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Iprobenfos

Iprobenfos structure

CAS No:
26087-47-8
Formula:
C13H21O3PS
Chemical Name:
Iprobenfos
Synonyms:
Phosphorothioic acid,O,O-bis(1-methylethyl) S-(phenylmethyl) ester;Phosphorothioic acid,S-benzyl O,O-diisopropyl ester;Kitazin P;S-Benzyl O,O-diisopropyl phosphorothiolate;S-Benzyl O,O-diisopropyl phosphorothioate;O,O-Diisopropyl S-benzyl thiophosphate;IBP;O,O-Diisopropyl S-benzyl phosphorothioate;S-Benzyl O,O-diisopropyl thiophosphate;O,O-Diisopropyl S-benzyl phosphorothiolate;Kitazin L;Ricid II;Ricid P;Iprobenfos;Isokitazine;Kitazin 17;Tagkit;62601-78-9;72779-52-3;1135443-37-6
Categories:
Agrochemicals > Fungicides

Description

ChEBI: An organic thiophosphate that is the S-benzyl O,O-diisopropyl ester of phosphorothioic acid. Used as a rice fungicide to control leaf and ear blast, stem rot and sheath blight.

Solid

Iprobenfos is an organic thiophosphate that is the S-benzyl O,O-diisopropyl ester of phosphorothioic acid. Used as a rice fungicide to control leaf and ear blast, stem rot and sheath blight. It has a role as a phospholipid biosynthesis inhibitor and an antifungal agrochemical.

Iprobenfos Basic Attributes

Molecular Weight：

288.34

Exact Mass：

288.34

EC Number：

247-449-0

UNII：

OV3YOE2895

DSSTox ID：

DTXSID7058040

HScode：

2930909058

Characteristics

PSA：

60.8

XLogP3：

3.34

Appearance：

Solid

Density：

1.1001 g/cm³ @ Temp: 20 °C

Melting Point：

<25 °C

Boiling Point：

126 °C

Flash Point：

11 °C

Refractive Index：

1.514

Water Solubility：

0.4 mg/mL at 20 °C

Storage Conditions：

APPROX 4°C

Vapor Pressure：

2.5 x 10 -4 Pa (20 °C)

Toxicity：

Oral-rat LD50: 550 mg/kg; Oral-Mouse LD50: 435 mg/kg

Flammability characteristics：

Open flame is flammable; heat decomposes toxic phosphorus oxide and sulfur oxide gas

Safety Information

Packing level：

Hazard category：

6.1(a)

Transport codes：

UN 3082

wgk germany：

hazard class code：

22-51/53-39/23/24/25-23/24/25-11

safety instructions：

61-45-36/37-16-7

RTECS Number：

TE6550000

Marks：

Xn;N,N,Xn,T,F

Storage features：

The warehouse is ventilated, low temperature and dry; stored and transported separately from food materials

Precautionary statement(s)：

P273

Hazard Statements：

H302-H411

GHS Classification：

|Warning|H302: Harmful if swallowed [Warning Acute toxicity, oral]|P264, P270, P273, P301+P312, P330, P391, and P501|H302 (100%): Harmful if swallowed [Warning Acute toxicity, oral]|Aggregated GHS information provided by 127 companies from 1 notifications to the ECHA C&L Inventory. Each notification may be associated with multiple companies.|Danger|P260, P261, P264, P270, P271, P272, P280, P284, P301+P312, P302+P352, P304+P340, P305+P351+P338, P309+P311, P310, P320, P321, P330, P333+P313, P337+P313, P363, P403+P233, P405, and P501

Toxicity

Toxicity class：

most toxic

Bioconcentration：

8.71

Mobility：

181.97 L/kg

Drug Information

Biological Half-Life：

0.06 Days

MeSH Entry Terms：

IBP

Iprobenfos Use and Manufacturing

Methods of Manufacturing

For the production method of Isomapijing, please refer to the production of Meibijing. The production at the Fuji Plant of Japan Combina Chemicals Anbara Chemical is divided into three steps: esterification, sulfur addition, and benzylation. The plant uses a continuous method to esterify phosphorus trichloride and isopropanol to produce diisopropyl phosphite. Extracting the hydrogen chloride generated by the reaction as soon as possible is the key to the quality and yield of esterified products. Vulcanization adopts batch and intermittent operation, and the solvent used is distilled and recovered by a cryogenic device, starting at 25°C, the second stage -5°C, and finally -40°C, so that all the solvents in the tail gas are recovered. Two 9m3 reactors are used for benzylation to remove unreacted benzyl chloride and other impurities in the condensation reaction, and a thin-film vacuum concentration device is used. After purification, the purity of the product reaches 94%-96%, and the total yield is calculated as phosphorus trichloride. 86%～88%; 98%～99% calculated as benzyl chloride. There are 5 people in each shift in the whole workshop, producing 10×103kg crude oil per day. Guogu has also studied the method of synthesizing isomapyrin in one step with aqueous ammonia method, with a yield of 92%.

Uses

This product is an efficient, low-toxic organophosphorus fungicide. Mainly used to control rice blast. 38-39% emulsion, dosage is 150g/mu, diluted 300-600 times, use is about 85%. Secondly, it is used to control rice sclerotinia sclerotiorum and sheath blight, and also has certain effect on blight. And can control black-tailed leafhoppers, planthoppers, when mixed with other pesticides, can improve its efficacy. The combination of rice blast net and malathion has a toxin effect.

Use Classification：

Agrochemicals -> Fungicides

Computed Properties

Molecular Weight:288.34
XLogP3:3.2
Hydrogen Bond Acceptor Count:4
Rotatable Bond Count:7
Exact Mass:288.09490270
Monoisotopic Mass:288.09490270
Topological Polar Surface Area:60.8
Heavy Atom Count:18
Complexity:261
Covalently-Bonded Unit Count:1
Compound Is Canonicalized:Yes

Material

Benzyl chloride

Ammonium bicarbonate

Toluene

Tetraphosphorus

Isopropanol

Diethyl phosphite

Ammonia

Phosphorus trichloride

Recommended Suppliers of Iprobenfos

UMGS GROUP PTY LTD Contact Supplier

ZA
2 YRS

Business licensed

Distributor Supplier of Chemicals bulk

Iprobenfos Broad-Spectrum Systemic Fungicide for Crop Protection

CAS No.: 26087-47-8

Grade: Industrial Grade

Content: 48%

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