ChemicalBook CAS DataBase List 2044-56-6

2044-56-6

Name	LITHIUM DODECYL SULFATE
CAS	2044-56-6
EINECS(EC#)	218-058-2
Molecular Formula	C12H25LiO4S
MDL Number	MFCD00007467
Molecular Weight	272.33
MOL File	2044-56-6.mol

Synonyms

DODECYL LITHIUM SULFATE DODECYL SULFATE LITHIUM SALT DODECYL SULPHATE, LITHIUM SALT LAURYL SULFATE LITHIUM SALT LAURYL SULPHATE, LITHIUM SALT LDS LITHIUM DODECYL SULFATE LITHIUM DODECYL SULPHATE LITHIUM LAURYL SULFATE LITHIUM LAURYL SULPHATE Laurylalcoholsulfate,lithiumsalt Sulfuricacid,monododecylester,lithiumsalt LAURYL SULFATE LITHIUM SIGMAULTRA LAURYL SULFATE LITHIUM ELECTROPHORESIS*R EAGENT LAURYL SULFATE LITHIUM, MOLECULAR*BIOLOG Y REAGENT Lithium dodecyl sulfate, 99+% LITHIUMDODECYLSULFATE,ULTRAPURE LITHIUM DODECYL SULFATE (LAURYL SULFATE LITHIUM SALT) Lithium dodecyl sulphate >98% LITHIUM LAURYL SULPHATE extrapure

Chemical Properties

Appearance	solid
Melting point	100-123 °C
Boiling point	199℃[at 101 325 Pa]
density	1.168[at 20℃]
vapor pressure	6.5Pa at 20℃
storage temp.	Store at RT.
solubility	H₂O: 0.1 M at 20 °C, clear, colorless
form	Shiny Crystalline Flakes or Powder
color	White
PH	pH(0.25mol/l, 25℃) : 5.0～10.5
Stability:	Stable. Incompatible with strong oxidizing agents.
Water Solubility	Soluble in water.
BRN	5186718
InChI	InChI=1S/C12H26O4S.Li/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
InChIKey	YFVGRULMIQXYNE-UHFFFAOYSA-M
SMILES	C(COS([O-])(=O)=O)CCCCCCCCCC.[Li+]
CAS DataBase Reference	2044-56-6(CAS DataBase Reference)
EPA Substance Registry System	Sulfuric acid, monododecyl ester, lithium salt (2044-56-6)
Absorption	≤0.05 at 260nm (3% solution) ≤0.05 at 280nm (3% solution)

Safety Data

Symbol(GHS)	GHS02,GHS05,GHS07
Signal word	Danger
Hazard statements	H228-H315-H318-H335
Precautionary statements	P210-P280-P302+P352-P305+P351+P338+P310
Hazard Codes	Xi,C,F
Risk Statements	R36/37/38:Irritating to eyes, respiratory system and skin . R34:Causes burns. R20/21/22:Harmful by inhalation, in contact with skin and if swallowed . R15:Contact with water liberates extremely flammable gases. R14:Reacts violently with water. R11:Highly Flammable. less more
Safety Statements	S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice . S36:Wear suitable protective clothing . S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) . S43:In case of fire, use ... (indicate in the space the precise type of fire-fighting equipment. If water increases the risk add-Never use water) . S36/37/39:Wear suitable protective clothing, gloves and eye/face protection . S16:Keep away from sources of ignition-No smoking . S7/8:Keep container tightly closed and dry . less more
RIDADR	UN1325 - class 4.1 - PG 3 - Flammable solids, organic, n.o.s., HI: all
WGK Germany	3
F	3
TSCA	Yes
REACH Registrations	Active
HazardClass	4.1
HS Code	29209090
Storage Class	4.1B - Flammable solid hazardous materials
Hazard Classifications	Acute Tox. 4 Oral Aquatic Chronic 3 Eye Dam. 1 Flam. Sol. 1 Skin Irrit. 2 STOT SE 3

Hazard Information

Description

Lithium dodecyl sulfate (LDS) is an anionic detergent and surfactant that is frequently used in electrophoresis and chromatography. LDS may be substituted for sodium dodecyl sulfate (SDS) in electrophoresis under cold conditions. The use of LDS in micellar electrokinetic chromatography has been extensively studied. A report has been published on the partition equilibria of LDS between water and bilayer membranes. LDS has been utilized in protein electrophoresis and proteomics studies. The three-dimensional structure of the amyloid β-protein fragment 25-35 has been investigated in LDS micelles by two-dimensional 1HNMR. LDS has been used to induce changes in protein conformation.

Chemical Properties

solid

Uses

Lithium dodecyl sulfate has been used as a component of lysis buffer.

Flammability and Explosibility

Flammable

Purification Methods

Recrystallise this detergent twice from absolute EtOH and dry it under vacuum. Critical Micellar Concentration (CMC) in H2O is 8.77 x 10-3M. [Mukerjee et al. J Phys Chem 71 4166 1967, Mysels & Dulin J Colloid Sci 10 461 1955, Beilstein 1 IV 1847.]

Precautions

In general, autoclaved lauryl sulfate solutions undergo hydrolysis to yield lauryl alcohol, which precipitates from solution, and sulfuric acid, which decreases the solution pH. It is not advised to autoclave lauryl sulfate solutions.

References

[1] ELISABET FUGUET. Solute−Solvent Interactions in Micellar Electrokinetic Chromatography. 6. Optimization of the Selectivity of Lithium Dodecyl Sulfate−Lithium Perfluorooctanesulfonate Mixed Micellar Buffers[J]. Analytical Chemistry, 2002, 74 17: 4447-4455. DOI:10.1021/ac0201530.
[2] M D TRONE. Characterization of chemical selectivity in micellar electrokinetic chromatography. VI. Effects of surfactant counter-ion.[J]. Journal of Chromatography A, 2000, 888 1-2: 229-240. DOI:10.1016/s0021-9673(00)00515-x.
[3] GARY H. PERDEW Daniel P S Henry W Schaup. The use of a zwitterionic detergent in two-dimensional gel electrophoresis of trout liver microsomes[J]. Analytical biochemistry, 1983, 135 2: Pages 453-455. DOI:10.1016/0003-2697(83)90711-X.
[4] SHINJI KONDOU. Concentrated Lithium Dodecyl Sulfate Aqueous Electrolytes: Utilizing Self-Assembly and Interfacial Adsorption for Aqueous Li-ion Batteries[J]. ChemElectroChem, 2022, 9 20. DOI:10.1002/celc.202200870.

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