methylparaben and propylparaben

Name: methylparaben and propylparaben
Brand: KPM Corporation
Price: 65.0 INR
Availability: InStock

Price 65.0 INR/ Kilograms

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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,"