MERPHOS
- $405 - $1455
- Product name: MERPHOS
- CAS: 150-50-5
- MF: C12H27PS3
- MW: 298.51
- EINECS:205-761-4
- MDL Number:MFCD00128008
- Synonyms:TRIBUTYLPHOSPHORO-TRITHIOITE;Butyl phosphorotrithioite ((bus)3p);butylphosphorotrithioite ;butylphosphorotrithioite[(bus)3p] ;Deleaf defoliant;deleafdefoliant ;Easy off-D;easyoff-d
4 prices
Selected condition:
Brand
- American Custom Chemicals Corporation
- TRC
Package
- 1MG
- 10MG
- 25mg
- 50mg
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberAGR0000238
- Product descriptionMERPHOS 95.00%
- Packaging1MG
- Price$405
- Updated2021-12-16
- Buy
- ManufacturerAmerican Custom Chemicals Corporation
- Product numberAGR0000238
- Product descriptionMERPHOS 95.00%
- Packaging10MG
- Price$450
- Updated2021-12-16
- Buy
- ManufacturerTRC
- Product numberM257700
- Product descriptionMerphos
- Packaging25mg
- Price$845
- Updated2021-12-16
- Buy
- ManufacturerTRC
- Product numberM257700
- Product descriptionMerphos
- Packaging50mg
- Price$1455
- Updated2021-12-16
- Buy
Manufacturer | Product number | Product description | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|
American Custom Chemicals Corporation | AGR0000238 | MERPHOS 95.00% | 1MG | $405 | 2021-12-16 | Buy |
American Custom Chemicals Corporation | AGR0000238 | MERPHOS 95.00% | 10MG | $450 | 2021-12-16 | Buy |
TRC | M257700 | Merphos | 25mg | $845 | 2021-12-16 | Buy |
TRC | M257700 | Merphos | 50mg | $1455 | 2021-12-16 | Buy |
Properties
Melting point :100°C
Boiling point :115-134 °C(Press: 0.08 Torr)
Density :1.0200
solubility :Chloroform (Slightly), Dichloromethane (Slightly), Diethyl Ether (Slightly)
form :Liquid
Stability :Air Sensitive, Hygroscopic, Moisture Sensitive
EPA Substance Registry System :Merphos (150-50-5)
Boiling point :115-134 °C(Press: 0.08 Torr)
Density :1.0200
solubility :Chloroform (Slightly), Dichloromethane (Slightly), Diethyl Ether (Slightly)
form :Liquid
Stability :Air Sensitive, Hygroscopic, Moisture Sensitive
EPA Substance Registry System :Merphos (150-50-5)
Safety Information
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Signal word: | Warning | ||||||||||||||
Hazard statements: |
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Description
Merphos is an organothiophosphorus compound used as a defoliant but the active ingredient is no longer contained in any registered pesticide product in the US and in EU. Therefore, Environmental Protection Agency (EPA) is characterizing it as canceled.The status of merphos in the EU pesticide database is ‘Not Approved’ under the Regulation EC 1107/2009 and not authorized at national level in EU countries. However a maximum level of residues (MRL) is regulated in foods as the default MRL of 0.01 mg kg-1 according to Art 18(1)(b) Reg 396/2005.
Merphos was used to defoliate cotton at application rates of 1.1–2.2 kg active ingredient per acre and can induce leaf abscission in some other plants, such as roses and hydrangeas. It was particularly suited for total defoliation of cotton preparatory to machine harvesting because the natural action of the substance causes the leaves to drop in a relatively green state with fresh weight adequate to cause them to fall to the ground.
The technical product used to have 95% purity. Formulation used to contain 720 g active ingredient per liter or being an emulsifiable concentrate containing 6 lb per gallon.
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