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Basic Information
| CAS No.: | 2439-01-2 |
|---|---|
| Name: | Chinomethionate |
| Molecular Structure: | |
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|
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| Formula: | C10H6 N2 O S2 |
| Molecular Weight: | 234.302 |
| Synonyms: | Carbonicacid, dithio-, cyclic S,S-(6-methyl-2,3-quinoxalinediyl) ester (6CI,8CI);Carbonic acid, dithio-, cyclic S,S-ester with 6-methyl-2,3-quinoxalinedithiol(7CI); 6-Methyl-1,3-dithiolo[4,5-b]quinoxalin-2-one;6-Methyl-2,3-quinoxalinedithiol cyclic S,S-dithiocarbonate;6-Methyl-2-oxo-1,3-dithio[4,5-b]quinoxaline; BAY 36205; Bayer 36205; Bayer4964; Cetactaelate; Chinomethionat; Daisonet XL 21; Daisonet XL 21S; Forstan;MQD; Morestan; Morestan 2; Morestane; NSC 379587; Oxythioquinox;Quinomethionate; XL 21S |
| EINECS: | 219-455-3 |
| Density: | 1.553g/cm3 |
| Melting Point: | 171oC |
| Boiling Point: | 476.6oC at 760 mmHg |
| Flash Point: | 242.1oC |
| Solubility: | 1 mg l-1 (20 °C) |
| Hazard Symbols: |
 
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| Risk Codes: | 20/21/22-36-43-48/22-50/53-62 |
| Safety: | Moderately toxic by intraperitoneal, ingestion, and skin contact routes. A pesticide. When heated to decomposition it emits very toxic fumes of NOx and SOx. |
| PSA: | 99.33000 |
| LogP: | 2.57460 |
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Synthetic route
Conditions
| Conditions | Yield |
|---|---|
| In tetrahydrofuran at 20℃; for 15h; UV-irradiation; | 65% |
- Total:4 Page 1 of 1 1
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Chinomethionate
Chemistry
C.A.S. Number: 2439-01-2
Common Name: Oxythioquinox, Chinomethionate
Chemical Formula: 6-methyl-1,3-dithiolo(4,5-b)quinoxalin-2-one
Trade Name: Morestan
Chemical Code: 054101
Pesticide Type: Miticide, Fungicide, Insecticide
Chemical Class: Dithiocarbonate
MF: C10H6N2OS2
MW: 234.3
EINECS: 219-455-3
Common Name: Oxythioquinox, Chinomethionate
Chemical Formula: 6-methyl-1,3-dithiolo(4,5-b)quinoxalin-2-one
Trade Name: Morestan
Chemical Code: 054101
Pesticide Type: Miticide, Fungicide, Insecticide
Chemical Class: Dithiocarbonate
MF: C10H6N2OS2
MW: 234.3
EINECS: 219-455-3
History
Oxythioquinox was first registered in the U.S. in 1968 as an insecticide,miticide and fungicide used to control mites, mite eggs, and powdery mildew. Previously, most products were emulsifiable concentrates that were applied either through low volume concentrated spray from aircraft, or high volume diluted spray from ground equipment to a variety of agricultural and ornamental crops. Active products now are confined only to use on non-food crops such as landscape ornamentals, and in such places as urseries and greenhouses. Oxythioquinox is applied by conventional hand or machine operated sprayers.
On October 17, 1996, Bayer, the sole registrant, requested voluntary cancellation of all oxythioquinox food uses except citrus. Bayer submitted data to support the continued reregistration of Morestan 25WP (3125-117) and Morestan Solupak 25WP (3125-302) on citrus. They also requested cancellation of their remaining FIFRA section 24(c), state special local needs registrations.
On October 17, 1996, Bayer, the sole registrant, requested voluntary cancellation of all oxythioquinox food uses except citrus. Bayer submitted data to support the continued reregistration of Morestan 25WP (3125-117) and Morestan Solupak 25WP (3125-302) on citrus. They also requested cancellation of their remaining FIFRA section 24(c), state special local needs registrations.
Uses
in 1968,Oxythioquinox was first registered in the U.S. as an insecticide,miticide and fungicide used to control mites, mite eggs, and powdery mildew.
Toxicity Data With Reference
| 1. | orl-rat LD50:1100 mg/kg | WRPCA2 World Review of Pest Control. 9 (1970),119. | ||
| 2. | skn-rat LD50:500 mg/kg | GUCHAZ Guide to the Chemicals Used in Crop Protection 6 (1973),387. | ||
| 3. | ihl-rat LC50:3 g/m3/4H | PEMNDP Pesticide Manual. 9 (1991),133. | ||
| 4. | skn-rat LD50:500 mg/kg | GUCHAZ Guide to the Chemicals Used in Crop Protection 6 (1973),387. | ||
| 5. | ipr-rat LDLo:95 mg/kg | TXAPA9 Toxicology and Applied Pharmacology. 14 (1969),632. | ||
| 6. | orl-mus LDLo:1070 mg/kg | AECTCV Archives of Environmental Contamination and Toxicology. 14 (1985),111. | ||
| 7. | ipr-mus LD50:473 mg/kg | JPETAB Journal of Pharmacology and Experimental Therapeutics. 173 (1970),60. | ||
| 8. | orl-gpg LD50:1500 mg/kg | PCOC** Pesticide Chemicals Official Compendium ,Association of the American Pesticide Control Officials, Inc.(Topeka, KS.: )1966,769. |
RTECS FG1400000
In four of seven acute toxicity studies conducted, oxythioquinox was
classified as Toxicity Category III or IV.
In the primary eye irritation study, it was classified as Toxicity Category II. Oxythioquinox can cause irreversible eye damage. Also, some bystanders may experience a skin reaction similar to sun burn (UV light), particularly if wind is present during applications.
Consensus Reports
EPA Genetic Toxicology Program.
Safety Profile
Moderately toxic by intraperitoneal, ingestion, and skin contact routes. A pesticide. When heated to decomposition it emits very toxic fumes of NOx and SOx.
Hazard Codes Xn,N
Risk Statements 20/21/22-36-43-48/22-50/53-62
Safety Statements 24-37-60-61
RIDADR UN3077 9/PG 3
Hazard Codes Xn,N
Risk Statements 20/21/22-36-43-48/22-50/53-62
Safety Statements 24-37-60-61
RIDADR UN3077 9/PG 3