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Tolclofos-methyl

Product Name
Tolclofos-methyl
CAS No.
57018-04-9
Chemical Name
Tolclofos-methyl
Synonyms
S-3349;RIZOLEX;Basilex;Risolex;Risolex(TM);Tolcofos-methyl;olclofos-methyl;Methyl tolclofo;TOLCLOFOS-METHYL;Methyl tolclofos
CBNumber
CB2451996
Molecular Formula
C9H11Cl2O3PS
Formula Weight
301.13
MOL File
57018-04-9.mol
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Tolclofos-methyl Property

Melting point:
78-80°C
Boiling point:
338.5±52.0 °C(Predicted)
Density 
1.401±0.06 g/cm3(Predicted)
vapor pressure 
1.84 x 10-3 (Pa 25 °C)
Flash point:
>100 °C
storage temp. 
2-8°C
solubility 
Chloroform (Slightly), DMSO (Slightly)
Water Solubility 
1.10 mg l-1 (25 °C)
Merck 
13,9587
BRN 
2136521
InChIKey
OBZIQQJJIKNWNO-UHFFFAOYSA-N
LogP
4.560
CAS DataBase Reference
57018-04-9(CAS DataBase Reference)
NIST Chemistry Reference
Phosphorothioic acid, o-(2,6-dichloro-4-methylphenyl) o,o-dimethyl ester(57018-04-9)
EPA Substance Registry System
Tolclofos-methyl (57018-04-9)
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Safety

Hazard Codes 
Xi,N
Risk Statements 
43-50/53
Safety Statements 
22-24/25-61-60-37-24
RIDADR 
UN 3077 9 / PGIII
WGK Germany 
3
RTECS 
TF0460000
HS Code 
29201900
Hazardous Substances Data
57018-04-9(Hazardous Substances Data)
Toxicity
LD50 in male, female rats, male, female mice (mg/kg): ~5000, ~5000, 3500, 3600 orally; all >5000 dermally; ~5000, 4900, 1070, 1260 i.p.; all >5000 s.c. (Ohtsuki, Fujinami)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H317May cause an allergic skin reaction

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P272Contaminated work clothing should not be allowed out of the workplace.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P333+P313IF SKIN irritation or rash occurs: Get medical advice/attention.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
31209
Product name
Tolclofos-methyl
Purity
PESTANAL
Packaging
250mg
Price
$49.56
Updated
2024/03/01
TRC
Product number
T535265
Product name
Tolclofos-methyl
Packaging
1g
Price
$215
Updated
2021/12/16
ChemScene
Product number
CS-5201
Product name
Tolclofos-methyl
Purity
96.51%
Packaging
500mg
Price
$60
Updated
2021/12/16
American Custom Chemicals Corporation
Product number
PST0000303
Product name
TOLCLOFOS-METHYL
Purity
95.00%
Packaging
5MG
Price
$501.25
Updated
2021/12/16
Medical Isotopes, Inc.
Product number
99597
Product name
Tolclofos-methyl
Packaging
1g
Price
$575
Updated
2021/12/16
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Tolclofos-methyl Chemical Properties,Usage,Production

Uses

Tolclofos-methyl is a non-systemic organophosphorus fungicide with both protective and curative activities that control soil-borne diseases caused by Rhizoctonia solani, Corticium rolfsii, Tphula incamata and Typhula ishikariensis in/on potatoes, sugar beet, cotton and peanuts.

Uses

Agricultural fungicide.

Definition

ChEBI: An organic thiophosphate that is 2,6-dichloro-4-methylphenol in which the hydrogen of the hydroxy group group has been replaced by a dimethoxyphosphorothioyl group. Tolclofos-methyl is a phospholipid biosynthesis inhibitor and fungicide that is used for co trolling soil-borne diseases caused by Typhula incarnata, Corticium rolfsii, Typhula ishikariensis, and Rhizoctonia solani.

Metabolic pathway

Tolclofos-methyl underwent common degradation and metabolic pathways in water, soil, plants and animals. These reactions are well documented for most organophosphorus compounds and include oxidative desulfuration, hydroxylation/oxidation of the 4-methyl group to the alcohol and carboxylic acid, cleavage of the P-O-aryl linkage, O-demethylation and conjugation. In addition to the above reactions, photolytic isomerisation to the thionate (P=S) was also observed. A schematic presentation of the primary metabolic pathways for tolclofosmethyl is illustrated in Scheme 1.

