| Identification | Back Directory | [Name]
MCPA-THIOETHYL | [CAS]
25319-90-8 | [Synonyms]
HERBIT
hok7501
OK 7501
FENOBIT
ZERO ONE
tripioncb
Fenothiol
PHENOTHIOL
MCPA-thioethy
MCPA-THIOETHYL
phenothiol (jmaf)
PHENOTHIOL STANDARD
mcpa-thioethyl (bsi, e-iso, f-iso)
S-Ethyl 4-chloro-o-tolyloxythioacetate
S-Ethyl-2-methyl-4-chlorophenoxythioacetate
S-ETHYL(4-CHLORO-2-METHYLPHENOXY)THIOACETATE
ethylesterkyseliny4-chlor-2-tolyloxythiooctove
S-ethyl (4-chloro-2-methylphenoxy)ethanethioate
((4-chloro-o-tolyl)oxy)thio-aceticacis-ethylester
(4-Chloro-2-methylphenyl)oxythioacetic acid S-ethyl
2-methyl-4-chlorophenoxythiolaceticacids-ethylester
(4-chloro-2-methylphenoxy)-ethanethioicacis-ethylester
Ethanethioic acid, (4-chloro-2-methylphenoxy)-, S-ethyl ester
Ethanethioic acid, 2-(4-chloro-2-methylphenoxy)-, S-ethyl ester | [EINECS(EC#)]
246-831-4 | [Molecular Formula]
C11H13ClO2S | [MDL Number]
MFCD01671920 | [MOL File]
25319-90-8.mol | [Molecular Weight]
244.74 |
| Chemical Properties | Back Directory | [Melting point ]
41.5℃ | [Boiling point ]
165 °C | [density ]
1.2214 (estimate) | [storage temp. ]
0-6°C | [form ]
neat | [BRN ]
13399500 | [Henry's Law Constant]
4.5×10-1 mol/(m3Pa) at 25℃, Mackay et al. (2006) | [Major Application]
agriculture
environmental | [InChI]
1S/C11H13ClO2S/c1-3-15-11(13)7-14-10-5-4-9(12)6-8(10)2/h4-6H,3,7H2,1-2H3 | [InChIKey]
AZFKQCNGMSSWDS-UHFFFAOYSA-N | [SMILES]
CCSC(=O)COc1ccc(Cl)cc1C | [EPA Substance Registry System]
MCPA-thioethyl (25319-90-8) |
| Safety Data | Back Directory | [Hazard Codes ]
Xn,N | [Risk Statements ]
22-50/53 | [Safety Statements ]
60-61 | [RIDADR ]
UN 3077 9 / PGIII | [WGK Germany ]
3 | [Storage Class]
11 - Combustible Solids | [Hazard Classifications]
Acute Tox. 4 Oral
Aquatic Acute 1
Aquatic Chronic 1
STOT RE 2 | [Toxicity]
mouse,LD50,intraperitoneal,1027mg/kg (1027mg/kg),Japan Pesticide Information. Vol. (40), Pg. 32, 1982. |
| Hazard Information | Back Directory | [Uses]
MCPA-thioethyl may be used as an analytical reference standard for the quantification of the analyte in crops and evironmental matrices using different chromatography techniques. | [Definition]
ChEBI: MCPA-thioethyl is an aromatic ether. It has a role as a phenoxy herbicide. | [Production Methods]
The commercial production of MCPA-thioethyl follows a concise two-step. First, MCPA acid (4-chloro-2-methylphenoxyacetic acid, produced via Williamson etherification of 4-chloro-o-cresol with chloroacetic acid) is converted to its acid chloride using thionyl chloride in toluene to yield the intermediate. This acid chloride is then reacted with ethanethiol or its sodium salt in dichloromethane in the presence of triethylamine, forming the thioester via rapid nucleophilic substitution; the mixture is washed with dilute sodium bicarbonate and water, then vacuum-distilled to obtain technical-grade MCPA-thioethyl. | [General Description]
MCPA-thioethyl is a selective, systemic phenoxyacetic herbicide used for the postemergence control of annual and perennial broadleaved weeds in cereals. Its mode of action involves the inhibition of growth in meristematic region. | [Mechanism of action]
Selective, systemic with translocation. Synthetic auxin. | [Pesticide Type]
Herbicide; Plant Growth Regulator |
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Sigma-Aldrich
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021-61415566 800-8193336 |
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https://www.sigmaaldrich.cn |
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Alfa Chemistry
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https://www.alfa-chemistry.com |
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