Sodium dodecyl sulfate
SIGMA/71729 - ≥98.0% (GC)
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 |
| anion traces | chloride (Cl-): ≤200 mg/kg |
| assay | ≥98.0% (GC) |
| cation traces | Ca: ≤10 mg/kg |
| Cd: ≤5 mg/kg | |
| Co: ≤5 mg/kg | |
| Cr: ≤5 mg/kg | |
| Cu: ≤5 mg/kg | |
| Fe: ≤5 mg/kg | |
| K: ≤200 mg/kg | |
| Mg: ≤5 mg/kg | |
| Mn: ≤5 mg/kg | |
| Ni: ≤5 mg/kg | |
| Pb: ≤5 mg/kg | |
| Zn: ≤5 mg/kg | |
| CMC | 7-10 mM (20-25°C) |
| description | anionic |
| form | rod |
| HLB | 40 |
| InChI | 1S/C12H26O4S.Na/c1-2-3-4- |
| InChI key | DBMJMQXJHONAFJ-UHFFFAOYSA |
| loss | ≤5% loss on drying |
| mol wt | micellar avg mol wt 18,000 |
| mp | 204-207 °C (lit.) |
| Quality Level | 200  |
| SMILES string | [Na+].CCCCCCCCCCCCOS([O-] |
| solubility | H2O: 0.1 M at 20 °C, clear, colorless |
| transition temp | cloud point >100 °C |
| Application: | Anionic detergent |
| Application: | Sodium dodecyl sulfate has been used in western blot lysis buffer and also to prepare SDS-loading dye. |
| 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. |
| 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 | ≥98.0% (GC) |
| mp | 204-207 °C (lit.) |
| UNSPSC | 12161900 |