Propyl Paraben
- CAS Number: 94-13-3
- Chemical Formula: C10H12O3
- MOQ: 1000KG
- Shelf Life: 2 years
- Forms: Powder, Granules
- Synonyms: 1-Hydroxy-2-propoxybenzene, Propyl p-hydroxybenzoate, 4-Hydroxy-3-propoxybenzoic acid
Product Description
What Is Propyl Paraben?
Propyl paraben is a chemical molecule that is frequently employed as a preservative in pharmaceuticals, personal care products, and cosmetics because of its antibacterial qualities. The minimal toxicity and efficacy of propyl paraben at low concentrations are well-established. It is also used in the food industry but has become less popular due to growing concerns about potential health risks, particularly hormone disruption.
Preparation Method:
Propanol (propyl alcohol) and p-hydroxybenzoic acid are esterified in the presence of a potent acid catalyst, usually sulfuric acid, to produce propyl paraben. The reaction is carried out at a regulated temperature, and any impurities are eliminated from the result by solvent extraction or recrystallization.
Related Parameters:
| Items | Standards |
| Content (dry basis) % ≥ | 98.0-102.0 |
| Melting point ℃ | 96-99 |
| Acidity | Qualified |
| Sulfate (SO42-) % ≤ | 0.024 |
| Heavy metal (Pb) % ≤ | 0.001 |
| Arsenic (AS) % ≤ | 0.0001 |
| Drying loss % ≤ | 0.50 |
| Residue on ignition % ≤ | 0.05 |
| Mass fraction of free acid, (PHBA)% ≤ | 0.55 |
| Identification test | Qualified |
| Related substances | Qualified |
| Organic volatile impurities | Qualified |
Recommended Dosage of Propyl Paraben:
| Applications | Dosage |
| Cosmetics and Personal Care | 0.1%-0.3% |
| Pharmaceuticals | 0.1%-0.2% |
| Food and Beverages | 0.02%-0.1% |
| Industrial Products | 0.1%-0.3% |
| Antiseptics and Cleaners | 0.1%-0.5% |
Propyl Paraben Has Wide Range of Uses:
1. Cosmetics and Personal Care
In order to inhibit microbiological development and prolong shelf life, propyl paraben is frequently used in cosmetics and personal care items such lotions, shampoos, creams, and deodorants.
2. Pharmaceuticals
In the pharmaceutical industry, propyl paraben is used as a preservative in oral, topical, and injectable formulations to maintain stability and prevent contamination.
3. Food and Beverages
It prolongs shelf life and keeps processed foods and drinks from spoiling.
4. Industrial Products
Propyl paraben is used in industrial applications such as paints, coatings, and other formulations requiring antimicrobial protection.
5. Antiseptics and Cleaners
It is added to cleaning and disinfecting products for its antimicrobial properties, helping to protect against bacterial and fungal growth.
This version only includes the applications without the concentration details.
User Asked Question:
Q: Can Other Preservatives Be Replaced by Propyl Paraben?
A: Propyl paraben is an effective preservative but is typically not used alone. It is often combined with other preservatives, especially in products with higher microbiological protection requirements. This combination enhances the preservative effect and helps prevent the development of microbial resistance, ensuring longer shelf life and better protection against bacteria and fungi.
