1,2,4-Tributylphosphorotrithioate
- CAS No.
- 78-48-8
- Chemical Name:
- 1,2,4-Tributylphosphorotrithioate
- Synonyms
- DEF;TBTP;DEF 6;DEF(R);DEGREEN;B-1,776;Butifos;Fosfall;Butiphos;C1orf107
- CBNumber:
- CB1303843
- Molecular Formula:
- C12H27OPS3
- Molecular Weight:
- 314.51
- MOL File:
- 78-48-8.mol
- Modify Date:
- 2023/5/15 10:43:34
Melting point | <-25° |
---|---|
Boiling point | bp0.3 150°; bp4 166.5° |
Density | d204 1.0552 |
refractive index | nD20 1.534 |
storage temp. | 0-6°C |
solubility | Chloroform (Slightly), Methanol (Slightly) |
form | Oil |
color | Colourless |
CAS DataBase Reference | 78-48-8 |
NIST Chemistry Reference | S,s,s-tributyl phosphorotrithioate(78-48-8) |
EPA Substance Registry System | Tribufos (78-48-8) |
SAFETY
Risk and Safety Statements
Symbol(GHS) | GHS06,GHS09 |
---|---|
Signal word | Danger |
Hazard statements | H301-H310-H410 |
Precautionary statements | P273-P280-P301+P310-P302+P350-P310-P501 |
Hazard Codes | T,N |
Risk Statements | 24/25-50/53 |
Safety Statements | 36/37-45-61-60 |
RIDADR | UN 2811 |
RTECS | TG5425000 |
HazardClass | 6.1(a) |
PackingGroup | II |
Toxicity | LD50 in male, female rats (mg/kg): 233, 150 orally; 360, 168 dermally (Gaines) |
1,2,4-Tributylphosphorotrithioate price More Price(1)
Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
---|---|---|---|---|---|---|---|
Sigma-Aldrich(India) | SAB1302859 | ANTI-DEF (N-TERM) antibody produced in rabbit IgG fraction of antiserum, buffered aqueous solution | 78-48-8 | 400μL | ₹47796.6 | 2022-06-14 | Buy |
Product number | Packaging | Price | Buy |
---|---|---|---|
SAB1302859 | 400μL | ₹47796.6 | Buy |
1,2,4-Tributylphosphorotrithioate Chemical Properties,Uses,Production
Description
DEF is a cholinesterase-inhibiting organophosphorus pesticide compound used as a cotton defoliant that was registered in 1960.DEF is a colorless to pale-yellow transparent liquid with a skunk-like odor.It is completely miscible with n-hexane, dichloromethane, toluene, and 2-propanol and has an octanol–water partition coefficient of 3.31×105 at 25°C. DEF toxicity is primarily attributed to inhibition of various esterases, including acetylcholinesterase (AChE), butyrylcholinesterase (BuChE), neuropathic target esterase (NTE), and carboxylesterase, resulting in increased accumulation of endogenous acetylcholine (ACh) in cholinergic nerve terminals and related effector organs.
Chemical Properties
Tribufos is a colorless to yellow liquid. Tribufos is relatively stable to acids and heat and is hydrolyzed slowly under alkaline conditions. Tribufos has a mercaptan or skunk-like odor. Tribufos has a mercaptan or skunk-like odor. Practically insoluble in water (2.3×10-4 g/ 100 mL); completely miscible in dichloromethane, n-hexane, 2-propanol, toluene.
Uses
1,2,4-Tributylphosphorotrithioate is a defoliant for cotton.
General Description
Colorless to pale yellow liquid with mercaptan-like odor. Insoluble in water; soluble in aliphatic, aromatic, and chlorinated hydrocarbons.. Used as a growth regulator.
Air & Water Reactions
Insoluble in water. Hydrolyzed slowly by alkaline conditions.
Reactivity Profile
An organophosphate derivative. Organophosphates are susceptible to formation of highly toxic and flammable phosphine gas in the presence of strong reducing agents such as hydrides. Partial oxidation by oxidizing agents may result in the release of toxic phosphorus oxides.
Hazard
Cholinesterase inhibitor.
Agricultural Uses
Herbicide, Defoliant, Plant growth regulator: Tribufos is an organophosphate defoliant used for cotton crops. It is specifically used to defoliate cotton in preparation for machine harvesting. It was first registered in the United States in 1961. Not approved for use in EU countries . Registered for use in the U.S.
