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81778-07-6

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81778-07-6 Usage

General Description

4,4-dimethyl isoxazolidin-3-one, also known as DMI, is a chemical compound that is commonly used as a solvent and as a precursor for the production of various pharmaceuticals and agricultural products. It is a stable, colorless liquid with a slightly bitter taste, and it is soluble in water and most organic solvents. DMI is often used as a solvent in the formulation of pesticides, herbicides, and fungicides, and it is also used as a reaction intermediate in the synthesis of various pharmaceutical compounds. Additionally, DMI has been studied for its potential use in the treatment of various medical conditions, such as cancer and central nervous system disorders. However, it is important to handle DMI with caution, as it is toxic when ingested, inhaled, or absorbed through the skin.

Check Digit Verification of cas no

The CAS Registry Mumber 81778-07-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,1,7,7 and 8 respectively; the second part has 2 digits, 0 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 81778-07:
(7*8)+(6*1)+(5*7)+(4*7)+(3*8)+(2*0)+(1*7)=156
156 % 10 = 6
So 81778-07-6 is a valid CAS Registry Number.

81778-07-6SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 19, 2017

Revision Date: Aug 19, 2017

1.Identification

1.1 GHS Product identifier

Product name 4,4-Dimethyl-1,2-oxazolidin-3-one

1.2 Other means of identification

Product number -
Other names 3-Isoxazolidinone,4,4-dimethyl

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:81778-07-6 SDS

81778-07-6Relevant articles and documents

Purification method of intermediate 4,4-dimethyl isoxazole-3-ketone

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Paragraph 0023-0027; 0035-0040; 0048-0053; 0061-0066; 0074-, (2021/01/25)

The invention discloses a purification method of an intermediate 4,4-dimethyl isoxazole-3-one, which comprises the following steps: washing a 4,4-dimethyl isoxazole-3-one reaction solution with pure water until the pH value of the oil phase of the reaction solution is 7.5-9.0, dissolving with alcohol, distilling, refluxing, acidifying, crystallizing and filtering to obtain the solid 4,4-dimethyl isoxazole-3-one with a purity of 99.5% or above. The purification process is simple, the post-treatment is highly operable, the key technical problems of low product purity, difficulty in refining andinfluence on the purity of the subsequent product clomazone in the original 4,4-dimethyl isoxazole-3-ketone preparation technology are solved, and the purification process conforms to the concept of green economic cycle.

Low-temperature synthesis process of clomazone

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Paragraph 0025; 0028; 0031; 0034; 0037; 0040, (2019/09/05)

The invention discloses a low-temperature synthesis process of clomazone. The low-temperature synthesis process of the clomazone comprises condensation reaction, cyclization reaction, synthesis reaction and configuration conversion. The low-temperature synthesis process of the clomazone disclosed in the invention starts from analyzing side reaction products, determines the chemical composition ofimpurities, and reduces the amount of the impurities by optimizing process parameters, finding high-efficiency catalysts and controlling side reactions; then, through chemical treatment on the produced isomers, part of the isomers are converted into the product, and part of irreversible by-products are converted into high-boiling-point polymer compounds through reaction, so that the clomazone product is easy to separate; finally, the clomazone product is purified through physical methods to obtain the clomazone with a purity greater than 97%.

PROCESS FOR PREPARING CLOMAZONE, NOVEL FORM AND USE OF THE SAME

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, (2015/01/16)

A process for preparing clomazone is provided,the process comprising reacting 4,4-dimethyl-3-isoxazolidinone with 2-chlorobenzyl chloride in an aqueous medium in the presence of a base, in particular an alkali metal hydroxide. A method for preparing clomazone is also disclosed, the method comprising (a) crystallizing clomazone from solution in an organic solvent; and (b) isolating the resulting crystals. N-benzene is a particularly suitable solvent. Further, there is provided Form I crystalline 2-[(2-chlorophenyl)methyl]-4,4-dimethyl-3-isoxazolidinone (clomazone), wherein the polymorph Form I is characterized by at least one of the following properties : (i) an X-ray powder diffraction pattern having characteristic peaks expressed in degrees 2θ(+/-0.20° θ) at one or more of the following positions : about 10.63, 16.07, 18.08, 19.11, 19.34, 21.20, 24.78 and 28.80; and (ii) an infrared (IR) spectrum having a characteristic peak : at about 2967 and 2870 cm-1.

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