2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮（CAS 20354-26-1）：分子式 C9H6Cl2N2O3、分子量 261.06。
| CAS号 | 20354-26-1 |
|---|---|
| 分子式 | C9H6Cl2N2O3 |
| 分子量 | 261.06 |
| 熔点 | 123-124 °C |
| LogP | 2.7 |
| 应用领域 | 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]、Cancelled--no longer registered as a pesticide for use in the US、Farming (Pesticides) [Category: Industry]、The active ingredient is no longer contained in any registered pesticide products ... "cancelled."、Pre- and post-emergence control of annual broad-leaved weeds and some grasses incotton、garlic、citrus fruit、stone fruit、and nut crops.、Methods of Manufacturing: 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.、Formulations、Preparations: TECHNICAL GRADE、IS、95% PURE、WETTABLE POWDER (750 G AI、KG)、GRANULES (50 G、KG).、Mixed formulations: (methazole +) chlorthal-dimethyl、simazine. Wettable powder、granules、Probe: Herbicide is available as 75% wettable powder and as 5% granules.、General Manufacturing Information: 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、onions (>2 leaves) (2.5 kg、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. |
登记用途：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]、Cancelled--no longer registered as a pesticide for use in the US、Farming (Pesticides) [Category: Industry]、The active ingredient is no longer contained in any registered pesticide products ... "cancelled."、Pre- and post-emergence control of annual broad-leaved weeds and some grasses incotton、garlic、citrus fruit、stone fruit、and nut crops.、Methods of Manufacturing: 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.、Formulations、Preparations: TECHNICAL GRADE、IS、95% PURE、WETTABLE POWDER (750 G AI、KG)、GRANULES (50 G、KG).、Mixed formulations: (methazole +) chlorthal-dimethyl、simazine. Wettable powder、granules、Probe: Herbicide is available as 75% wettable powder and as 5% granules.、General Manufacturing Information: 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、onions (>2 leaves) (2.5 kg、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.。
2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮 是一种化工化合物，登记 CAS 号为 20354-26-1，分子式 C9H6Cl2N2O3（分子量 261.06）。
登记 CAS 号：20354-26-1
其分子式 C9H6Cl2N2O3 由 9 个碳、6 个氢、2 个氯、2 个氮、3 个氧 组成。
别名/同义词：2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮 · 2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione
2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮 的 CAS 登记号为 20354-26-1。
分子式 C9H6Cl2N2O3，分子量 261.06。
别名/同义词：2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮、2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione。
登记用途：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]、Cancelled--no longer registered as a pesticide for use in the US、Farming (Pesticides) [Category: Industry]、The active ingredient is no longer contained in any registered pesticide products ... "cancelled."、Pre- and post-emergence control of annual broad-leaved weeds and some grasses incotton、garlic、citrus fruit、stone fruit、and nut crops.、Methods of Manufacturing: 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.、Formulations、Preparations: TECHNICAL GRADE、IS、95% PURE、WETTABLE POWDER (750 G AI、KG)、GRANULES (50 G、KG).、Mixed formulations: (methazole +) chlorthal-dimethyl、simazine. Wettable powder、granules、Probe: Herbicide is available as 75% wettable powder and as 5% granules.、General Manufacturing Information: 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、onions (>2 leaves) (2.5 kg、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.。
2-(3,4-二氯苯基)-4-甲基-1,2,4-恶二唑烷二酮（CAS 20354-26-1）的独立参考数据，整理自公开化学数据库。
| 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 |
| 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 |
| Melting Point | 123-124 °C |
|---|---|
| Density | 1.24 at 25 °C |
| Vapor Pressure | 0.000001 [mmHg] |
| Vapor Pressure | 133 uPa at 25 °C |
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
| 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]
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].
数据来源：PubChem / Wikidata；与随货 COA 不一致时以 COA 为准。
English page: 2-(3,4-dichlorophenyl)-4-methyl-1,2,4-oxadiazolidinedione