Degradation

[14C-phenyl]Tolclofos-methyl(1) was stable to hydrolytic degradation at pH 5, 7 and 9 at 22°C with DT50 values of 139, 417 and 238 days, respectively. Higher temperature led to a more rapid hydrolysis and two hydrolysis products were detected. O-Demethylation and oxidative desulfuration were the major reactions to yield 2,6-dichloro-p-tolyl methyl hydrogen phosphorothioate (2) and toclofos-methyl oxon (O-2,6-dichlorop- tolyl O,O-dimethyl phosphate, 3), respectively. Cleavage of the P-O-aryl linkage yielded 2,6-dichloro-4-methylphenol(4) as a minor degradation product (WHO, 1994).
Tolclofos-methyl degraded in water under natural sunlight irradiation with DT50 values of 44 days (in distilled water), 15-28 days (in natural river and pond water) and less than 2 days in 2% acetone/water. The major degradation reactions included oxidative desulfuration to yield compound 3 and O-demethylation to yield compound 2. The major photodegradation products in river and pond waters and soil thinlayer surfaces were compounds 2, 3, 4 and the O-demethylated 3 (2,6- dichloro-p-tolyl methyl hydrogen phosphate, 5) (Mikami et al., 1984). In acetone solution, demethylation of the isomerisation product [2,6- dichloro-p-tolyl O,S-dimethyl phosphorothioate (6)] yielded 2,6-dichlorop- tolyl S-methyl hydrogen phosphorothioate (7) and 2,6-dichloro-p-tolyl dihydrogen phosphate (8) as the major photodegradates (Mikami et al., 1984).

Toxicity evaluation

Its acute oral toxicity is very low in comparison with a thio-ester type of other organophosphorus fungicides (edifenphos, iprobenfos, and pyrazophos).

Tolclofos-methyl Preparation Products And Raw materials

Raw materials

Preparation Products

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Tolclofos-methyl Suppliers

J & K SCIENTIFIC LTD.
Tel
010-82848833 400-666-7788
Fax
86-10-82849933
Email
jkinfo@jkchemical.com
Country
China
ProdList
96815
Advantage
76
Shanghai Hanhong Scientific Co.,Ltd.
Tel
Country
China
ProdList
42982
Advantage
64
BEST-REAGENT
Tel
400-1166-196 18981987031
Fax
028-84555506 800101999
Email
cdhxsj@163.com
Country
China
ProdList
11726
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Haoyuan Chemexpress Co., Ltd.
Tel
021-58950125
Fax
(86) 21-58955996
Email
info@chemexpress.com
Country
China
ProdList
7553
Advantage
61
Shanghai Aladdin Bio-Chem Technology Co.,LTD
Tel
18521735133 18521732826;
Fax
021-50323701
Email
market@aladdin-e.com
Country
China
ProdList
25015
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MedChemexpress LLC
Tel
021-58955995
Fax
609-228-5909
Email
sales@medchemexpress.cn
Country
United States
ProdList
4863
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58
Nanjing Sunlida Biological Technology Co., Ltd.
Tel
025-57798810
Fax
025-57019371
Email
sales@sunlidabio.com
Country
China
ProdList
3750
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TargetMol Chemicals Inc.
Tel
021-33632979 15002134094
Fax
021-33632979
Email
marketing@targetmol.com
Country
China
ProdList
7934
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ChemStrong Scientific Co.,Ltd
Tel
0755-0755-66853366 13670046396
Fax
0755-28363542
Email
sales@chem-strong.com
Country
China
ProdList
17994
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Alta Scientific Co., Ltd.
Tel
022-6537-8550 15522853686
Fax
022-2532-9655
Email
sales@altasci.com.cn
Country
China
ProdList
4515
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View Lastest Price from Tolclofos-methyl manufacturers

Hebei Guanlang Biotechnology Co., Ltd.
Product
Tolclofos-methyl 57018-04-9
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2022-10-24

57018-04-9, Tolclofos-methylRelated Search:


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  • Dimethyl O-(2,6-dichloro-4-methylphenyl) phosphorothioate
  • S-3349
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  • Phosphorothioic acid, O-(2,6-dichloro-4-methylphenyl) O,O-dimethyl ester
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  • 57018-04-9
  • C9H11Cl2O3PS
  • FUNGICIDE