1-PHENYL-3-METHYL-5-PYRAZOLONE

Name: 1-PHENYL-3-METHYL-5-PYRAZOLONE
Brand: 济南圣和化工有限公司

CAS 89-25-8C10H10N2OMW 174.20

1-PHENYL-3-METHYL-5-PYRAZOLONE，CAS 登记号 89-25-8，由济南圣和化工有限公司现货供应，可提供纯度按批次COA提供(不公开发布) 的规格，下游主要用于Organic Chemicals。支持样品与小批量试用，批量价格请联系我们获取，验收以批次 COA 为准。

规格参数

CAS号89-25-8

分子式C10H10N2O

分子量174.20

熔点261 to 266 °F (NTP, 1992)

沸点549 °F at 105 mmHg (NTP, 1992)

LogP1.12

纯度按批次COA提供(不公开发布)

包装按订单/批次确认(不公开发布)

应用领域Organic Chemicals

类别Organic Chemicals

用途与场景

Organic Chemicals

包装与供货

包装规格按订单/批次确认(不公开发布)

纯度规格按批次COA提供(不公开发布)

储存条件密封、阴凉干燥处保存

供货周期现货/按订单安排

文件与支持

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常见问题

在哪里能查到 1-PHENYL-3-METHYL-5-PYRAZOLONE 的 CAS 号？

本页已列出 1-PHENYL-3-METHYL-5-PYRAZOLONE 的 CAS 号：89-25-8，可与随货 COA 核对。

可以提供哪些规格和包装？

常见纯度为按批次COA提供(不公开发布)，包装形式为按订单/批次确认(不公开发布)，特殊规格可在询价时说明。

1-PHENYL-3-METHYL-5-PYRAZOLONE 一般用在什么产品里？

主要涉及Organic Chemicals。

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PubChem 公开数据

Description

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.

Identification

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

Computed Descriptors

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

Physical & Chemical Properties

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

Physical description & handling notes

1-phenyl-3-methyl-5-pyrazolone appears as white to off-white powder or crystals. (NTP, 1992)
White solid; [Merck Index] Light yellow odorless powder; [Alfa Aesar MSDS]
MONOCLINIC PRISMS FROM WATER
WHITE POWDER OR CRYSTALS
less than 1 mg/mL at 73 °F (NTP, 1992)
SOL IN HOT WATER & HOT ALCOHOL; SLIGHTLY SOL IN BENZENE; INSOL IN PETROLEUM ETHER

Regulatory Status

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 Hazard Classification

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]

Documented Uses

CIR ingredient: Phenyl Methyl Pyrazolone
Used as an intermediate for dyes and drugs, reagent to detect cyanide, and developer for diazotized direct dyes; [HSDB] Used in the treatment of strokes; [Merck Index] Used for synthesis in the chemical industry and in the textile processing industry; [IUCLID] Used in hair dyes; [ExPub: EC]
Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
Dressing Hair [Category: Other]
INTERMEDIATE FOR DYES & DRUGS; SENSITIVE REAGENT FOR DETECTION OF CYANIDE
CHEM INT FOR DYES (EG, FOR PYRAZOLONE PIGMENTS), DRUGS (EG, ANTIPYRINE & AMINOPYRINE), DEVELOPER FOR DIAZOTISED DIRECT DYES, REAGENT FOR DETECTION OF CYANIDE

Synonyms

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

Frequently Asked Questions

What are the CAS number and molecular formula of 1-PHENYL-3-METHYL-5-PYRAZOLONE?

CAS 89-25-8; molecular formula C10H10N2O; molecular weight — g/mol.

What other names is 1-PHENYL-3-METHYL-5-PYRAZOLONE known by?

MCI-186, MCI 186, RefChem:57584, edaravone, 89-25-8, 3-METHYL-1-PHENYL-2-PYRAZOLIN-5-ONE.

What is the regulatory status of 1-PHENYL-3-METHYL-5-PYRAZOLONE?

Documented regulatory listings: CIR / INCI: Cosmetic ingredients (Phenyl Methyl Pyrazolone) -> CIR (Cosmetic Ingredient Review); CIR / INCI: Hair dyeing.

Is 1-PHENYL-3-METHYL-5-PYRAZOLONE classified as hazardous?

7.7% of GHS notifications report no hazard classification (16 of 209).

What are the key physical properties of 1-PHENYL-3-METHYL-5-PYRAZOLONE?

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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