Molekula
Sodium n-octyl sulfate
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
Sodium n-octyl sulfate is an anionic surfactant with strong wetting, foaming, and emulsifying properties, widely used in detergents, textile processing, and laboratory applications for its ability to reduce surface tension. This chemical has a CAS number of 142-31-4, with the molecular formula CH3(CH2)7OSO3Na and a molecular weight of 232.27 g/mol. It is stored at ambient conditions but requires careful handling due to its Danger classification under GHS regulations. Molekula supplies Sodium n-octyl sulfate 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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25 g — £310.00 per pack ex VAT · £372.00 inc. VAT
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100 g — £811.00 per pack ex VAT · £973.20 inc. VAT
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
| Property | Value |
|---|---|
| Appearance | White to Off-white powder |
| Water | ≤50.0% |
| Viscosity | ≤300CPS |
| Assay | 38 ~ 40% |
| pH (1% aq. sol.) | 8.0 ~ 10.0 |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Acidity | Neutral |
Identification
| Property | Value |
|---|---|
| SKU | 21564872 |
| CAS Number | 142-31-4 |
| IUPAC Name | sodium octyl sulfate |
| EC Number | 205-535-5 |
| Molecular Formula | CH3(CH2)7OSO3Na |
| Molecular Weight | 232.27 |
| Exact Mass | 232.0745 |
| SMILES | CCCCCCCCOS(=O)(=O)[O-].[Na+] |
| InChIKey | WFRKJMRGXGWHBM-UHFFFAOYSA-M |
| InChI | InChI=1S/C8H18O4S.Na/c1-2-3-4-5-6-7-8-12-13(9,10)11;/h2-8H2,1H3,(H,9,10,11);/q;+1/p-1 |
| PubChem CID | 2735107 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2920901000 |
| Tariff Code | 2920901090 |
Safety & GHS
-
Corrosive
GHS05
Hazard statements
- H315 Causes skin irritation
- H318 Causes serious eye damage
Precautionary statements
- P261 Avoid breathing dust/fume/gas/mist/vapours/spray
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P303+361 IF ON SKIN (or hair): Remove immediately all contaminated clothing. Rinse with water/shower
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
- P308+313 IF exposed or concerned: Get medical advice/attention
Documents
Safety Data Sheets (SDS)
Available in English, French, German, Italian, Portuguese, Russian, 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
- Cdc25 inhibitor
- Cycloryl OS
- Duponol 80
- OCTYL SODIUM SULFATE
- Sipex ols
- Sodium capryl sulfate
- Sodium octyl sulfate
- Sodium octyl sulphate
- Sulfuric acid, monooctyl ester, sodium salt
- Sulfuric acid, monooctyl ester, sodium salt (1:1)
Frequently asked questions
What is sodium n-octyl sulfate commonly used for?
It is primarily used as an anionic surfactant in detergents, emulsifiers, and wetting agents, as well as in laboratory applications like ion-pair reversed-phase HPLC, where it serves as an ion-pair reagent.
What is the chemical formula and molecular weight of sodium n-octyl sulfate?
The formula is CH₃(CH₂)₇OSO₃Na, and the molecular weight is 232.27 g/mol.
How should sodium n-octyl sulfate be stored?
Store at ambient temperature in a cool, dry place, away from incompatible substances and moisture.
What grades or purities of sodium n-octyl sulfate does Molekula supply?
Molekula supplies technical grade and analytical grade sodium n-octyl sulfate, depending on application requirements.
Can Molekula supply sodium n-octyl sulfate in bulk quantities?
Yes, Molekula can provide bulk quantities (5 kg, 25 kg, and larger) upon request for industrial or research applications.
What documentation comes with an order of sodium n-octyl sulfate?
Each order includes a Certificate of Analysis (CoA), Material Safety Data Sheet (MSDS), 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.