Sodium dodecyl sulfate

Sodium lauryl sulfate

Names
IUPAC name Sodium lauryl sulfate
Other names Sodium monododecyl sulfate; Sodium lauryl sulfate; Sodium monolauryl sulfate; Sodium dodecanesulfate; Sodium coco-sulfate; dodecyl alcohol, hydrogen sulfate, sodium salt; n-dodecyl sulfate sodium; Sulfuric acid monododecyl ester sodium salt;
Identifiers
CAS Number	151-21-3 Y
3D model (Jmol)	Interactive image
ChEBI	CHEBI:8984 Y
ChEMBL	ChEMBL23393 Y
ChemSpider	8677 Y
DrugBank	DB00815 Y
ECHA InfoCard	100.005.263
E number	E487 (thickeners, ...)
PubChem	3423265
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 Y Key: DBMJMQXJHONAFJ-UHFFFAOYSA-M Y 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 Key: DBMJMQXJHONAFJ-UHFFFAOYSA-M
SMILES CCCCCCCCCCCCOS(=O)([O-])=O.[Na+]
Properties
Chemical formula	NaC12H25SO4
Molar mass	288.372 g/mol
Appearance	white or cream-colored solid
Odor	odorless
Density	1.01 g/cm3
Melting point	206 °C (403 °F; 479 K)
Surface tension:
CMC	8.2 mM at 25 °C
Refractive index (nD)	1.461
Pharmacology
ATC code	A06AG11 (WHO)
Hazards
Lethal dose or concentration (LD, LC):
LD50 (median dose)	1288 mg/kg (rat, oral)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
N  (what is YN ?)
Infobox references

Sodium dodecyl sulfate, synonymously sodium lauryl sulfate (or laurilsulfate; SDS or SLS, respectively), is a synthetic organic compound with the formula CH₃(CH₂)₁₁SO₄Na. It is an anionic surfactant used in many cleaning and hygiene products. The sodium salt is of an organosulfate class of organics. It consists of a 12-carbon tail attached to a sulfate group, i.e., it is the sodium salt of dodecyl hydrogen sulfate, the ester of dodecyl alcohol and sulfuric acid. Its hydrocarbon tail combined with a polar "headgroup" give the compound amphiphilic properties and so make it useful as a detergent. Also derived as a component of mixtures produced from inexpensive coconut and palm oils, SDS is a common component of many domestic cleaning, personal hygiene and cosmetic, pharmaceutical, and food products, as well as of industrial and commercial cleaning and product formulations.

SDS is in the family of organosulfate compounds, and has the formula, CH₃(CH₂)₁₁SO₄Na; that is, it is the sodium salt of a 12-carbon alcohol that has been esterified to sulfuric acid. An alternative description is that it is an alkyl group with a pendant, terminal sulfate group attached. As a result of its hydrocarbon tail, and its anionic "head group", it has amphiphilic properties that allow it to form micelles, and so act as a detergent.