Trade name
B-1776®; BUTIFOS®; BUTIPHOS®[C]; CHEMAGRO® 1776; CHEMAGRO® B-1776; DE- GREEN®; DEF®; DEF DEFOLIANT®; DELEAFDEFOLIANT®; EASY OFF®-D; E-Z-OFF® D; FOLEX® 6EC FOS-FALL® A; ORTHO® phosphate defoliant
Safety Profile
A poison by ingestion, skin contact, and intraperitoneal routes. Experimental reproductive effects. Animal experiments show an anti-cholinesterase effect. When heated to decomposition it emits toxic fumes of PO, and SO,. See also PARATHION, PHOSPHATES, ESTERS, and SULFATES.
Carcinogenicity
No carcinogenic effects occurred when rats were given diets with 0, 4, 40, or 320 ppm
tribufos (equivalent to 0.0, 0.2, 1.8, and 16.8 mg/kg/day in
males and 0.0, 0.2, 2.3, and 21.1 mg/kg/day in females,
respectively) for 2 years .
In a carcinogenicity study, mice were fed diets containing
tribufos at doses of 0, 10, 50, or 250 ppm (equivalent to 0.0,
1.64, 8.28, or 48.02 mg/kg/day in males and 0.0, 2.08, 11.14,
or 63.4 mg/kg/day in females) for 90 weeks . Carcinogenic
effects were evident at 250 ppm (48.02 mg/kg/day in
males and 63.4 mg/kg/day in females). Males exhibited a statistically significant increase in hemangiosarcomas and
adenocarcinomas of the small intestines and females exhibited
a statistically significant increase in alveolar/bronchiolar
adenomas.
Environmental Fate
Soil. Hydrolyzes in soil to ethyl mercaptan, carbon dioxide and diisobutylamine (Hartley and Kidd, 1987). Butylate is probably subject to degradation of soil microorganisms.
It was reported that butylate may degrade via hydrolysis of the ester linkage forming the
corresponding mercaptan (ethyl mercaptan), alkylamine (diisobutylamine) and carbon
dioxide. Transthiolation and oxidation of the mercaptan forms the alcohol which may
further oxidize to afford a metabolic pool (Kaufman, 1967). Somasundaram and Coats
(1991) reported butylate in soils is oxidized to the corresponding sulfoxide. The reported
half-life in soil is approximately 1.5–10 weeks (Worthing and Hance, 1991). The reported
half-life of butylate in a loam soil at 21–27°C was 3 weeks (Humburg et al., 1989). Residual
activity in soil is limited to approximately 4 months (Hartley and Kidd, 1987).
Groundwater. According to the U.S. EPA (1986) butylate has a high potential to leach
to groundwater.
Plant. In plants, butylate is metabolized to carbon dioxide, diisobutylamine, fatty acids,
conjugates of amines and other compounds (Hartley and Kidd, 1987; Humburg et al.,
1989).
1,2,4-Tributylphosphorotrithioate Preparation Products And Raw materials
Raw materials
Preparation Products
Supplier | Tel | Country | ProdList | Advantage | Inquiry |
---|---|---|---|---|---|
CLEARSYNTH LABS LTD. | +91-22-45045900 | Hyderabad, India | 6351 | 58 | Inquiry |
Chongqing Chemdad Co., Ltd | +86-023-6139-8061 +86-86-13650506873 | China | 39916 | 58 | Inquiry |
CONIER CHEM AND PHARMA LIMITED | +8618523575427 | China | 49392 | 58 | Inquiry |
career henan chemical co | +86-0371-86658258 +8613203830695 | China | 29824 | 58 | Inquiry |
SIMAGCHEM CORP | +86-13806087780 | China | 17367 | 58 | Inquiry |
Dayang Chem (Hangzhou) Co.,Ltd. | 571-88938639 +8617705817739 | China | 52861 | 58 | Inquiry |
PT CHEM GROUP LIMITED | China | 35426 | 58 | Inquiry | |
SUZHOU SENFEIDA CHEMICAL CO.,LTD | +86-0512-83500002 +8615195660023 | China | 23048 | 58 | Inquiry |
LEAPCHEM CO., LTD. | +86-852-30606658 | China | 43348 | 58 | Inquiry |
R&D Scientific Inc. | +1-2266000236 | Canada | 1479 | 58 | Inquiry |
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