, type N95 (US)

Hazard Codes

Risk Statements

36/37/38

Safety Statements

22-24/25-36-26

WGK Germany

HS Code

29142900

Storage Class

11 - Combustible Solids

NFPA 704

	0
0		0

1,3-Cyclopentanedione price More Price(73)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
Sigma-Aldrich	177164	1,3-Cyclopentanedione 97%	3859-41-4	1g	$121	2026-04-30	Buy
Sigma-Aldrich	177164	1,3-Cyclopentanedione 97%	3859-41-4	5g	$137	2026-04-30	Buy
TCI Chemical	C1146	1,3-Cyclopentanedione >98.0%(GC)	3859-41-4	1g	$52	2026-04-30	Buy
TCI Chemical	C1146	1,3-Cyclopentanedione >98.0%(GC)	3859-41-4	5g	$169	2026-04-30	Buy
TRC	TRC-C987480-5G	1,3-Cyclopentanedione	3859-41-4	5g	$64	2026-06-03	Buy

Product number	Packaging	Price	Buy
177164	1g	$121	Buy
177164	5g	$137	Buy
C1146	1g	$52	Buy
C1146	5g	$169	Buy
TRC-C987480-5G	5g	$64	Buy

1,3-Cyclopentanedione Chemical Properties,Uses,Production

Chemical Properties

white to cream crystalline powder

Uses

1,3-Cyclopentanedione was used in the synthesis of chemical probes for selective labeling of sulfenic acid proteins. It was also used to synthesize enaminones with possible anticonvulsant activity.

Definition

ChEBI: Cyclopentane-1,3-dione is a beta-diketone and a member of cyclopentanones.

Synthesis Reference(s)

Journal of the American Chemical Society, 102, p. 2095, 1980 DOI: 10.1021/ja00526a059

Purification Methods

Purify the dione by Soxhlet extraction with CHCl3. The CHCl3 is evaporated and the residue is recrystallised from EtOAc and/or sublimed at 120o/4mm. [IR: Boothe et al. J Am Chem Soc 75 1732 1953, DePuy & Zaweski J Am Chem Soc 81 4920 1959, Beilstein 7 IV 1981.]

1,3-Cyclopentanedione synthesis

Synthesis of 1,3-Cyclopentanedione from Levulinic acid

1,3-Cyclopentanedione Preparation Products And Raw materials

Raw materials

Preparation Products

3-BROMO-CYCLOPENT-2-ENOL 2-Methyl-1,3-cyclopentanedione 2-Cyclopenten-1-one, 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)- 3-ethylcyclopent-2-en-1-one 3-Amino-cyclopent-2-enone

2-Cyclopenten-1-one,2-bromo-3-ethoxy-(9CI) 5H-Cyclopenta[b]pyridin-5-one,6,7-dihydro-2-methyl-(9CI)

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1,3-Cyclopentanedione Suppliers

Global( 353)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
BTC Nantong Pharmaceuticals Technology Co.,Ltd	+86-0513-81283365	Info@btcpharm.com	China	251	58
Shaanxi Dideu Medichem Co. Ltd	+86-029-81138252 +86-173 9270 1263	1057@dideu.com	China	3958	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
ATK CHEMICAL COMPANY LIMITED	+undefined-21-51877795	ivan@atkchemical.com	China	33024	60
Speranza Chemical Co., Ltd.	+86-86-075521030354 +8618688942810	sophieliu@speranzachem.com	China	923	55
career henan chemical co	+86-0371-86658258 +8613203830695	sales@coreychem.com	China	29812	58
Jinan Carbotang Biotech Co.,Ltd.	+8615866703830	figo.gao@foxmail.com	China	8497	58
Accela ChemBio Inc.	+1-858-6993322	info@accelachem.com	United States	21193	58
Changzhou Ditong Chemical Co.,Ltd	+86-0519-88298848	info@edengenechem.com	China	2165	58
CONIER CHEM AND PHARMA LIMITED	+8618523575427	sales@conier.com	China	49979	58

Supplier	Advantage
BTC Nantong Pharmaceuticals Technology Co.,Ltd	58
Shaanxi Dideu Medichem Co. Ltd	58
Hebei Chuanghai Biotechnology Co., Ltd	58
ATK CHEMICAL COMPANY LIMITED	60
Speranza Chemical Co., Ltd.	55
career henan chemical co	58
Jinan Carbotang Biotech Co.,Ltd.	58
Accela ChemBio Inc.	58
Changzhou Ditong Chemical Co.,Ltd	58
CONIER CHEM AND PHARMA LIMITED	58

View Lastest Price from 1,3-Cyclopentanedione manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2026-07-06	1,3-Cyclopentanedione 3859-41-4	$65.00-650.00	10kg	0.99	20tons	Zibo Hangyu Biotechnology Development Co., Ltd
2025-06-27	1,3-Cyclopentanedione 3859-41-4	$10.00-30.00	50KG	99%	500000kg	Hebei Chuanghai Biotechnology Co., Ltd
2024-08-14	1,3-Cyclopentanedione 3859-41-4	$1.00	1KG	99%	20T	Shaanxi Dideu Medichem Co. Ltd

1,3-Cyclopentanedione
3859-41-4
$65.00-650.00
0.99
Zibo Hangyu Biotechnology Development Co., Ltd

1,3-Cyclopentanedione
3859-41-4
$10.00-30.00
99%
Hebei Chuanghai Biotechnology Co., Ltd

1,3-Cyclopentanedione
3859-41-4
$1.00
99%
Shaanxi Dideu Medichem Co. Ltd

1,3-Cyclopentanedione Spectrum

1,3-Cyclopentanedione(3859-41-4)MS 1,3-Cyclopentanedione(3859-41-4)¹HNMR 1,3-Cyclopentanedione(3859-41-4)¹³CNMR 1,3-Cyclopentanedione(3859-41-4)IR1 1,3-Cyclopentanedione(3859-41-4)IR2 1,3-Cyclopentanedione(3859-41-4)Raman

3859-41-4(1,3-Cyclopentanedione)Related Search:

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1,3-CYCLOPENTANEDIONE 1,3-CYCLOPENTANEDIONE 98+% Pentan-1,3-dione 1,3-Cyclopentanedione,99% 1,3-Cyclopentandion 1,3-Cyclopentanedione, 99% 5GR 1,3-Dioxocyclopentane 1,3-Cyclopentanedione, 97+% 1,3-Cyclopentanedione 97% opentanedione 1,3-Cyclopentadion 1,3-Cyclopentanedione (6CI, 7CI, 8CI, 9CI, ACI) Cyclopentan-1,3-dion 1,3-Cyclopentadione Cyclopentanedione CYCLOPENTANE-1,3-DIONE 3859-41-4 3854-41-4 Ketones Organic Building Blocks C3 to C6 Carbonyl Compounds Building Blocks Ring Systems C3 to C6 Carbonyl Compounds Ketones pharmacetical ketone Carbonyl Compounds

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