5-Methyl-2-phenyl-1,2-dihydropyrazol-3-one RC01272
2 Inquiries
89-25-8
99%
Royalchem
25kg/drum
2029-12-31
Pharmaceutical intermediates
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Product Description
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Seller Information
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Inquiry History
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DescriptionECHEMI Editorial ReferenceEdaravone is a strong novel free radical scavenger, and inhibits MMP-9-related brain hemorrhage in rats treated with tissue plasminogen activator.
1-phenyl-3-methyl-5-pyrazolone appears as white to off-white powder or crystals. (NTP, 1992)|DryPowder
1-phenyl-3-methyl-5-pyrazolone appears as white to off-white powder or crystals. (NTP, 1992)|Edaravone is a pyrazolone that is 2,4-dihydro-3H-pyrazol-3-one which is substituted at positions 2 and 5 by phenyl and methyl groups, respectively. It has a role as a radical scavenger and an antioxidant.|Edaravone is a free radical scavenger approved in May, 2017 for the treatment of amyotrophic lateral scleorosis (ALS). Clinical studies showed that the treatment attenuated deterioration of the disease when compared to placebo. It has been previously investigated for the treatment of ischemic stroke, reperfusion Injury, and myocardial Infarction as it possesses antioxidant and anti-apoptotic properties. Being a low molecular weight molecule with good water and lipid-soluble properies, it is therapeutically advantageous in crossing the blood-brain barrier to mediate nootropic and neuroprotective effects. Oral formulation of edaravone is currently under development.|Edaravone is a free radical scavenger and neuroprotective agent used for therapy of amyotrophic lateral sclerosis. Edaravone is associated with a low rate of serum aminotransferase elevations during therapy but has not been linked to instances of clinically apparent, acute liver injury.|An antipyrine derivative that functions as a free radical scavenger and neuroprotective agent. It is used in the treatment of AMYOTROPHIC LATERAL SCLEROSIS and STROKE.Basic Info-
Product Name:
Edaravone
Other Name:3H-Pyrazol-3-one,2,4-dihydro-5-methyl-2-phenyl-;2-Pyrazolin-5-one,3-methyl-1-phenyl-;2,4-Dihydro-5-methyl-2-phenyl-3H-pyrazol-3-one;C.I. Developer 1;Developer Z;1-Phenyl-3-methyl-2-pyrazolin-5-one;1-Phenyl-3-methyl-5-pyrazolone;Norphenazone;3-Methyl-1-phenylpyrazolin-5-one;3-Methyl-1-phenyl-2-pyrazoline-5-one;3-Methyl-1-phenyl-5-pyrazolone;1-Phenyl-3-methyl-5-pyrazolinone;3-Methyl-1-phenyl-2-pyrazolin-5-one;Norantipyrine;MCI 186;Edaravone;1-Phenyl-3-methyl-5-oxopyrazole;5-Methyl-2-phenylpyrazol-3-one;3-Methyl-1-phenylpyrazol-5(4H)-one;Radicut;3-Methyl-1-phenyl-4,5-dihydropyrazol-5-one;NSC 12;Methylphenylpyrazolone;NSC 26139;NCI-C 03952;NSC 2629;Edarabone;3-Methyl-1-phenyl-1H-pyrazol-5-one;3-Methyl-1-phenyl-4,5-dihydropyrazole-5-one;1-Phenyl-3-methyl-1H-4,5-dihydropyrazol-5-one;5-Methyl-2-phenyl-2H-pyrazol-3(4H)-one;3-Methyl-1-phenyl-1H-pyrazol-5(4H)-one;5-Methyl-2-phenyl-2,4-dihydro-3H-pyrazol-3-one;3-Methyl-1-phenyl-4,5-dihydro-1H-pyrazol-5-one;Phenylmethyl pyrazolone;Radicava;4,5-Dihydro-3-methyl-5-oxo-1-phenylpyrazole;Edvaradone;3-Methyl-1-phenylpyrazole-5-one;5-Methyl-2-phenyl-2,4-dihydropyrazol-3-one;Edaravon;115566-83-1;12235-58-4;52224-17-6;62495-97-0;72134-66-8;206195-95-1
CAS No.:89-25-8
Molecular Formula:C10H10N2O
InChIKeys:InChIKey=QELUYTUMUWHWMC-UHFFFAOYSA-N
Molecular Weight:174.19900
Exact Mass:174.20
EC Number:201-891-0
NSC Number:758622|26139|2629|12
DSSTox ID:DTXSID9021130
Color/Form:MONOCLINIC PRISMS FROM WATER|WHITE POWDER OR CRYSTALS
ATC Code:N - Nervous system
HScode:2933199090
Categories:
Characteristics-
PSA:
32.67000
XLogP3:1.3
Appearance:1-phenyl-3-methyl-5-pyrazolone appears as white to off-white powder or crystals. (NTP, 1992)
Density:1.12
Melting Point:127 °C
Boiling Point:287 °C @ Press: 105 Torr
