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チオりん酸ジメチル=4-ニトロフェニル
メタシド · メチルパラチオン · メトロン · チオりん酸=O,O-ジメチル=O-(4-ニトロフェニル) · チオりん酸O,O-ジメチルO-[p-ニトロフェニル] · ダルフ · デスメチルフェニトロチオン · ホスホロチオ酸O,O-ジメチルO-(4-ニトロフェニル)
識別子と物理属性
| CAS No. | 298-00-0 |
|---|---|
| 分子式 | C8H10NO5PS |
| 平均分子量 | 263.21 g/mol |
| 単同位体質量 | 263.00173059 g/mol |
| SMILES | COP(=S)(OC)Oc1ccc([N+](=O)[O-])cc1 |
| InChIKey | RLBIQVVOMOPOHC-UHFFFAOYSA-N |
| PubChem CID | 4130 |
| ChEMBL | CHEMBL346516 |
| ChEBI | CHEBI:38746 |
| EC No. | 206-050-1 |
| DTXSID | DTXSID1020855 |
| 現地名 | チオりん酸ジメチル=4-ニトロフェニル |
化学・物理的性質
| XLogP | 2.9 |
|---|---|
| 極性表面積 | 106 |
| 水素結合供与体数 | 0 |
| 水素結合受容体数 | 6 |
| 回転可能結合数 | 4 |
| 重原子数 | 16 |
| 形式電荷 | 0 |
| 複雑度 | 279 |
| LogP（分配係数） | log Kow = 2.862-3 |
| 臭い | Pungent, garlic-like odorOdorless |
| 密度 | 1.358 at 68 °F (EPA, 1998) - Denser than waterwill sink1.358 g/cu cm at 20 °C1.4 g/cm³1.361.358 @ 20°C |
| Color/Form | CrystalsWhite crystalline solidCrystals from cold methanolWhite to tan, crystalline solid or powder [Note: The commercial product in xylene is a tan liquid]Colorless crystals |
| 溶解度 | less than 1 mg/mL at 73 °F (NTP, 1992)In water, 37.7 mg/L at 20 °CSoluble in organic solventsReadily soluble in common organic solvents, e.g. dichloromethane, toluene >200, hexane 10 to 20 (all in g/L at 20 °C). Sparingly soluble in petroleum ether and some types of mineral oil.Readily soluble in 2-propanol. Hardly soluble in n-hexaneSolubility in water, g/100ml: 0.006Chloroform: Slightly Soluble,Methanol: Slightly Soluble0.005g/100mL |
| 引火点 | commercial product, containing xylene, has flashpoint of 115F (EPA, 1998)42 °C (Closed cup)46.1°C |
| 沸点 | 246 °F at 0.13 mmHg (NTP, 1992)154 °C at 136 Pa289 °F143°C (1.0 mmHg) |
| Decomposition | When heated to decomp it emits very toxic fumes of /nitrogen oxides, phosphorous oxides, and sulfur oxides/.120 °C |
| 融点 | 99 to 100 °F (EPA, 1998)35.8 °CMP: 37-38 °C35-38 °C99 °F36°C |
| 蒸気密度 | 9.1 (NTP, 1992) - Heavier than airwill sink (Relative to Air) |
| 臭気閾値 | Odor Threshold Low: 0.0012 [mg/m3]Odor threshold from AIHA0.1328 mg/cu m odor low and high.1.23X10-2 ppm (detection in waterpurity not specified) |
| 蒸気圧 | 9.7e-06 mmHg at 68 °F (EPA, 1998)0.0000035 [mmHg]3.5X10-6 mm Hg at 25 °CVapor pressure, Pa at 20 °C: 0.0010.00001 mmHg4.1×10-4 Pa (20 °C) |
| 屈折率 | nD25 1.5367 |
| 貯蔵条件 | APPROX 4°C |
| 外観・状態 | 個体 |
| BRN | 8905814 |
| ヘンリー定数 | 5.0×101 mol/(m3Pa) at 25℃, Mackay and Shiu (1981) |
| 安定性 | 安定。可燃性。 |
| CAS データベース | 298-00-0(CAS DataBase Reference) |
| NISTの化学物質情報 | Phosphorothioic acid, o,o-dimethyl-o-p-nitrophenyl ester(298-00-0) |
| EPAの化学物質情報 | Methyl parathion (298-00-0) |
化学的特性
Methyl parathion is a white to yellow-brown, crystalline solid with a garlic odor.It is slightly soluble in water and has a low vapor pressure (U.S. EPA, 2006b).
安全性と法規制
| GHS 分類 | DangerH226: Flammable liquid and vapor [Warning Flammable liquids]H300: Fatal if swallowed [Danger Acute toxicity, oral]H311: Toxic in contact with skin [Danger Acute toxicity, dermal]H330: Fatal if inhaled [Danger Acute toxicity, inhalation]H373 **: May causes damage to organs through prolonged or repeated exposure [Warning Specific target organ toxicity, repeated exposure]H400: Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard]H410: Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]P210, P233, P240, P241, P242, P243, P260, P262, P264, P270, P271, P273, P280, P284, P301+P316, P302+P352, P303+P361+P353, P304+P340, P316, P319, P320, P321, P330, P361+P364, P370+P378, P391, P403+P233, P403+P235, P405, and P501 (click each P-code to see the statement) |
|---|---|
| 規制情報 | Hazard Traits - Developmental ToxicityEnvironmental toxNeurotoxicityAuthoritative List - ATSDR NeurotoxicantsCECBP - Priority ChemicalsCWA 303(d)Report - if used as a fragrance or flavor ingredientRegulation (EC) No 1107/2009 (amended)03/166/ECThe New Jersey Worker and Community Right to Know Act requires public and private employers to provide information about hazardous substances at their workplaces. (N.J.S.A. 34:5A-1 et. seq.) |
| その他の安全情報 | IMAP assessments - Phosphorothioic acid, O,O-dimethyl O-(4-nitrophenyl) ester: Environment tier I assessmentIMAP assessments - Phosphorothioic acid, O,O-dimethyl O-(4-nitrophenyl) ester: Human health tier I assessment |
| 輸送ラベル（DOT） | Poison Flammable Liquid |
| 火災危険 | Poisonous gases are produced in fire and when heated. Decomposition may lead to sufficient internal pressure to cause the container to rupture violently. Avoid oxidizing materials. Unstable. High temperatures (120F) cause decomposition. (EPA, 1998)Combustible. Liquid formulations containing organic solvents may be flammable. Gives off irritating or toxic fumes (or gases) in a fire. |
| 健康有害性 | This material is extremely toxic |
用途
用途
農薬(殺虫剤)
使用
Parathion-methyl is an derivative of Parathion (P192220), an organophosphate insecticide used on cotton, rice and fruit trees.
一般的な説明
Methyl parathion is a white crystalline solid dissolved in a liquid solvent carrier. The commercial product is a tan liquid (xylene solution) with a pungent odor. Parathion-methyl is slightly soluble to insoluble in water. Usually with the liquid solvent Parathion-methyl is a combustible liquid. Parathion-methyl is toxic by inhalation, ingestion and skin absorption. Parathion-methyl is used as an insecticide.