methylparaben and propylparaben
methylparaben and propylparaben

methylparaben and propylparaben

Price 65.0 INR/ Kilograms

MOQ : 1 Kilograms

methylparaben and propylparaben Specification

  • Smell
  • Faint, characteristic
  • Physical Form
  • Powder
  • Storage
  • Store in tightly closed containers in a cool, dry, and well-ventilated place
  • Purity
  • 99% Min
  • Application
  • Used as preservatives in pharmaceuticals, cosmetics, and food
  • Ingredients
  • Methylparaben, Propylparaben
  • Product Type
  • Pharmaceutical Raw Materials, Preservatives
  • HS Code
  • 29182990
  • Shelf Life
  • 3 years
  • Molecular Formula
  • C8H8O3 (Methylparaben), C10H12O3 (Propylparaben)
  • Poisonous
  • NO
  • Appearance
  • White crystalline powder
  • Shape
  • Crystalline
  • Ph Level
  • 5.5 - 7.5 (1% solution)
  • Usage
  • Typically used at 0.1-0.2% concentration
  • Properties
  • Antimicrobial, stable under ordinary conditions, compatible with a wide range of substances
  • Grade
  • Pharmaceutical Grade, Food Grade
  • EINECS No
  • 202-785-7 (Methylparaben), 202-307-7 (Propylparaben)
  • Taste
  • Slightly bitter
  • Molecular Weight
  • 152.15 g/mol (Methylparaben), 180.21 g/mol (Propylparaben)
  • CAS No
  • 99-76-3 (Methylparaben), 94-13-3 (Propylparaben)
  • Refractive Rate
  • Not applicable (solid)
  • Melting Point
  • 125-128C (Methylparaben), 96-99C (Propylparaben)
  • Solubility
  • Slightly soluble in water, freely soluble in alcohol, ether, and acetone
  • Structural Formula
  • Methylparaben: C6H4(OH)COOCH3; Propylparaben: C6H4(OH)COOC3H7
  • Density
  • 1.46 Gram per cubic centimeter(g/cm3)
  • Packaging Details
  • 25 kg/drum or as required
  • Incompatibility
  • Strong oxidizing agents
  • Flash Point
  • Methylparaben: 196C; Propylparaben: 129C
  • Heavy Metals
  • <10 ppm
  • Loss on Drying
  • <0.5%
  • Stability
  • Stable under recommended storage conditions
  • Microbial Limits
  • Complies with BP/USP standards
  • Certificate of Analysis
  • Available on request
  • Residual Solvents
  • Complies with ICH guidelines
  • Assay
  • >=99% (each)
  • Boiling Point
  • 270C (Methylparaben); 295C (Propylparaben)
 

methylparaben and propylparaben Trade Information

  • Minimum Order Quantity
  • 1 Kilograms
  • Delivery Time
  • 1 Week
 

About methylparaben and propylparaben

Methylparaben and propylparaben are the two most common synthetic preservatives used to extend the shelf life of cosmetics, personal care products, pharmaceuticals, and foods. They are chemical esters of para-hydroxybenzoic acid (PHBA). 
Key Characteristics & Differences
  • Solubility: Methylparaben is highly water-soluble, while propylparaben is more oil-soluble.
  • Antimicrobial Spectrum: Methylparaben is more effective against bacteria (especially Gram-negative), while propylparaben has stronger antifungal properties against yeasts and molds.
  • Combined Use: Manufacturers often use them together to achieve "synergy,"
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