RE-4355
naled
CAS: 300-76-5
Molecular Formula: C4H7Br2Cl2O4P
RE-4355 - Names and Identifiers
| Name | naled |
| Synonyms | BRP naled BROMEX DIBROM RE-4355 Naled E.C. BROMCHLOPHOS DIBROM (NALED) 1,2-DIBROMO-2,2-DICHLOROETHYL DIMETHYL-PHOSPHATE 1,2-dibromo-2,2-dichloroethyl dimethyl phosphate O,O'-DIMETHYL-1,2-DIBROMO-2,2-DICHLOROETHYL PHOSPHATE |
| CAS | 300-76-5 |
| EINECS | 206-098-3 |
| InChI | InChI=1/C4H7Br2Cl2O4P/c1-10-13(9,11-2)12-3(5)4(6,7)8/h3H,1-2H3 |
RE-4355 - Physico-chemical Properties
| Molecular Formula | C4H7Br2Cl2O4P |
| Molar Mass | 380.78 |
| Density | 1.96 g/cm3 |
| Melting Point | 212℃ (decomposition) |
| Boling Point | 110℃ (0.5 Torr) |
| Flash Point | 119.4°C |
| Water Solubility | 2000mg l-1(20 °C) |
| Solubility | Freely soluble in ketone, alcohols, aromatic and chlorinated hydrocarbons but sparingly soluble inpetroleum solvents and mineral oils (Windholz et al., 1983) |
| Vapor Presure | 2 (quoted, Verschueren, 1983) |
| Appearance | solid |
| Specific Gravity | 1.96 (20℃) |
| Exposure Limit | NIOSH REL: TWA 3 mg/m3, IDLH 200 mg/m3; OSHA PEL: TWA 3mg/m3; ACGIH TLV: TWA 3 mg/m3. |
| Merck | 13,6384 |
| BRN | 2049930 |
| Storage Condition | 0-6°C |
| Refractive Index | 1.5108 (28℃) |
| Physical and Chemical Properties | White crystals. The melting point is 26 ℃, the boiling point is 110 ℃(6.65 × 10-2kPa), and the relative density is 1.96(20/4 ℃). Soluble in benzene, ketone, alcohol, ether, in aliphatic hydrocarbons only 1%, insoluble in water. Slightly spicy smell. |
| Use | A new, high-efficiency, low-toxicity, low-residue insecticide and acaricide |
RE-4355 - Risk and Safety
| Risk Codes | R21/22 - Harmful in contact with skin and if swallowed. R36/38 - Irritating to eyes and skin. R50 - Very Toxic to aquatic organisms R25 - Toxic if swallowed R21 - Harmful in contact with skin |
| Safety Description | S36/37 - Wear suitable protective clothing and gloves. S61 - Avoid release to the environment. Refer to special instructions / safety data sheets. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. |
| UN IDs | 3018 |
| WGK Germany | 3 |
| RTECS | TB9450000 |
| HS Code | 29199000 |
| Hazard Class | 6.1(a) |
| Packing Group | I |
| Toxicity | LD50 in male rats (mg/kg): 250 orally; 800 dermally (Gaines) |
RE-4355 - Reference Information
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| use | this product is a systemic insecticide and acaricide, which has the effects of contact killing, stomach toxicity and certain fumigation effect. The oral LD50 of male rats is 250mg/kg. a new type of insecticide and acaricide with high efficiency, low toxicity and low residue is a quick-acting, touch-killing and gastric toxicity insecticide and acaricide, which is used to control pests of vegetables, fruit trees and other crops to be harvested |
| production method | 232.6g dichlorvos and 0.4g benzoyl peroxide are added into carbon tetrachloride, stirred and heated to 80 ℃, and then bromine 179.4 ℃ g is added dropwise. After adding, keep 80 ℃ to continue the reaction. After the reaction is over, cool down and remove carbon tetrachloride under reduced pressure to obtain phosphorus dibromide. |
| category | pesticide |
| toxicity classification | highly toxic |
| acute toxicity | oral-rat LD50: 92 mg/kg; Oral-mouse LD50: 222 mg/kg |
| stimulation data | skin-rabbit 500 mg/24 day weight |
| flammability hazard characteristics | open flame is combustible; it decomposes toxic phosphorus oxide and halide gas when heated |
| storage and transportation characteristics | warehouse ventilation and low temperature drying; separate from food raw materials storage and transportation |
| fire extinguishing agent | sand, dry powder, foam, water |
| occupational standard | TWA 3 mg/m3; STEL 6 mg/m3 |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
| immediate life-threatening and health concentration | 200 mg/m3 |
Last Update：2024-04-10 22:29:15
