ChemicalBook > CAS DataBase List > 3-Methyl-3-pyrazolin-5-one

3-Methyl-3-pyrazolin-5-one

Product Name
3-Methyl-3-pyrazolin-5-one
CAS No.
4344-87-0
Chemical Name
3-Methyl-3-pyrazolin-5-one
Synonyms
3H-Pyrazol-3-one, 1,2-dihydro-5-methyl-;AKOS B028792;3 METHYLPYRAZOLONE;5-Methyl-1H-pyrazole-3-ol;3-METHYL-3-PARAZOLIN-5-ONE;3-METHYL-3-PYRAZOLIN-5-ONE;3-Hydroxy-5-methylpyrazole;3-Methyl-3-pyrazoline-5-one;5-METHYL-3-HYDROXY PYRAZOLE;5-Methyl-1H-pyrazol-3(2H)-one
CBNumber
CB8217187
Molecular Formula
C4H6N2O
Formula Weight
98.1
MOL File
4344-87-0.mol
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3-Methyl-3-pyrazolin-5-one Property

Melting point:
223-225 °C (lit.)
Density 
1.107±0.06 g/cm3(Predicted)
storage temp. 
Keep in dark place,Inert atmosphere,Room temperature
solubility 
1 M NH4OH: soluble25mg/mL, clear, colorless (in methanol)
form 
solid
pka
9.04±0.70(Predicted)
color 
Off White
CAS DataBase Reference
4344-87-0(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Risk Statements 
36/37/38
Safety Statements 
26-37/39-36
WGK Germany 
3
HS Code 
2933119000
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
303062
Product name
3-Methyl-3-pyrazolin-5-one
Purity
98%
Packaging
25g
Price
$50.1
Updated
2023/06/20
SynQuest Laboratories
Product number
4H01-1-32
Product name
3-Methyl-5-hydroxypyrazole
Purity
95%
Packaging
1g
Price
$75
Updated
2021/12/16
ChemScene
Product number
CS-W013725
Product name
5-Methyl-1H-pyrazol-3(2H)-one
Purity
98.83%
Packaging
500g
Price
$93
Updated
2021/12/16
Matrix Scientific
Product number
072859
Product name
3-Methyl-5-hydroxypyrazole
Purity
95+%
Packaging
25g
Price
$20
Updated
2021/12/16
Matrix Scientific
Product number
072859
Product name
3-Methyl-5-hydroxypyrazole
Purity
95+%
Packaging
100g
Price
$49
Updated
2021/12/16
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3-Methyl-3-pyrazolin-5-one Chemical Properties,Usage,Production

Chemical Properties

Light yellow crystalline powder

Uses

3-Methyl-3-pyrazolin-5-one was used in the preparation of substituted 4-alkyl(cycloalkyl)-2-amino-3-cyano-4H-pyrans.

General Description

3-Methyl-3-pyrazolin-5-one is an intermediate in the synthesis of heterocyclic compounds. Crystal structure of 3-methyl-3-pyrazolin-5-one was studied.

3-Methyl-3-pyrazolin-5-one Preparation Products And Raw materials

Raw materials

Preparation Products

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3-Methyl-3-pyrazolin-5-one Suppliers

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View Lastest Price from 3-Methyl-3-pyrazolin-5-one manufacturers

Career Henan Chemical Co
Product
3-Methyl-3-pyrazolin-5-one 4344-87-0
Price
US $1.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
Customized
Release date
2019-12-20

4344-87-0, 3-Methyl-3-pyrazolin-5-oneRelated Search:

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  • AKOS B028792
  • 3-METHYL-3-PYRAZOLIN-5-ONE
  • 3 METHYLPYRAZOLONE
  • 3-METHYL-3-PARAZOLIN-5-ONE
  • 3-METHYL-2-PYRAZOLIN-5-ONE (PILOT)
  • 1,2-Dihydro-3-methyl-5H-pyrazol-5-one
  • 3-Hydroxy-5-methyl-1H-pyrazole
  • 3-Methyl-3-pyrazoline-5-one
  • 5-Methyl-1,2-dihydro-3H-pyrazole-3-one
  • 5-Methyl-1H-pyrazole-3(2H)-one
  • 5-Methyl-1H-pyrazol-3(2H)-one
  • 3-Methyl-1H-pyrazol-5-ol, 1,2-Dihydro-5-methyl-3H-pyrazol-3-one
  • 5-Hydroxy-3-methyl-1H-pyrazole
  • 3-Methyl-3-pyrazolin-5-one 98%
  • 5-Methyl-1H-pyrazole-3-ol
  • 3H-Pyrazol-3-one, 1,2-dihydro-5-methyl-
  • 3-Hydroxy-5-methylpyrazole
  • 1,2-Dihydro-5-methyl-3H-pyrazol-3-one
  • 5-METHYL-3-HYDROXY PYRAZOLE
  • 4344-87-0
  • C4H6N2O
  • Pyrazoles
  • Building Blocks
  • C3 to C5
  • Chemical Synthesis
  • Heterocyclic Building Blocks
  • Building Blocks
  • Heterocyclic Building Blocks
  • Pyrazoles
  • Heterocyclic Compounds