(2R)-2-(2,4-dichlorophenoxy)propanoic acid
2-(2,4-Dichlorophenoxy)propionic acid
CAS: 120-36-5;7547-66-2
Molecular Formula: C9H8Cl2O3
(2R)-2-(2,4-dichlorophenoxy)propanoic acid - Names and Identifiers
(2R)-2-(2,4-dichlorophenoxy)propanoic acid - Physico-chemical Properties
| Molecular Formula | C9H8Cl2O3 |
| Molar Mass | 235.06 |
| Density | 1.3965 (rough estimate) |
| Melting Point | 110-112°C(lit.) |
| Boling Point | 335.78°C (rough estimate) |
| Flash Point | 164.5°C |
| Water Solubility | 829mg/L(25 ºC) |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 1.9E-05mmHg at 25°C |
| Appearance | neat |
| Color | Off-White to Pale Beige |
| Merck | 14,3078 |
| BRN | 2213812 |
| pKa | 3.03±0.10(Predicted) |
| Storage Condition | APPROX 4°C |
| Refractive Index | 1.5000 (estimate) |
| Physical and Chemical Properties | Colorless crystals. Melting point 117.5-118.1 °c. In 20 deg C water solubility of 350ppm, soluble in most organic solvents. |
(2R)-2-(2,4-dichlorophenoxy)propanoic acid - Risk and Safety
| Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R38 - Irritating to the skin R41 - Risk of serious damage to eyes R36/37/38 - Irritating to eyes, respiratory system and skin. R20/21/22 - Harmful by inhalation, in contact with skin and if swallowed. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves. S37/39 - Wear suitable gloves and eye/face protection |
| UN IDs | UN 3077 9 / PGIII |
| WGK Germany | 2 |
| RTECS | UF1050000 |
| TSCA | Yes |
| HS Code | 29189990 |
| Hazard Class | IRRITANT |
| Packing Group | III |
| Toxicity | LD50 oral in rat: 344mg/kg |
(2R)-2-(2,4-dichlorophenoxy)propanoic acid - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| EPA chemical substance information | information provided by: ofmpeb.epa.gov (external link) |
| purpose | is a post-emergence herbicide. It is effective for controlling the weeds of the genus Polygonum in grain fields. |
| production method | is obtained by condensation of 2, 4-dichlorophenol sodium salt and α-chloropropionic acid. The product is a mixture of two optical isomers, but only the D-isomer has biological activity. |
| category | pesticide |
| toxicity grade | high toxicity |
| Acute toxicity | oral-rat LD50: 344 mg/kg; Oral-mouse LD50: 309 mg/kg |
| flammability hazard characteristics | thermal decomposition of toxic chloride gases |
| storage and transportation characteristics | The warehouse is ventilated and dried at low temperature; It is stored and transported separately from food raw materials |
| fire extinguishing agent | Sand, dry powder, foam |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-10 22:29:15
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View History
(2R)-2-(2,4-dichlorophenoxy)propanoic acid
7-ACETY BACCATIN三期
4-Trifluoromethyl benzoyl chloride
O-CHLOROBENZOIC ACID METHYL ESTER
Methyl 1-Boc-4-aMinoMethylpiperidine-4-carboxylate
FEMA 2436
Escholine chloride
1-环丙基-4-苯氧基苯
12-OXYSTEARIC ACID SODIUM SALT
蓝色葡聚糖2000
7-ACETY BACCATIN三期
4-Trifluoromethyl benzoyl chloride
O-CHLOROBENZOIC ACID METHYL ESTER
Methyl 1-Boc-4-aMinoMethylpiperidine-4-carboxylate
FEMA 2436
Escholine chloride
1-环丙基-4-苯氧基苯
12-OXYSTEARIC ACID SODIUM SALT
蓝色葡聚糖2000