Flash Point:155.2ºC
Refractive Index:1.606
Water Solubility:H2O: 3 g/L (20 ºC)
Storage Conditions:Store in a tightly closed container. Store in a cool, dry, well-ventilated area away from incompatible substances. Store protect
Vapor Pressure:less than 0.01 mm Hg at 68 °F (NTP, 1992)
Toxicity:LD50 orl-rat: 3500 mg/kg LONZA# 08FEB79
PKA:7None
Dissociation Constants:7.0
Air and Water Reactions:Insoluble in water.
Reactive Group:Amides and Imides
Reactivity Profile:Amines are chemical bases. They neutralize acids to form salts plus water. These acid-base reactions are exothermic. The amount of heat that is evolved per mole of amine in a neutralization is largely independent of the strength of the amine as a base. Amines may be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated by amines in combination with strong reducing agents, such as hydrides.
Hazard IdentificationClassification of the substance or mixture
Skin irritation, Category 2
Skin sensitization, Category 1
Hazardous to the aquatic environment, long-term (Chronic) - Category Chronic 2
GHS label elements, including precautionary statements
Pictogram(s) 
Signal word Warning
Hazard statement(s) H315 Causes skin irritation
H317 May cause an allergic skin reaction
H411 Toxic to aquatic life with long lasting effects
Precautionary statement(s) Prevention P264 Wash ... thoroughly after handling.
P280 Wear protective gloves/protective clothing/eye protection/face protection/hearing protection/...
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P272 Contaminated work clothing should not be allowed out of the workplace.
P273 Avoid release to the environment.
Response P302+P352 IF ON SKIN: Wash with plenty of water/...
P321 Specific treatment (see ... on this label).
P332+P317 If skin irritation occurs: Get medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P333+P317 If skin irritation or rash occurs: Get medical help.
P391 Collect spillage.
Storage none
Disposal P501 Dispose of contents/container to an appropriate treatment and disposal facility in accordance with applicable laws and regulations, and product characteristics at time of disposal.
Other hazards which do not result in classification
no data available
Handling and StoragePrecautions for safe handling
Handling in a well ventilated place. Wear suitable protective clothing. Avoid contact with skin and eyes. Avoid formation of dust and aerosols. Use non-sparking tools. Prevent fire caused by electrostatic discharge steam.
Conditions for safe storage, including any incompatibilities
Store the container tightly closed in a dry, cool and well-ventilated place. Store apart from foodstuff containers or incompatible materials.
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Seller Information
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Business Type:
Trader
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Main Products:
Pharmaceutical intermediates
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Location:
Room 336, Building 7, No. 177 Xingqiao North Road, Xingqiao Street, Linping District, Hangzhou
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Payment Terms:
TT against copy of documents,D/P,L/C,TT against B/L draft before shipment,100% TT in advance
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Average lead Time:
14
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Total Annual Revenue:
Less than $1 million
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Total Employees:
Less than 5
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Year of Establishment:
2025
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Inquiry History2 Inquiries
Country Product Purchase Quantity Date Posted 
Vietnam
Hair dye intermediates
1000 KG Dec 4, 2024 
Bangladesh
Butyl Acetate
1.00 KG Nov 11, 2025 Post an enquiry for this product
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