Sodium dodecyl sulfate
SIAL/L5750 - 92.5-100.5% based on total alkyl sulfate content basis
Synonym: Dodecyl sodium sulfate; Dodecyl sulfate sodium salt; Lauryl sulfate sodium salt; SDS; Sodium lauryl sulfate
CAS Number: 151-21-3
Empirical Formula (Hill Notation): C12H25NaO4S
Molecular Weight: 288.38
EC Number: 205-788-1
MDL Number: MFCD00036175
Linear Formula: CH3(CH2)11OSO3Na
Product Type: Chemical
| aggregation number | 62 |
| application(s) | (Western Blot) |
| assay | 92.5-100.5% based on total alkyl sulfate content basis |
| CMC | 7-10 mM (20-25°C) |
| description | anionic |
| greener alternative category | Aligned ![]() |
| greener alternative product characteristics | Catalysis Learn more about the Principles of Green Chemistry . |
| HLB | 40 |
| InChI | 1S/C12H26O4S.Na/c1-2-3-4- |
| InChI key | DBMJMQXJHONAFJ-UHFFFAOYSA |
| mol wt | 288.38 g/mol |
| mp | 204-207 °C (lit.) |
| Quality Level | 200 ![]() |
| SMILES string | [Na+].CCCCCCCCCCCCOS([O-] |
| solubility | water: soluble |
| sustainability | Greener Alternative Product |
| technique(s) | : suitable using [cell culture | mammalian: suitable] |
| transition temp | cloud point >100 °C |
| Analysis Note: | Actual composition given on label |
| Analysis Note: | Predominantly (approx. 70%) C12; lauryl sulfate, sodium salt; balance consists of higher homologs. |
| Application: | Anionic detergent |
| Application: | Sodium dodecyl sulfate has been used: • to dissolve insoluble purple formazan in 3-(4,5-dimethylthiazol-2- • to perform SDS–PAGE of yeast tubulin • as an additive in linolenic acid solution to assess the total antioxidative activity (TAA) of the bacteria using the linolenic acid test (LA-test) |
| Biochem/physiol Actions: | Sodium dodecyl sulfate (SDS)/lauryl sulfate, an ionic detergent has the ability to distract biological membranes. It can block RNase and deoxyribonuclease (DNase) activity. SDS is one of the main constituents of several reagents, that are used to purify nucleic acids. It is also considered as a permeability enhancer in oral formulations. |
| General description: | We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product is used as a surfactant to enhance catalysis. Click here ![]() |
| Packaging: | 1 kg in poly bottle |
| Packaging: | 100, 500 g in poly bottle |
| Packaging: | 5 kg in poly drum |
| Symbol | ![]() GHS05,GHS07 |
| Signal word | Danger |
| Hazard statements | H302 - H315 - H318 - H412 |
| Precautionary statements | P264 - P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-21/22-37/38-41 |
| Safety Statements | 26-36/37-39 |
| RIDADR | UN1325 - class 4.1 - PG 3 - Flammable solids, organic, n.o.s., H |
| WGK Germany | WGK 2 |
| Flash Point(F) | 338.0 °F |
| Flash Point(C) | 170 °C |
| Purity | 92.5-100.5% based on total alkyl sulfate content basis |
| mp | 204-207 °C (lit.) |
| UNSPSC | 12161900 |



