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ChemicalBook >> CAS DataBase List >> 3-Methyl-2-pyrazolin-5-one

3-Methyl-2-pyrazolin-5-one

3-Methyl-2-pyrazolin-5-one price.
  • $5 - $472.5
  • Product name: 3-Methyl-2-pyrazolin-5-one
  • CAS: 108-26-9
  • MF: C4H6N2O
  • MW: 98.1
  • EINECS:203-565-3
  • MDL Number:MFCD00020699
  • Synonyms:3-Methyl-4,5-dihydro-1H-pyrazole-5-one;5-Methyl-2,4-dihydro-3H-pyrazole-3-one;3-Methyl-2-pyrazolin-5-one,99%;3-methyl pyrazole-5-one;3-Methyl-5-pyrazolone, 99%, 99%;TIMTEC-BB SBB004372;2-Pyrazolin-5-one, 3-methyl-;3-methyl-2-pyrazolin-5-on
Price31 Properties Safety Information Description
31 prices
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Brand
  • AHH
  • AK Scientific
  • Alfa Aesar
  • Ambeed
  • Apolloscientific
  • Ark Pharm
  • Chemenu
  • Chem-Impex
  • Crysdot
  • Frontier Specialty Chemicals
  • Matrix Scientific
  • Oakwood
  • SynQuest Laboratories
  • TCI Chemical
  • TRC
Package
  • 5g
  • 10g
  • 25g
  • 50g
  • 100g
  • 250g
  • 500g
  • 1000g
  • 1kg
  • ManufacturerAHH
  • Product numberMT-18765
  • Product description3-Methyl-2-pyrazolin-5-one 98%
  • Packaging250g
  • Price$300
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberC188
  • Product description3-Methyl-2-pyrazolin-5-one
  • Packaging5g
  • Price$14
  • Updated2021-12-16
  • Buy
  • ManufacturerAK Scientific
  • Product numberJ53375
  • Product description3-Methyl-2-pyrazolin-5-one
  • Packaging500g
  • Price$150
  • Updated2021-12-16
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA10253
  • Product description3-Methyl-2-pyrazolin-5-one, 98+%
  • Packaging10g
  • Price$38.54
  • Updated2023-01-06
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA10253
  • Product description3-Methyl-2-pyrazolin-5-one, 98+%
  • Packaging50g
  • Price$137.55
  • Updated2023-01-06
  • Buy
  • ManufacturerAlfa Aesar
  • Product numberA10253
  • Product description3-Methyl-2-pyrazolin-5-one, 98+%
  • Packaging250g
  • Price$472.5
  • Updated2023-01-06
  • Buy
  • ManufacturerAmbeed
  • Product numberA247389
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging25g
  • Price$6
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA247389
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging10g
  • Price$6
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA247389
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging100g
  • Price$9
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA247389
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging500g
  • Price$72
  • Updated2021-12-16
  • Buy
  • ManufacturerAmbeed
  • Product numberA247389
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging1kg
  • Price$140
  • Updated2021-12-16
  • Buy
  • ManufacturerApolloscientific
  • Product numberOR28352
  • Product description3-methyl-4,5-dihydro-1H-pyrazol-5-one
  • Packaging100g
  • Price$65
  • Updated2021-12-16
  • Buy
  • ManufacturerArk Pharm
  • Product numberP000723772
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging10g
  • Price$5
  • Updated2021-12-16
  • Buy
  • ManufacturerArk Pharm
  • Product numberP000723772
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging25g
  • Price$8
  • Updated2021-12-16
  • Buy
  • ManufacturerArk Pharm
  • Product numberP000723772
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging100g
  • Price$13
  • Updated2021-12-16
  • Buy
  • ManufacturerArk Pharm
  • Product numberP000723772
  • Product description3-Methyl-1H-pyrazol-5(4H)-one 97%
  • Packaging500g
  • Price$61
  • Updated2021-12-16
  • Buy
Manufacturer Product number Product description Packaging Price Updated Buy
AHH MT-18765 3-Methyl-2-pyrazolin-5-one 98% 250g $300 2021-12-16 Buy
AK Scientific C188 3-Methyl-2-pyrazolin-5-one 5g $14 2021-12-16 Buy
AK Scientific J53375 3-Methyl-2-pyrazolin-5-one 500g $150 2021-12-16 Buy
Alfa Aesar A10253 3-Methyl-2-pyrazolin-5-one, 98+% 10g $38.54 2023-01-06 Buy
Alfa Aesar A10253 3-Methyl-2-pyrazolin-5-one, 98+% 50g $137.55 2023-01-06 Buy
Alfa Aesar A10253 3-Methyl-2-pyrazolin-5-one, 98+% 250g $472.5 2023-01-06 Buy
Ambeed A247389 3-Methyl-1H-pyrazol-5(4H)-one 97% 25g $6 2021-12-16 Buy
Ambeed A247389 3-Methyl-1H-pyrazol-5(4H)-one 97% 10g $6 2021-12-16 Buy
Ambeed A247389 3-Methyl-1H-pyrazol-5(4H)-one 97% 100g $9 2021-12-16 Buy
Ambeed A247389 3-Methyl-1H-pyrazol-5(4H)-one 97% 500g $72 2021-12-16 Buy
Ambeed A247389 3-Methyl-1H-pyrazol-5(4H)-one 97% 1kg $140 2021-12-16 Buy
Apolloscientific OR28352 3-methyl-4,5-dihydro-1H-pyrazol-5-one 100g $65 2021-12-16 Buy
Ark Pharm P000723772 3-Methyl-1H-pyrazol-5(4H)-one 97% 10g $5 2021-12-16 Buy
Ark Pharm P000723772 3-Methyl-1H-pyrazol-5(4H)-one 97% 25g $8 2021-12-16 Buy
Ark Pharm P000723772 3-Methyl-1H-pyrazol-5(4H)-one 97% 100g $13 2021-12-16 Buy
Ark Pharm P000723772 3-Methyl-1H-pyrazol-5(4H)-one 97% 500g $61 2021-12-16 Buy
Next Last

Properties

Melting point :220-224 °C
Boiling point :183.6°C (rough estimate)
Density :1.1890 (rough estimate)
refractive index :1.4327 (estimate)
storage temp. :Sealed in dry,Room Temperature
solubility :Slightly soluble in ethanol.
form :powder to crystal
pka :13.10±0.40(Predicted)
color :White to Light yellow
CAS DataBase Reference :108-26-9(CAS DataBase Reference)
NIST Chemistry Reference :3H-pyrazol-3-one, 2,4-dihydro-5-methyl-(108-26-9)
EPA Substance Registry System :3H-Pyrazol-3-one, 2,4-dihydro-5-methyl- (108-26-9)

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.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Description

3-Methyl-2-pyrazolin-5-one is used in the preparation of spirocyclic [indole-3,4'-pyrano[2,3-c]pyrazole] by reacting with isatins and malonitrile in the presence of sodium bromide as electrolyte.

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Suppliers and manufacturers

career henan chemical co
3-Methyl-2-pyrazolin-5-one
$1.00 /1kg
3-Methyl-2-pyrazolin-5-one CAS:108-26-9
Shanghai Time Chemicals CO., Ltd.
ATK CHEMICAL COMPANY LIMITED
SHANDONG ZHI SHANG CHEMICAL CO.LTD
Hubei Jusheng Technology Co.,Ltd.
Accela ChemBio Inc.
Chongqing Chemdad Co., Ltd
Alchem Pharmtech,Inc.
Shenzhen Excellent Biotech Co., Ltd.
CONIER CHEM AND PHARMA LIMITED