2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one

Modify Date: 2024-01-02 12:27:12

2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one structure	Common Name	2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one
	CAS Number	86-92-0	Molecular Weight	188.226
	Density	1.1±0.1 g/cm3	Boiling Point	365.1±21.0 °C at 760 mmHg
	Molecular Formula	C₁₁H₁₂N₂O	Melting Point	129 °C
	MSDS	USA	Flash Point	174.6±22.1 °C

Name	2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one
Synonym	More Synonyms

Density	1.1±0.1 g/cm3
Boiling Point	365.1±21.0 °C at 760 mmHg
Melting Point	129 °C
Molecular Formula	C₁₁H₁₂N₂O
Molecular Weight	188.226
Flash Point	174.6±22.1 °C
Exact Mass	188.094955
PSA	32.67000
LogP	0.90
Vapour Pressure	0.0±0.8 mmHg at 25°C
Index of Refraction	1.595

MSDS(Chinese)

CHEMICAL IDENTIFICATION

RTECS NUMBER :: UQ9680000

CHEMICAL NAME :: 2-Pyrazolin-5-one, 3-methyl-1-p-tolyl-

CAS REGISTRY NUMBER :: 86-92-0

LAST UPDATED :: 199709

DATA ITEMS CITED :: 2

MOLECULAR FORMULA :: C11-H12-N2-O

MOLECULAR WEIGHT :: 188.25

WISWESSER LINE NOTATION :: T5NNV DHJ BR D1& E1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 7450 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Skin and Appendages - hair

REFERENCE :: LONZA# Personal Communication from LONZA Ltd., CH-4002, Basel, Switzerland Volume(issue)/page/year: 26APR1982

Hazard Codes	Xn
Risk Phrases	22
RTECS	UQ9680000
HS Code	2933199090

4-Methylphenylhydrazine hydrochloride structure

4-Methylphenylh...

CAS#:637-60-5

Ethyl acetoacetate structure

Ethyl acetoacetate

CAS#:141-97-9

~%

2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one Structure

2,4-Dihydro-5-m...

CAS#:86-92-0

Literature: Tetrahedron Letters, , vol. 53, # 49 p. 6650 - 6653

4-Iodotoluene structure

4-Iodotoluene

CAS#:624-31-7

3-methyl-2-pyrazolin-5-one structure

3-methyl-2-pyra...

CAS#:108-26-9

~77%

2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one Structure

2,4-Dihydro-5-m...

CAS#:86-92-0

Literature: Xu, Xiu-Hua; Wang, Xin; Liu, Guo-Kai; Tokunaga, Etsuko; Shibata, Norio Organic Letters, 2012 , vol. 14, # 10 p. 2544 - 2547

Ethyl acetoacetate structure

Ethyl acetoacetate

CAS#:141-97-9

4-Methylphenylhydrazine structure

4-Methylphenylh...

CAS#:539-44-6

~64%

2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one Structure

2,4-Dihydro-5-m...

CAS#:86-92-0

Literature: Jing, Lingling; Wang, Liang; Zhao, Yinglan; Tan, Rui; Xing, Xiumei; Liu, Ting; Huang, Wencai; Luo, Youfu; Li, Zicheng Journal of Chemical Research, 2012 , vol. 36, # 12 p. 691 - 696

Precursor 5
CAS#:637-60-5 4-Methylphenylh... CAS#:141-97-9 Ethyl acetoacetate CAS#:624-31-7 4-Iodotoluene CAS#:108-26-9 3-methyl-2-pyra...
CAS#:539-44-6 4-Methylphenylh...
DownStream 2
CAS#:350997-70-5 5-CHLORO-3-METH... CAS#:73097-75-3 4-acetyl-5-meth...

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%

EINECS 201-708-4

5-methyl-2-(4-methylphenyl)-4H-pyrazol-3-one

MFCD00035708

5-Methyl-2-(4-methylphenyl)-2,4-dihydro-3H-pyrazol-3-one

2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one

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

Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one
Price: Check
Purity: 97.0%
Delivery: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Shanghai Jizhi Biochemical Technology Co., Ltd
China
Product Name: 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one
Price: ￥268.0/5g ￥948.0/25g
Purity: 97.0%
Delivery: Inquiry
Contact: Liu jia
Email: 2130147988@qq.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Delivery: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

Zhongshan Xingrui Chemical Co. , Ltd.
China
Product Name: 2,4-Dihydro-5-methyl-2-(4-methylphenyl)-3H-pyrazol-3-one
Price: ￥Inquiry/25kg
Purity: 99.0%
Delivery: Inquiry
Contact: Wang Jie
Email: 3096638339@qq.com

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