Molekula
SDS (Sodium dodecyl 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 dodecyl sulfate (SDS) is an anionic surfactant widely used as a detergent, emulsifier, and wetting agent in laboratories, pharmaceuticals, and industrial cleaning applications. It is a key component in cell lysis buffers, household detergents, and personal care products due to its strong solubilizing properties. This chemical has a CAS number of 151-21-3, with the molecular formula C12H25NaO4S and a molecular weight of 288.38 g/mol. It is stored at ambient conditions but requires careful handling, as it carries a **Danger** signal word for its hazardous nature. Molekula supplies SDS 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.
Often bought together
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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500 g — £60.70 per pack ex VAT · £72.84 inc. VAT
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1 kg — £109.10 per pack ex VAT · £130.92 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 light yellow powder |
| Heavy metals | ≤ 20ppm |
| Drying loss | ≤ 4.0% |
| Identification | Conforms to reference |
| Pseudomonas aeruginosa | Not Detected |
| Assay | ≥ 70.0% |
| Staphylococcus aureus | Not Detected |
| Sodium chloride | ≤ 8.0% |
| Sodium sulphate | ≤ 5.0% |
| E. Coli | Not Detected |
| Mould & Yeast | ≤ 100cfu/g |
| Total Aerobic Bacteria | ≤ 1,000cfu/g |
| Total Sodium Salt Content | ≥ 95.0% (dodecyl & tetradecyl) |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Flash Point | 150 °C |
| Transport Class | 4.1 |
| Packing Group | III |
| Acidity | Neutral |
Literature values
Published physical properties of the substance, not batch specifications.
| Property | Value |
|---|---|
| Appearance | White or cream-colored crystals, flakes, or powder |
| Odour | Faint odor of fatty substances |
| Melting Point | 205.5 °C |
| log P (octanol/water) | 1.60 |
Source: PubChem CID 3423265 (HSDB, DrugBank)
Identification
| Property | Value |
|---|---|
| SKU | 15171947 |
| CAS Number | 151-21-3 |
| IUPAC Name | sodium dodecyl sulfate |
| EC Number | 205-788-1 |
| Molecular Formula | C12H25NaO4S |
| Molecular Weight | 288.38 |
| Exact Mass | 288.1371 |
| SMILES | CCCCCCCCCCCCOS(=O)(=O)[O-].[Na+] |
| InChIKey | DBMJMQXJHONAFJ-UHFFFAOYSA-M |
| InChI | InChI=1S/C12H26O4S.Na/c1-2-3-4-5-6-7-8-9-10-11-12-16-17(13,14)15;/h2-12H2,1H3,(H,13,14,15);/q;+1/p-1 |
| PubChem CID | 3423265 |
| UN Number | UN1325 |
| REACH Code | Y110 |
| TSCA Listed | Yes |
| HTS Code | 2904105000 |
| Tariff Code | 2904100090 |
Safety & GHS
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Flammable
GHS02
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Corrosive
GHS05
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Health Hazard
GHS07
Hazard statements
- H228 Flammable solid
- H302+332 Harmful if swallowed or inhaled
- H315 Causes skin irritation
- H318 Causes serious eye damage
- H335 May cause respiratory irritation
- H412 Harmful to aquatic life with long lasting effects
Precautionary statements
- P210 Keep away from heat/sparks/open flames/hot surfaces - No smoking
- P260 Do not breathe dust/fume/gas/mist/vapours/spray
- P273 Avoid release to the environment
- P280 Wear protective gloves/protective clothing/eye protection/face protection
- P301+310 IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
Documents
Safety Data Sheets (SDS)
Available in English, German, Spanish, French, Italian, Portuguese, Arabic, Dutch.
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
- Anticerumen
- Dodecyl sodium sulfate
- Duponal
- Duponol C
- Neutrazyme
- Sodium dodecyl sulfate
- Sodium dodecyl sulphate
- SODIUM LAURYL SULFATE
- Sodium lauryl sulphate
- Sodium n-dodecyl sulfate
Frequently asked questions
What is SDS (Sodium dodecyl sulfate) commonly used for?
SDS is primarily used as an anionic surfactant in detergents, cosmetics, toothpaste, and as a laboratory reagent for protein denaturation and membrane solubilization.
What is the molecular formula and molecular weight of SDS?
The molecular formula is **C₁₂H₂₅NaO₄S**, and the molecular weight is **288.38 g/mol**.
How should SDS be stored?
Store SDS at **ambient temperature** in a cool, dry place, away from incompatible substances like oxidizing agents.
What grades of SDS does Molekula supply?
Molekula supplies **analytical and industrial grades** of SDS, meeting purity standards for laboratory and commercial applications.
Can Molekula supply SDS in bulk quantities?
Yes, Molekula can provide SDS in **bulk quantities**, with flexible packaging options (drums, bags, or custom solutions) for large-scale orders.
What documentation comes with an SDS order?
Each SDS 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.