75073

Sodium octyl sulfate

suitable for ion pair chromatography, LiChropur^™, ≥99.0% (T)

• Synonym(s): Octyl sulfate sodium salt
• Linear Formula: CH₃(CH₂)₇OSO₃Na
• CAS Number: 142-31-4
• Molecular Weight: 232.27
• Beilstein/REAXYS Number: 3658635
• EC Number: 205-535-5
• MDL number: MFCD00007470
• UNSPSC Code: 23151816
• PubChem Substance ID: 329766106
• NACRES: NB.21

Properties

• description: anionic
• Quality Level: 100
• assay: ≥99.0% (T)
• form: crystals
• quality: LiChropur^™
• mol wt: 232.27 g/mol
• technique(s): ion pair chromatography: suitable
• mp: 195 °C (dec.) (lit.)
• λ: 10 % in H₂O
• UV absorption: λ: 210 nm A_max: 0.1; λ: 220 nm A_max: 0.06; λ: 230 nm A_max: 0.04; λ: 260 nm A_max: 0.02; λ: 500 nm A_max: 0.02
• suitability: corresponds to standard for RP gradient test; corresponds to standard for filter test
• SMILES string: [Na+].CCCCCCCCOS([O-])(=O)=O
• InChI: 1S/C8H18O4S.Na/c1-2-3-4-5-6-7-8-12-13(9,10)11;/h2-8H2,1H3,(H,9,10,11);/q;+1/p-1
• InChI key: WFRKJMRGXGWHBM-UHFFFAOYSA-M

Description

General description

Sodium octyl sulfate (SOS) is an ion-pair reagent, an anionic surfactant with an 8-carbon tail[1] suitable for cationic separation sorted by carbon chain length.

Application

Sodium octyl sulfate (SOS) may be used as an ion-pairing reagent:

• For the retention of catechols in reversed-phase high-performance liquid chromatography of catecholamines and their congeners.[2]
• For the separation of asymmetric dimethylhydrazine (ADMH) and its decomposition products using ion-pair chromatography.[3]

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 2
• ppe: dust mask type N95 (US), Eyeshields, Gloves