3-Methyl-1-phenyl-2-pyrazolin-5-one (CAS No. 89-25-8) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Organic Chemicals. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.
Organic Chemicals
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The CAS number of 3-Methyl-1-phenyl-2-pyrazolin-5-one is 89-25-8.
Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.
Main applications include Organic Chemicals.
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1-PHENYL-3-METHYL-5-PYRAZOLONE · CAS 89-25-8 · C10H10N2O. UNII S798V6YJRP. Boiling Point: 549 °F at 105 mmHg (NTP, 1992); Boiling Point: 287; Boiling Point: 191 °C @ 17 MM HG; 287 °C @ 105 MM HG.
| CAS Registry Number | 89-25-8 |
|---|---|
| PubChem CID | 4021 |
| Molecular formula | C10H10N2O |
| IUPAC name | 5-methyl-2-phenyl-4H-pyrazol-3-one |
| UNII (FDA) | S798V6YJRP |
| Molecular Weight | 174.20 |
|---|---|
| XLogP3 | 1.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 1 |
| Exact Mass | 174.079312947 |
| Monoisotopic Mass | 174.079312947 |
| Topological Polar Surface Area | 32.7 |
| Heavy Atom Count | 13 |
| Formal Charge | 0 |
| Boiling Point | 549 °F at 105 mmHg (NTP, 1992) |
|---|---|
| Boiling Point | 287 |
| Boiling Point | 191 °C @ 17 MM HG; 287 °C @ 105 MM HG |
| Melting Point | 261 to 266 °F (NTP, 1992) |
| Melting Point | 129.7 |
| Melting Point | 127 °C |
| Melting Point | 128.9 °C |
| Vapor Pressure | LESS THAN 0.01 MM @ 20 °C |
| LogP | 1.12 |
| LogP | 1.44 |
| Regulatory & Food Contact | CIR / INCI: Cosmetic ingredients (Phenyl Methyl Pyrazolone) -> CIR (Cosmetic Ingredient Review) CIR / INCI: Hair dyeing |
|---|---|
| GHS notification summary | 7.7% (16 / 209) |
| GHS notification summary | 7.7% (16 / 209) |
|---|---|
| Reported hazard statements | H302 (26.8%), H315 (34.4%), H317 (59.8%), H319 (23.4%), H335 (26.8%), H412 (52.2%) |
This chemical does not meet GHS hazard criteria for 7.7% (16 of 209) of reports.
H302 (26.8%): Harmful if swallowed [Warning Acute toxicity, oral]
MCI-186; MCI 186; RefChem:57584; edaravone; 89-25-8; 3-METHYL-1-PHENYL-2-PYRAZOLIN-5-ONE; Radicut; Norphenazone; 1-Phenyl-3-methyl-5-pyrazolone; Developer Z; Methylphenylpyrazolone; Norantipyrine; C.I. Developer 1; Phenylmethylpyrazolone; Phenyl methyl pyrazolone; Radicava
CAS 89-25-8; molecular formula C10H10N2O; molecular weight — g/mol.
MCI-186, MCI 186, RefChem:57584, edaravone, 89-25-8, 3-METHYL-1-PHENYL-2-PYRAZOLIN-5-ONE.
Documented regulatory listings: CIR / INCI: Cosmetic ingredients (Phenyl Methyl Pyrazolone) -> CIR (Cosmetic Ingredient Review); CIR / INCI: Hair dyeing.
7.7% of GHS notifications report no hazard classification (16 of 209).
Boiling Point: 549 °F at 105 mmHg (NTP, 1992); Boiling Point: 287; Boiling Point: 191 °C @ 17 MM HG; 287 °C @ 105 MM HG; Melting Point: 261 to 266 °F (NTP, 1992).
Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.
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