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Postion:Product Catalog >API>Synthetic Anti-infective Drugs>Antiseptics & Disinfectants Drugs>Methylparaben
Methylparaben
  • Methylparaben
  • Methylparaben
  • Methylparaben

Methylparaben NEW

Price $30 $30
Package 1kg 25kg
Min. Order: 1kg
Supply Ability: 30 tons
Update Time: 2025-06-05

Product Details

Product Name: Methylparaben CAS No.: 99-76-3
EC-No.: 202-785-7 Min. Order: 1kg
Purity: 99% Supply Ability: 30 tons
Release date: 2025/06/05

Application: Paraben methyl ester, also known as hydroxyphenylate, Paraben lipids were initially used as food preservatives, and after a series of exploration and research, they were introduced into cosmetics as preservatives. Hydroxyphenylate has a strong antibacterial effect, the most prominent of which is the antibacterial ability of mold and yeast, but the effect of some bacteria (gram-negative bacteria, lactic acid bacteria) is poor, so it is often used with other preservatives in cosmetics.

Content analysis: Method 1 was determined according to the content analysis method of "butyl p-hydroxybenzoate (07002)". Each mLImol/L sodium hydroxide is equivalent to 152.2mg of this product (C8H8O3). Method 2 The sample of 0.1g(accurate to lmg) was dried on silica gel for 5h in advance and transferred into a 300ml flask with glass stopper. Add 10ml lmol/L sodium hydroxide and heat it in a water bath for 15min. After cooling, 0.1mol/L potassium bromate 50.00ml, potassium bromate 5.0g and lmol/L hydrochloric acid 30ml were added. After tampering, place in a dark room for 15min. Add 1g potassium iodide, shake the flask violently, titrate with 0.1mol/L sodium thiosulfate, and use starch test solution (TS-235) as an indicator. 0.1mol/L potassium bromate per mlis equivalent to 25.36mg of this product (C8H8O3).

Melting Point125-128 °C
Boiling Point298.6 °C
Density
1,46g/cm
Vapor Pressure0.000005 hPa (20 °C)
Refractive Inedx
1.4447
pKa280°C
PH5.8 (H2O, 20°C) (saturated solution)

Article illustration

Company Profile Introduction

Hebei Yanxi Chemical Co. LTD., mainly produce the Carbomer940/980/u21 and lead acetate and lead oxide, lead stearate, lead salt, at the same time operating organic intermediates, surfactants, Food additive,inorganic salt, plant extracts, cosmetics raw material, etc., through long-term development, hebei said bush chemical co., LTD. In hebei province has become a collection of r &d, production, sales in the integration of high-tech enterprises.

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