Sodium 1-octanesulfonate monohydrate

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

1-Octanesulfonic acid sodium salt monohydrate
Linear Formula:
CH3(CH2)6CH2SO3Na · H2O
CAS Number:
Molecular Weight:
Beilstein/REAXYS Number:
EC Number:
MDL number:
PubChem Substance ID:
Pricing and availability is not currently available.

Quality Level




≥99.0% (T)



mol wt

234.29 g/mol


HPLC: suitable
ion pair chromatography: suitable
protein purification: suitable


≥300 °C (lit.)


10 % in H2O

UV absorption

λ: 210 nm Amax: 0.1
λ: 220 nm Amax: 0.06
λ: 230 nm Amax: 0.04
λ: 260 nm Amax: 0.02
λ: 500 nm Amax: 0.02


corresponds to standard for RP gradient test
corresponds to standard for filter test

SMILES string




InChI key


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General description

Sodium 1-octanesulfonate monohydrate is an ion-pair reagent suitable for cation separation sorted by carbon chain length.


Sodium 1-octanesulfonate monohydrate may be used as an ion pair reagent for the determination of trigonelline in coffee samples by ion-pair chromatography. It may also be used as a mobile phase additive and diluent in the identification, assay and impurity profile analysis of methylseleno-L-cysteine (L-SeMC) bulk drug by reversed-phase ion-pairing HPLC method with UV detection.

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Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves


NONH for all modes of transport

WGK Germany


Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Certificate of Analysis
Certificate of Origin
Validation of a Stability-Indicating Method for Methylseleno-l-Cysteine (l-SeMC)
Canady K, et al.
Journal of Chromatographic Science, 54(1), 22-27 (2016)
Low pressure ion pair chromatography with amperometric detection for the determination of trigonelline in coffee samples
Sousa MBT, et al.
Food Research International, 114, 223-229 (2018)
Rapid and simple analysis of paraquat in tissue homogenate by ultra-high performance liquid chromatography.
Merritt, T. J. S., et al.
Analytical Methods : Advancing Methods and Applications, 3, 1428-1432 (2011)
Kamila Syslová et al.
Journal of chromatography. A, 1218(21), 3382-3391 (2011-03-15)
A sensitive assay method was developed for a parallel, rapid and precise determination of dopamine and its metabolites, homovanillic acid, 3-methoxytyramine and 3,4-dihydroxyphenylacetic acid, from brain microdialysates. The method consisted of a pre-treatment step, freeze-drying (lyophilization), to concentrate dopamine and...
Maria Addolorata Saracino et al.
Journal of pharmaceutical and biomedical analysis, 104, 122-129 (2014-12-17)
A new microextraction by packed sorbent (MEPS) procedure coupled to a high-performance liquid chromatographic method has been developed for quantitation of catecholamines (i.e. norepinephrine, epinephrine and dopamine) in innovative biological samples, namely dried plasma and urine spots. Analyses were carried...
Because reversed-phase HPLC is primarily dependent on hydrophobic interactions between the stationary phase and analyte, ion pairing is occasionally necessary to obtain sufficient retention of polar, ionizable compounds.
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