Molekula
Methyl stearate
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
Methyl stearate is a fatty acid methyl ester derived from stearic acid, commonly used as a lubricant, emulsifier, and plasticizer in cosmetics, pharmaceuticals, and industrial coatings. It provides slip, gloss, and water resistance in formulations while being non-toxic and biodegradable. CAS 112-61-8, molecular formula CH3(CH2)16CO2CH3, molecular weight 298.50 g/mol. Requires storage at -15°C to -20°C for stability. Classified as non-hazardous with no signal word. Molekula supplies methyl stearate 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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5 g — $70.60 per pack
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Prices exclude VAT/sales tax and shipping.
Specifications
| Property | Value |
|---|---|
| Appearance | White solid |
| C16 | 38.0 -40.0% |
| C18 | ≥60.0% |
| Assay GC | ≥99.0% |
| Iodine value (g I2/100g) | ≤0.5% |
| Saponification Value (mgKOH/g) | 190 - 195 |
| Acid Value (mg KOH/g) | ≤1.0% |
| C14 | ≤0.5% |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | -15 to -20 °C |
| Flash Point | 110 °C |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White crystals |
| Melting Point | 39.1 °C |
| Boiling Point | 443 °C |
| Vapour Pressure | 1.36 × 10⁻⁵ mmHg at 25 °C |
| Refractive Index | 1.4367 |
| log P (octanol/water) | 8.35 |
Source: PubChem CID 8201 (HSDB)
Identification
| Property | Value |
|---|---|
| SKU | 88200628 |
| CAS Number | 112-61-8 |
| IUPAC Name | methyl octadecanoate |
| EC Number | 203-990-4 |
| Molecular Formula | CH3(CH2)16CO2CH3 |
| Molecular Weight | 298.50 |
| Exact Mass | 298.2872 |
| SMILES | CCCCCCCCCCCCCCCCCC(=O)OC |
| InChIKey | HPEUJPJOZXNMSJ-UHFFFAOYSA-N |
| InChI | InChI=1S/C19H38O2/c1-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19(20)21-2/h3-18H2,1-2H3 |
| PubChem CID | 8201 |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 2915700150 |
| Tariff Code | 2915705010 |
Safety & GHS
Precautionary statements
- P264 Wash thoroughly after handling
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P501 Dispose of contents/container to an approved waste disposal plant
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, 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
- Emery 2218
- Kemester 9018
- Kemester 9718
- Metholene 2218
- Methyl n-octadecanoate
- Methyl octadecanoate
- METHYL STEARATE (II)
- n-Octadecanoic acid methyl ester
- Stearic acid methyl ester
Frequently asked questions
What is methyl stearate commonly used for?
Methyl stearate is primarily used in industrial applications such as a lubricant, plasticizer, and in the production of cosmetics, polishes, and as a raw material in the synthesis of other chemicals.
What is the chemical formula and molecular weight of methyl stearate?
The chemical formula is **CH₃(CH₂)₁₆CO₂CH₃**, and the molecular weight is **298.50 g/mol**.
How should methyl stearate be stored?
Store methyl stearate at **-15 to -20°C** to maintain its solid form and stability.
What grades of methyl stearate does Molekula supply?
Molekula supplies methyl stearate in **technical/industrial grade** purity, suitable for most industrial applications.
Can Molekula supply methyl stearate in bulk quantities?
Yes, Molekula can supply methyl stearate in bulk, with quantities tailored to your specific requirements.
What documentation comes with an order of methyl stearate?
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.