Factory Supply CAS 99-76-3 Methylparaben Pure Methylparaben Powder
Product Description
Methylparaben, is an organic substance with the formula C8H8O3, white crystalline powder or colorless crystal, with soluble in alcohol, ether, very slightly soluble in water, boiling point 270-280 °C. It is mainly used as a bactericidal preservative for organic synthesis, food, cosmetics and medicine, and is also used as a feed preservative. Because it has a phenolic hydroxyl structure, its antibacterial properties are stronger than benzoic acid and sorbic acid. Its mechanism of action is: destroy the cell membrane of microorganisms, denature proteins in cells, and inhibit the activity of respiratory enzymes and electron transfer enzymes of microbial cells.
COA
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ITEMS |
STANDARD |
TEST RESULT |
| Assay | 99% Methylparaben | Conforms |
| Color | White powder | Conforms |
| Odor | No special smell | Conforms |
| Particle size | 100% pass 80mesh | Conforms |
| Loss on drying | ≤5.0% | 2.35% |
| Residue | ≤1.0% | Conforms |
| Heavy metal | ≤10.0ppm | 7ppm |
| As | ≤2.0ppm | Conforms |
| Pb | ≤2.0ppm | Conforms |
| Pesticide residue | Negative | Negative |
| Total plate count | ≤100cfu/g | Conforms |
| Yeast & Mold | ≤100cfu/g | Conforms |
| E.Coli | Negative | Negative |
| Salmonella | Negative | Negative |
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Conclusion |
Conform with Specification |
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Storage |
Stored in Cool & Dry Place, Keep Away From Strong Light And Heat |
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Shelf life |
2 years when properly stored |
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Function
Methylparaben powder has a variety of functions, including:
Sterilization and antiseptic : Methylparaben has a strong antibacterial and bactericidal effect, can destroy the cell membrane of microorganisms, denaturate the protein in the cell, and inhibit the activity of the respiratory enzyme system and the electron transfer enzyme system of microbial cells, so as to play the role of sterilization and antiseptic. This property makes it widely used as a preservative in food, cosmetics, medicine and other fields .
Anti-inflammatory and antibacterial : In addition to being a preservative, Methylparaben also has anti-inflammatory and antibacterial effects and can be used to treat fungal skin infections, such as skin itching, skin rashes and other unpleasant symptoms. In moderate use, methyl p-hydroxybenzoate has some therapeutic effects on the skin .
For organic synthesis : Methylparaben can be used as raw materials for organic synthesis, especially its esters, such as methyl paraben, ethyl paraben, etc. These esters can be used as food additives, such as soy sauce, vinegar, cooling beverages, fruit flavoring agents, fruits and vegetables, preservatives for pickled products .
Application in medicine and cosmetics : Methylparaben is used as a preservative in medicine and cosmetics to prevent food from rotting or medicine from going bad. In cosmetics, it can prevent cosmetics from spoilage, decomposition, and maintain the freshness and effectiveness of products .
Other uses : Methylparaben is also used as an intermediate in dyes, pesticides, and in pesticides for the synthesis of organophosphorus insecticides. In addition, it is used in the manufacture of liquid crystal polymers and plastics, and as a phenol derivative of benzoic acid, can inhibit the vast majority of gram-positive bacteria and some gram-negative bacteria 4.
In summary, Methylparaben powder is not only an effective preservative and antibacterial agent, but also plays an important role in organic synthesis and other fields.
Application
Methylparaben, also known as methyl paraben or methyl hydroxyphenyl ester, is a white crystalline powder or colorless crystal, soluble in alcohol, ether and acetone, very slightly soluble in water properties, boiling point of 270-280 ° C. The main uses of this compound include:
Organic synthesis : As the basic raw material of organic synthesis, used to synthesize various chemicals.
food additive : used as a bactericidal preservative to prevent food from spoilage and extend the shelf life of food.
Cosmetics : As a bactericidal preservative of cosmetics, maintain the hygiene and quality of cosmetics.
pharmaceutical : methyl p-hydroxybenzoate is used as a bactericidal preservative in the pharmaceutical industry to ensure the safety and effectiveness of pharmaceuticals.
Feed preservative : used in feed to prevent the growth of microorganisms and ensure the quality and safety of feed.
In addition, methyl p-hydroxybenzoate also has a phenolic hydroxyl group structure, so its antibacterial performance is stronger than benzoic acid and sorbate, which can destroy the cell membrane of microorganisms, denature proteins in the cells, and inhibit the activities of the respiratory enzyme system and the electron transfer enzyme system of microbial cells, so as to achieve the purpose of anti-corrosion. This compound is widely used in many fields and is an important chemical raw material .
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