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4,4-Dimethyl-1-phenyl-3-pyrazolidone

4,4-Dimethyl-1-phenyl-3-pyrazolidone structure

CAS No.: 2654-58-2

Chemical Name:: 4,4-Dimethyl-1-phenyl-3-pyrazolidone

Synonyms: DIMEZONE;DIMEZORE;nsc215239;Phenidone D;TIMTEC-BB SBB003657;4,4-dimethylphenidone;LABOTEST-BB LT00440816;dimethyl-phenylpyrazolidine DPP;4,4-Dimethyl-1-phenylpyrazolidone;4,4-Dimethyl-1-phenyl-3-pyrazolidon

CBNumber:: CB5289868

Molecular Formula:: C11H14N2O

Molecular Weight:: 190.24

MDL Number:: MFCD00044325

MOL File:: 2654-58-2.mol

MSDS File:: SDS

Last updated:2026-05-28 02:22:45

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4,4-Dimethyl-1-phenyl-3-pyrazolidone Properties

Melting point	167-172 °C(lit.)
Boiling point	325.75°C (rough estimate)
Density	1.0815 (rough estimate)
refractive index	1.5700 (estimate)
Flash point	195 °C
pka	9.58±0.70(Predicted)
Water Solubility	soluble
BRN	144478
CAS DataBase Reference	2654-58-2(CAS DataBase Reference)
EWG's Food Scores	1
FDA UNII	I86O3K6LPN
EPA Substance Registry System	3-Pyrazolidinone, 4,4-dimethyl-1-phenyl- (2654-58-2)

SAFETY

Risk and Safety Statements

Symbol(GHS)	GHS06
Signal word	Danger
Hazard statements	H335-H315-H319-H300-H317
Precautionary statements	P264-P280-P302+P352-P321-P332+P313-P362-P264-P280-P305+P351+P338-P337+P313P-P261-P272-P280-P302+P352-P333+P313-P321-P363-P501-P264-P270-P301+P310-P321-P330-P405-P501
Hazard Codes	T
Risk Statements	25-36/37/38-43-23/24/25
Safety Statements	26-36/37-45-37/39-28A-24-36/37/39
RIDADR	UN 2811 6.1/PG 2
WGK Germany	2
RTECS	UQ8710000
TSCA	TSCA listed
HazardClass	6.1
PackingGroup	II

4,4-Dimethyl-1-phenyl-3-pyrazolidone price More Price(1)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
American Custom Chemicals Corporation	CHM0024878	4,4-DIMETHYL-1-PHENYL-3-PYRAZOLIDINONE 95.00%	2654-58-2	100G	$2501.95	2021-12-16	Buy

Product number	Packaging	Price	Buy
CHM0024878	100G	$2501.95	Buy

4,4-Dimethyl-1-phenyl-3-pyrazolidone Chemical Properties,Uses,Production

Chemical Properties

white to light orange or pink crystalline powder

4,4-Dimethyl-1-phenyl-3-pyrazolidone Preparation Products And Raw materials

Raw materials

Preparation Products

4,4-Dimethyl-1-phenyl-3-pyrazolidone Suppliers

Global( 65)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Meryer (Shanghai) Chemical Technology Co., Ltd.	4006356688 18621169109	market03@meryer.com	China	40202	62
Energy Chemical	400-0056266	sales8178@energy-chemical.com	China	44850	61
Capot Chemical Co., Ltd	+86 (0) 571 85 58 67 18		China	18187	66
Shanghai Hanhong Scientific Co.,Ltd.	021-54306202 13764082696	info@hanhongsci.com	China	42917	64
Hubei Jusheng Technology Co.,Ltd	027-59599241 18871490274	1400878000@qq.com	China	9506	58
Shanghai Uchem Inc.	15618758386 15618758386	sales3@myuchem.com	China	1990	55
Shanghai Qiao Chemical Science Co., Ltd	021-58892003	info@qiaochem.com	China	6065	65
JinJin Le Chemical Co., Ltd	18001959627(微信同号) 18001959627	jjlchem2@163.com	China	9890	58
Capot Chemical Co.,Ltd.	+86-（0）57185586718 +86-13336195806	sales@capot.com	China	29626	60
Aikon International Limited	025-58851090 13913916777	sales01@aikonchem.com	China	15947	58

Supplier	Advantage
Meryer (Shanghai) Chemical Technology Co., Ltd.	62
Energy Chemical	61
Capot Chemical Co., Ltd	66
Shanghai Hanhong Scientific Co.,Ltd.	64
Hubei Jusheng Technology Co.,Ltd	58
Shanghai Uchem Inc.	55
Shanghai Qiao Chemical Science Co., Ltd	65
JinJin Le Chemical Co., Ltd	58
Capot Chemical Co.,Ltd.	60
Aikon International Limited	58

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4,4-dimethyl-1-phenyl-3-pyrazolidinon 4,4-Dimethyl-1-phenylpyrazolidin-3-one 1-Phenyl-4,4-dimethylpyrazolidine-3-one 4,4-Dimethyl-1-phenylpyrazolidone 4,4-Dimethyl-1-phenyl-3-pyrazolidone,99% nsc215239 4,4-DIMETHYL-1-PHENYL-3-PYRAZOLIDINONE 4,4'-DIMETHYL-1-PHENYL-3-PYRAZOLIDONE 4,4-DIMETHYL-1-PHENYL-3-PYRAZOLIDONE DIMEZONE DIMEZORE 4,4-dimethylphenidone LABOTEST-BB LT00440816 TIMTEC-BB SBB003657 4,4-Dimethyl-1-phenyl-3-pyrozolidinone 4,4-Dimethyl-1-phenyl-3-pyrazolidione 3-Pyrazolidinone, 4,4-dimethyl-1-phenyl- 4,4-Dimethyl-1-phenyl-3-pyrazolidone (Dimezone) 4,4-Dimethyl-1-phenyl-3-pyrazolidon 4,4-DIMETHYL-1-PHENYL-3-PYRAZOLIDONE DIMESON Phenidone D DIMEZONE (4,4-DIMETHYL-1-PHENYL-3-PYRAZOLIDINONE) dimethyl-phenylpyrazolidine DPP 1-Phenyl-4,4-dimethyl-3-pyrazolidone 2654-58-2 Pyrazoles Building Blocks Heterocyclic Building Blocks Heterocyclic Compounds Pyrazoles