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Sigma-Aldrich

Sodium dodecyl sulfate

≥98.0% (GC)

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Synonym(s):
Dodecyl sodium sulfate, Dodecyl sulfate sodium salt, Lauryl sulfate sodium salt, SDS, Sodium lauryl sulfate
Linear Formula:
CH3(CH2)11OSO3Na
CAS Number:
151-21-3
Molecular Weight:
288.38
Beilstein:
3599286
EC Number:
205-788-1
MDL number:
MFCD00036175
eCl@ss:
39093306
PubChem Substance ID:
57652354
NACRES:
NA.21

description

anionic

Quality Level

200

Assay

≥98.0% (GC)

form

rod

mol wt

micellar avg mol wt 18,000

aggregation number

62

loss

≤5% loss on drying

CMC

7-10 mM (20-25°C)

mp

204-207 °C (lit.)

transition temp

cloud point >100 °C

solubility

H2O: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤200 mg/kg

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

HLB

40

SMILES string

[Na+].CCCCCCCCCCCCOS([O-])(=O)=O

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

InChI key

DBMJMQXJHONAFJ-UHFFFAOYSA-M

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Application

Sodium dodecyl sulfate has been used in western blot lysis buffer and also to prepare SDS-loading dye.
Anionic detergent

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.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H302 - H315 - H318 - H412

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 2

Flash Point(F)

338.0 °F

Flash Point(C)

170 °C

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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