CAS 13024-90-3|1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One

Introduction：Basic information about CAS 13024-90-3|1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One, including its chemical name, molecular formula, synonyms, physicochemical properties, and safety information, etc.

Table of Contents

1. Names
2. Chemical & Physical Properties
3. Safety Information
4. Customs
5. Articles2
6. Synonyms

Common Name	1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One
CAS Number	13024-90-3	Molecular Weight	208.644
Density	1.3±0.1 g/cm3	Boiling Point	325.9±44.0 °C at 760 mmHg
Molecular Formula	C₁₀H₉ClN₂O	Melting Point	167-171 °C(lit.)
MSDS	ChineseUSA	Flash Point	150.9±28.4 °C

Names

Name	1-(4-Chlorophenyl)-3-Methyl-2-Pyrazolin-5-One
Synonym	More Synonyms

Chemical & Physical Properties

Density	1.3±0.1 g/cm3
Boiling Point	325.9±44.0 °C at 760 mmHg
Melting Point	167-171 °C(lit.)
Molecular Formula	C₁₀H₉ClN₂O
Molecular Weight	208.644
Flash Point	150.9±28.4 °C
Exact Mass	208.040344
PSA	32.67000
LogP	2.31
Vapour Pressure	0.0±0.7 mmHg at 25°C
Index of Refraction	1.598
InChIKey	WHIXQFSPEDIMGL-UHFFFAOYSA-N
SMILES	CC1=NN(c2ccc(Cl)cc2)C(=O)C1

Safety Information

Personal Protective Equipment	Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes	Xi
RIDADR	NONH for all modes of transport
WGK Germany	3
HS Code	2933199090

Customs

HS Code	2933199090
Summary	2933199090. other compounds containing an unfused pyrazole ring (whether or not hydrogenated) in the structure. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

Articles2

Pulse radiolysis study on free radical scavenger edaravone (3-methyl-1-phenyl-2-pyrazolin-5-one). 2: A comparative study on edaravone derivatives.

J. Radiat. Res. 52(1) , 15-23, (2011)

A comparative study using the pulse radiolysis technique was carried out to investigate transient absorption spectra and rate constants for the reactions of (•)OH and N(3)(•) with edaravone (3-methyl-...

(2-Chlorophenyl)-3-methylchromeno [2, 3-c] pyrazol-4 (1H)-one. Batezila G and Holzer W.

Molbank 2010(1) , M661, (2010)

Synonyms

3H-Pyrazol-3-one, 2-(4-chlorophenyl)-1,2-dihydro-5-methyl-

2-(4-Chlorophenyl)-5-methyl-1,2-dihydro-3H-pyrazol-3-one

EINECS 235-884-9

1-(4-chlorophenyl)-3-methyl-4,5-dihydro-1H-pyrazol-5-one

1-(4-Chlorophenyl)-3-methyl-2-pyrazolin-5-one

2-(4-Chlorophenyl)-5-methyl-2,4-dihydro-3H-pyrazol-3-one

MFCD00043814

3H-Pyrazol-3-one, 2-(4-chlorophenyl)-2,4-dihydro-5-methyl-

1-(4-Chlorophenyl)-3-Methyl-5-pyrazolone

2-(4-chloro-phenyl)-5-methyl-2,4-dihydro-pyrazol-3-one

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