Molekula
Propyl-4-hydroxybenzoate sodium salt (Pharma Grade)
Supplying 4,500+ customers in over 80 countries
ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 2000 · Listed pack sizes are a starting point — we manufacture, source and repack to the quantity you need
Propyl-4-hydroxybenzoate sodium salt (Pharma Grade) is a sodium salt of propyl paraben, widely used as a preservative in pharmaceuticals, cosmetics, and food products to inhibit microbial growth. This high-purity chemical meets strict pharmaceutical standards for safety and efficacy. Catalogue details include CAS 35285-69-9, molecular formula C10H11NaO3, and molecular weight 202.18. It is stored at ambient conditions and carries a "Danger" signal word due to potential health hazards. Molekula supplies Propyl-4-hydroxybenzoate sodium salt (Pharma Grade) from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Example image for illustration only. Other packaging and pack sizes are available.
Pricing & pack sizes
Pack sizes & pricing
Pricing on request — packs available from research to bulk quantities.
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Specifications
| Property | Value |
|---|---|
| Appearance | White to Off-white powder |
| Melting Point | 96 - 99°C |
| Water | ≤ 5.0% |
| pH | 9.5 - 10.5 (0.1% w/w) |
| Chloride (Cl-) | ≤ 0.03% |
| Sulphated Ash | 34.0 - 36.0% |
| Related Substances | 4-Hydroxybenzoic acid (PHBA): ≤ 4.0% |
| Assay (HPLC) | 95.0 - 102.0% |
| Heavy Metals (Pb) | ≤ 0.001% |
| Cadmium (Cd) | ≤ 0.001% |
| Residual Solvents: Methanol | ≤ 3000ppm |
| Sum of all impurities | ≤ 1.0% (excluding PHBA) |
| Lead (Pb) | ≤ 0.0005% |
| Mercury (Hg) | ≤ 0.00001% |
| Identification (IR) | Conforms to Reference |
| Arsenic (As) | ≤ 0.0003% |
| Copper (Cu) | ≤ 0.001% |
| Zinc (Zn) | ≤ 0.001% |
| Single Largest Impurity | ≤ 0.5% (excluding PHBA) |
| Sulphates (SO4)(2-) | ≤ 0.03% |
| n-pentanol | ≤ 5000ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Base |
Identification
| Property | Value |
|---|---|
| SKU | 90035079 |
| CAS Number | 35285-69-9 |
| IUPAC Name | sodium 4-propoxycarbonylphenolate |
| EC Number | 252-488-1 |
| Molecular Formula | C10H11NaO3 |
| Molecular Weight | 202.18 |
| Exact Mass | 202.0606 |
| SMILES | CCCOC(=O)C1=CC=C(C=C1)[O-].[Na+] |
| InChIKey | IXMINYBUNCWGER-UHFFFAOYSA-M |
| InChI | InChI=1S/C10H12O3.Na/c1-2-7-13-10(12)8-3-5-9(11)6-4-8;/h3-6,11H,2,7H2,1H3;/q;+1/p-1 |
| PubChem CID | 23679044 |
| REACH Code | Y113 |
| Tariff Code | 2918290090 |
Safety & GHS
-
Corrosive
GHS05
Hazard statements
- H318 Causes serious eye damage
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P337+313 If eye irritation persists get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Spanish.
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Synonyms
- Caswell No. 714A
- Natrium propyl 4-hydroxybenzoat
- Propyl 4-hydroxybenzoate sodium salt
- Propyl p-hydroxybenzoate, sodium salt
- Propylparaben sodium
- Propylparaben, sodium salt
- Sodium propyl 4-hydroxybenzoate
- Sodium propyl hydroxybenzoate
- Sodium Propyl Parahydroxybenzoate
- Sodium propylparaben
Frequently asked questions
What is propyl-4-hydroxybenzoate sodium salt used for?
This compound is primarily used as a **paraben preservative** in pharmaceutical formulations, cosmetics, and personal care products to inhibit microbial growth.
What is the chemical formula and molecular weight?
The formula is **C₁₀H₁₁NaO₃**, and the molecular weight is **202.18 g/mol**.
What safety classification does this product have?
The product is labeled with the **signal word 'Danger'** due to its potential hazards; full SDS details are provided with orders.
How should propyl-4-hydroxybenzoate sodium salt be stored?
Store in a **cool, dry place at ambient temperature**, away from direct sunlight and incompatible substances.
Does Molekula supply this in bulk quantities?
Yes, we offer **bulk quantities** (from 1 kg to 25 kg) for pharma-grade applications—contact us for custom packaging options.
What documentation is included with a pharma-grade order?
Each order includes a **Certificate of Analysis (CoA)**, **Safety Data Sheet (SDS)**, and **batch-specific documentation** for traceability.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.