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

3-Methyl-3-pyrazolin-5-one

3-Methyl-3-pyrazolin-5-one price.
  • $7 - $808.96
  • Product name: 3-Methyl-3-pyrazolin-5-one
  • CAS: 4344-87-0
  • MF: C4H6N2O
  • MW: 98.1
  • EINECS:
  • MDL Number:MFCD00010705
  • Synonyms: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
19 prices
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Brand
  • AHH
  • Ambeed
  • American Custom Chemicals Corporation
  • Chemenu
  • ChemScene
  • Crysdot
  • Matrix Scientific
  • Sigma-Aldrich
  • SynQuest Laboratories
Package
  • 1G
  • 2.5G
  • 5G
  • 10g
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  • 1000g
  • ManufacturerAHH
  • Product numberMT-18764
  • Product description3-Methyl-3-pyrazolin-5-one 98%
  • Packaging500g
  • Price$490
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA101431
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98%
  • Packaging10g
  • Price$7
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA101431
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98%
  • Packaging25g
  • Price$9
  • Updated2021-12-16
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  • ManufacturerAmbeed
  • Product numberA101431
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98%
  • Packaging100g
  • Price$23
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA101431
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98%
  • Packaging500g
  • Price$104
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0034607
  • Product description3-METHYL-3-PYRAZOLIN-5-ONE 95.00%
  • Packaging1G
  • Price$597.87
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0034607
  • Product description3-METHYL-3-PYRAZOLIN-5-ONE 95.00%
  • Packaging2.5G
  • Price$746.88
  • Updated2021-12-16
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  • ManufacturerAmerican Custom Chemicals Corporation
  • Product numberCHM0034607
  • Product description3-METHYL-3-PYRAZOLIN-5-ONE 95.00%
  • Packaging5G
  • Price$808.96
  • Updated2021-12-16
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  • ManufacturerChemenu
  • Product numberCM120437
  • Product description5-Methyl-1,2-dihydropyrazol-3-one 95+%
  • Packaging500g
  • Price$104
  • Updated2021-12-16
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  • ManufacturerChemScene
  • Product numberCS-W013725
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98.83%
  • Packaging500g
  • Price$93
  • Updated2021-12-16
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  • ManufacturerCrysdot
  • Product numberCD11124313
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98%
  • Packaging100g
  • Price$49
  • Updated2021-12-16
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  • ManufacturerCrysdot
  • Product numberCD11124313
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98%
  • Packaging500g
  • Price$99
  • Updated2021-12-16
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  • ManufacturerCrysdot
  • Product numberCD11124313
  • Product description5-Methyl-1H-pyrazol-3(2H)-one 98%
  • Packaging1000g
  • Price$149
  • Updated2021-12-16
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  • ManufacturerMatrix Scientific
  • Product number072859
  • Product description3-Methyl-5-hydroxypyrazole 95+%
  • Packaging25g
  • Price$20
  • Updated2021-12-16
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  • ManufacturerMatrix Scientific
  • Product number072859
  • Product description3-Methyl-5-hydroxypyrazole 95+%
  • Packaging100g
  • Price$49
  • Updated2021-12-16
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  • ManufacturerSigma-Aldrich
  • Product number303062
  • Product description3-Methyl-3-pyrazolin-5-one 98%
  • Packaging25g
  • Price$50.1
  • Updated2023-06-20
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-18764 3-Methyl-3-pyrazolin-5-one 98% 500g $490 2021-12-16 Buy
Ambeed A101431 5-Methyl-1H-pyrazol-3(2H)-one 98% 10g $7 2021-12-16 Buy
Ambeed A101431 5-Methyl-1H-pyrazol-3(2H)-one 98% 25g $9 2021-12-16 Buy
Ambeed A101431 5-Methyl-1H-pyrazol-3(2H)-one 98% 100g $23 2021-12-16 Buy
Ambeed A101431 5-Methyl-1H-pyrazol-3(2H)-one 98% 500g $104 2021-12-16 Buy
American Custom Chemicals Corporation CHM0034607 3-METHYL-3-PYRAZOLIN-5-ONE 95.00% 1G $597.87 2021-12-16 Buy
American Custom Chemicals Corporation CHM0034607 3-METHYL-3-PYRAZOLIN-5-ONE 95.00% 2.5G $746.88 2021-12-16 Buy
American Custom Chemicals Corporation CHM0034607 3-METHYL-3-PYRAZOLIN-5-ONE 95.00% 5G $808.96 2021-12-16 Buy
Chemenu CM120437 5-Methyl-1,2-dihydropyrazol-3-one 95+% 500g $104 2021-12-16 Buy
ChemScene CS-W013725 5-Methyl-1H-pyrazol-3(2H)-one 98.83% 500g $93 2021-12-16 Buy
Crysdot CD11124313 5-Methyl-1H-pyrazol-3(2H)-one 98% 100g $49 2021-12-16 Buy
Crysdot CD11124313 5-Methyl-1H-pyrazol-3(2H)-one 98% 500g $99 2021-12-16 Buy
Crysdot CD11124313 5-Methyl-1H-pyrazol-3(2H)-one 98% 1000g $149 2021-12-16 Buy
Matrix Scientific 072859 3-Methyl-5-hydroxypyrazole 95+% 25g $20 2021-12-16 Buy
Matrix Scientific 072859 3-Methyl-5-hydroxypyrazole 95+% 100g $49 2021-12-16 Buy
Sigma-Aldrich 303062 3-Methyl-3-pyrazolin-5-one 98% 25g $50.1 2023-06-20 Buy

Properties

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)
pka :9.04±0.70(Predicted)
form :solid
color :Off White
CAS DataBase Reference :4344-87-0(CAS DataBase Reference)

Safety Information

Symbol(GHS): GHS hazard pictograms
Signal word: Warning
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning GHS hazard pictograms P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning GHS hazard pictograms P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning GHS hazard pictograms
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 Wash hands thoroughly after handling.
P264 Wash skin thouroughly after handling.
P271 Use only outdoors or in a well-ventilated area.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352 IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

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

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