DACTHAL
chlorthal-dimethyl
CAS: 1861-32-1
Molecular Formula: C10H6Cl4O4
DACTHAL - Names and Identifiers
| Name | chlorthal-dimethyl |
| Synonyms | DACTHAL dacthal FATAL(R) DAC 893(R) CHLORTHAL-METHYL CHLORTHAL-DIMETHYL chlorthal-dimethyl CHLORTHAL-METHYL(R) DCPA METHYL ESTER(R) LABOTEST-BB LT00455685 Dimethyl tetrachloroterephthalate Tetrachloroterephthalic acid dimethyl ester dimethyl 2,3,5,6-tetrachlorobenzene-1,4-dicarboxylate Dacthal~DCPA~Tetrachloroterephthalic acid dimethyl ester |
| CAS | 1861-32-1 |
| EINECS | 217-464-7 |
| InChI | InChI=1/C10H6Cl4O4/c1-17-9(15)3-5(11)7(13)4(10(16)18-2)8(14)6(3)12/h1-2H3 |
DACTHAL - Physico-chemical Properties
| Molecular Formula | C10H6Cl4O4 |
| Molar Mass | 331.96 |
| Density | 1.6496 (rough estimate) |
| Melting Point | 155-156°C |
| Boling Point | 448.04°C (rough estimate) |
| Flash Point | 174.7°C |
| Water Solubility | 0.05 g/100 mL |
| Solubility | Chloroform (Slightly), Methanol (Slightly) |
| Vapor Presure | 2.5E-07mmHg at 25°C |
| Appearance | neat |
| Color | Pale Yellow to Pale Beige |
| Merck | 14,2839 |
| BRN | 1888840 |
| Storage Condition | -20°C |
| Refractive Index | 1.5282 (estimate) |
| Physical and Chemical Properties | melting point 155-156°C water-soluble 0.05g/100 mL |
| Use | Used as a pesticide intermediate |
DACTHAL - Risk and Safety
| Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
| WGK Germany | 2 |
| RTECS | WZ1500000 |
| HS Code | 29173990 |
| Toxicity | LD50 orally in rats: >3000 mg/kg (Bailey, White) |
DACTHAL - Reference Information
| NIST chemical information | Information provided by: webbook.nist.gov (external link) |
| EPA chemical information | Information provided by: ofmpub.epa.gov (external link) |
| biological activity | Chlorthal-dimethyl used as pesticide intermediates. |
| use | herbicide. It has significant activity on barnyard grass that germinates to the two-leaf stage, and also has a good control effect on pre-bud weeds such as dry land crabgrass. Used as pesticide intermediate |
| Production method | Use a strong methylating agent (such as diazomethane or dimethyl sulfate) to alkylate tetrachloro-terephthalic acid; or It is obtained by esterification of tetrachloro-terephthaloyl chloride with methanol. There are two main synthesis methods for the intermediate tetrachloro-terephthaloyl chloride. (1) It is obtained by chlorination, hydrolysis and on-ring chlorination of p-xylene side chain. (2) It is obtained by acyl chlorination and chlorination of terephthalic acid. |
| toxic substance data | information provided by: pubchem.ncbi.nlm.nih.gov (external link) |
Last Update：2024-04-09 21:21:28
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View History
DACTHAL
α-溴代异丁酰溴
六氟硅酸
Benzene, 1-(2-butoxyethoxy)-4-iodo-2,5-dimethyl-
Hexadecyl 2-(trimethylamino)ethyl phosphate
CHEMBRDG-BB 4011925
alpha-aMine-oMega-propionic acid triethylene glycol
α-溴代异丁酰溴
六氟硅酸
Benzene, 1-(2-butoxyethoxy)-4-iodo-2,5-dimethyl-
Hexadecyl 2-(trimethylamino)ethyl phosphate
CHEMBRDG-BB 4011925
alpha-aMine-oMega-propionic acid triethylene glycol