Molekula
Stearic Acid 98+%
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 98+% is a saturated fatty acid derived from vegetable or animal fats, widely used in cosmetics, pharmaceuticals, and industrial applications as an emulsifier, thickener, and lubricant. It also serves as a key ingredient in candles, soaps, and plastics for its stabilizing and binding properties. This product has a CAS number of 57-11-4, a molecular formula of CH3(CH2)16COOH, and a molecular weight of 284.48. It requires storage between 2 to 8 degrees Celsius, carries no signal word for hazard classification, and is supplied in high purity. Molekula supplies Stearic Acid 98+% 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
These pack sizes aren't a limit. Molekula manufactures, sources and repacks to order — if you need 500 kg and only see 1 kg listed, . We quote from grams to multi-tonne.
Need a different size? Add the nearest pack and change the size in your basket — we price it at the same rate per unit.
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1 kg — £30.90 per pack ex VAT · £37.08 inc. VAT
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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
| Property | Value |
|---|---|
| Appearance | White to pale yellow powder or flakes |
| Assay | ≥98% |
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 | 90029407 |
| 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
- stearic acid
- Stearophanic acid
Frequently asked questions
What is Stearic Acid 98+% commonly used for?
Stearic Acid 98+% is primarily used in cosmetics, pharmaceuticals, candles, lubricants, and as a raw material in the production of soaps, detergents, and plastics.
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 98+% be stored?
Store Stearic Acid 98+% in a cool, dry place at **2–8°C** to maintain stability and prevent degradation.
What purity grades of Stearic Acid does Molekula supply?
Molekula supplies Stearic Acid at **98%+ purity**—please confirm if higher grades or custom specifications are required.
Can Molekula supply Stearic Acid 98+% in bulk quantities?
Yes, Molekula can supply Stearic Acid 98+% in bulk—contact our sales team for pricing and lead times.
What documentation comes with an order of Stearic Acid 98+%?
Each order includes a **Certificate of Analysis (CoA)**, Material Safety Data Sheet (MSDS), and a packing list.
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.