2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮

Name: 2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮
Brand: 济南圣和化工有限公司

CAS 20354-26-1C9H6Cl2N2O3MW 261.06

本页收录 2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮，CAS 登记号为 20354-26-1，分子式 C9H6Cl2N2O3，分子量 261.06，归类于有机化学品。作为主营产品之一，济南圣和化工有限公司可提供从公斤级到吨级的稳定供货，随货附 COA 与质检资料。

产品概览

CAS号	20354-26-1
分子式	C9H6Cl2N2O3
分子量	261.06
熔点	123-124 °C
LogP	2.7
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	有机化学品
类别	有机化学品

应用领域

有机化学品

2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮主要应用于有机化学品。具体使用工况下的添加量与规格要求，欢迎与技术团队沟通确认。

包装与储存

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

运输常规化工运输

样品可协商提供

交期现货/按订单安排

采购提示：本产品按按订单/批次确认(不公开发布)起订发货，收到货物后请先核对包装完好性再行入库。储存条件为阴凉干燥、密封保存；如需 MSDS 或运输说明，可在询价时一并索取。

质量与文件

每批产品随货提供 COA（分析证书）；可按需提供 MSDS/技术数据表及第三方检测报告。纯度与包装以批次 COA 及订单确认为准。

关于供应商

选择济南圣和化工有限公司的理由：产品信息透明（含 CAS、分子式、理化参数）、报价响应快（一个工作日内）、单证齐全（COA/MSS/质检资料按需提供）、支持批量与长期协议供货。如需 2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮以外的配套原料，也欢迎一并列出需求清单。

常见问题

2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮的 CAS 号是多少？

2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮的 CAS 号为 20354-26-1。

该产品的纯度和包装规格是什么？

常规纯度规格为按批次COA提供(不公开发布)，包装为按订单/批次确认(不公开发布)，随货提供 COA。

2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮有什么用途？

主要应用于有机化学品。

如何购买或获取报价？

请发送邮件至 info@591daili.com 或通过 WhatsApp 联系，注明产品名称、CAS 号与需求数量，一个工作日内回复报价。供应商：济南圣和化工有限公司。

PubChem 公开数据

Description

2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione · CAS 20354-26-1 · C9H6Cl2N2O3. UNII E35M7EMD3V. Melting Point: 123-124 °C; Density: 1.24 at 25 °C; Vapor Pressure: 0.000001 [mmHg].

Identification

CAS Registry Number	20354-26-1
PubChem CID	4690
Molecular formula	C9H6Cl2N2O3
IUPAC name	2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidine-3,5-dione
UNII (FDA)	E35M7EMD3V

Computed Descriptors

Molecular Weight	261.06
XLogP3	2.7
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	3
Rotatable Bond Count	1
Exact Mass	259.9755474
Monoisotopic Mass	259.9755474
Topological Polar Surface Area	49.9
Heavy Atom Count	16
Formal Charge	0

Physical & Chemical Properties

Melting Point	123-124 °C
Density	1.24 at 25 °C
Vapor Pressure	0.000001 [mmHg]
Vapor Pressure	133 uPa at 25 °C

Physical description & handling notes

Methazole appears as colorless crystals to light tan solid. Non corrosive. Herbicide.
White solid; Technical material: Light tan solid; [HSDB]
White solid
Decomposes before boiling
@ 25 °C: 1.5 MG/L WATER, 40 G/L ACETONE, 6.5 G/L METHANOL, 55 G/L XYLENE
@ 25 °C in ethanol approx equal to 1.0% wt/wt

GHS Hazard Classification

Reported hazard statements	H302, H312, H315, H319, H411

H302: Harmful if swallowed [Warning Acute toxicity, oral]

H312: Harmful in contact with skin [Warning Acute toxicity, dermal]

Documented Uses

Used as pre- and post-emergence herbicide for control of annual broad-leaved weeds and some grasses in cotton, onions, potatoes, citrus and stone fruit, vines, lucerne, tea, and nuts; [HSDB]
Pre- and post-emergence control of annual broad-leaved weeds and some grasses incotton, garlic, onions, potatoes, citrus fruit, stone fruit, vines, lucerne, tea, and nut crops.
PRODUCED BY CYCLIZATION, WITH A HALOFORMATE, OF 1-(3,4-DICHLOROPHENYL)-1-HYDROXY-3-METHYLUREA, WHICH IS FORMED BY REACTION OF N-(3,4-DICHLOROPHENYL)HYDROXYLAMINE WITH METHYL ISOCYANATE.
METHAZOLE APPEARS TO BE A PROHERBICIDE WHILE DIURON & LINURON ACT DIRECTLY & VIA METABOLITES AS PHOTOSYNTHETIC INHIBITORS.
It is a selective herbicide effective against certain grasses and many broad-leaved weeds: pre-emergence in garlic and potatoes (1-2 kg ai/ha); as a directed spray on soil or emerged weeds in citrus, stone-fruits, nuts, tea and established vines (6 kg/ha) and on cotton 15 cm tall (1-2 kg/ha), onions (>2 leaves) (2.5 kg/ha), newly seeded or winter-dormant lucerne (>1 yr old) (2.25 kg/ha). It is preferably applied to moist soil; lower rates are applicable to light sandy soils.
LITTLE OR NO INTACT HERBICIDE WAS TRANSLOCATED FROM ROOTS TO LEAVES BUT RADIOACTIVITY IN LEAVES ACCOUNTED FOR 80-90% OF METHANOL-SOLUBLE LABEL @ 47 DAYS POSTTREATMENT. MOST OF THIS (14)C WAS RECOVERED AS DCPU /1-(3,4-DICHLOROPHENYL)UREA/ (50-60%) & UNIDENTIFIED POLAR METABOLITE (30-40%).

Synonyms

Methazole; 20354-26-1; Metazole; Oxydiazol; Bioxone; Paxilon; Tunic; Metazol; Mezopur; CHLORMETHAZOLE; 2-(3,4-Dichlorophenyl)-4-methyl-1,2,4-oxadiazolidine-3,5-dione; Probe 75; VCS 438; E35M7EMD3V; DTXSID1040293; RefChem:811715

Frequently Asked Questions

What are the CAS number and molecular formula of 2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione?

CAS 20354-26-1; molecular formula C9H6Cl2N2O3; molecular weight — g/mol.

What other names is 2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione known by?

Methazole, 20354-26-1, Metazole, Oxydiazol, Bioxone, Paxilon.

Is 2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione classified as hazardous?

Hazard statements reported: H302, H312, H315, H319, H411.

What are the key physical properties of 2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione?

Melting Point: 123-124 °C; Density: 1.24 at 25 °C; Vapor Pressure: 0.000001 [mmHg]; Vapor Pressure: 133 uPa at 25 °C.

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.