Molekula
Stearic Acid, 95%
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
Stearic acid is a long-chain saturated fatty acid commonly used as an emulsifier, thickener, and lubricant in cosmetics, pharmaceuticals, and industrial applications. It’s also a key ingredient in candles, soaps, and plastics for its hardening and stabilizing properties. This product is **stearic acid, technical grade, 95% purity**, with a CAS number of 57-11-4 and molecular formula CH3(CH2)16COOH (molecular weight 284.48). Store at 2–8°C in a cool, dry place. No signal word applies under standard handling. Molekula supplies stearic acid 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.
Need a different quantity or pack?
Tell us how much you need and when — drums, IBCs, sacks or a one-off bulk lot. We'll manufacture or source it and come back with a price.
Prices exclude VAT/sales tax and shipping.
Specifications
Specifications available on request — see Documents below or contact our sales team.
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | 2 to 8 °C |
| Flash Point | 200 °C |
| Acidity | Acid |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | Colorless, wax-like solid |
| Odour | Slight odor suggesting tallow |
| Melting Point | 68.8 °C |
| Boiling Point | 383 °C |
| Density | 0.94-0.83 (relative, water = 1) |
| Water Solubility | 0.568 mg/L at 25 °C |
| Solubility (other solvents) | Slightly soluble in ethanol, benzene; soluble in acetone, chloroform, carbon disulfide |
| Vapour Pressure | 133 Pa at 174 °C |
| Refractive Index | 1.4299 |
| log P (octanol/water) | 8.23 |
Source: PubChem CID 5281 (HSDB, DrugBank, ICSC)
Identification
| Property | Value |
|---|---|
| SKU | 90028117 |
| CAS Number | 57-11-4 |
| IUPAC Name | octadecanoic acid |
| EC Number | 200-313-4 |
| Molecular Formula | CH3(CH2)16COOH |
| Molecular Weight | 284.48 |
| Exact Mass | 284.2715 |
| SMILES | CCCCCCCCCCCCCCCCCC(=O)O |
| InChIKey | QIQXTHQIDYTFRH-UHFFFAOYSA-N |
| InChI | InChI=1S/C18H36O2/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20/h2-17H2,1H3,(H,19,20) |
| PubChem CID | 5281 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 29157001 |
| Tariff Code | 2915705090 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
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
- 1-Heptadecanecarboxylic acid
- Cetylacetic acid
- Industrene R
- n-Octadecanoic acid
- Octadecanoic acid
- Octadecansaeure
- Pearl stearic
- Stearex Beads
- Stearinsaeure
- Stearophanic acid
Frequently asked questions
What is stearic acid (95%) commonly used for?
Stearic acid (95%) is primarily used in cosmetics, pharmaceuticals, and industrial applications like lubricants, candles, and soaps due to its emulsifying and thickening properties.
What is the chemical formula and molecular weight of stearic acid?
The chemical formula is **CH₃(CH₂)₁₆COOH**, and the molecular weight is **284.48 g/mol**.
How should stearic acid (95%) be stored?
Store at **2–8°C** in a cool, dry place away from direct sunlight and moisture to maintain purity and stability.
What grades of stearic acid does Molekula supply?
Molekula supplies **technical-grade stearic acid (95% purity)**. Higher purity grades may be available upon request.
Can Molekula supply stearic acid in bulk quantities?
Yes, Molekula can supply stearic acid in bulk, with packaging options tailored to your requirements (e.g., drums, bags).
What documentation comes with an order of stearic acid?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a packing list 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.