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Tetrabutylammonium bisulfate

suitable for ion pair chromatography, LiChropur, ≥99.0%

Tetrabutylammonium hydrogen sulfate
Linear Formula:
CAS Number:
Molecular Weight:
EC Number:
MDL number:
PubChem Substance ID:

Quality Level




≥99.0% (T)




HPLC: suitable
ion pair chromatography: suitable


171-174 °C

anion traces

bromide (Br-): ≤50 mg/kg


10 % in H2O

UV absorption

λ: 210 nm Amax: 0.06
λ: 220 nm Amax: 0.05
λ: 230 nm Amax: 0.03
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

Tetrabutyammonium bisulfate (TBAHS) is an ion-pairing reagent. It acts as a catalyst in hydrolysis of aziridines and epoxides and the catalyst can be recycled.


TBAHS was suitable as ion-pairing reagent in determination and separation of thallium using ionic liquid-assisted ion-pairing liquid-liquid microextraction and inductively coupled plasma mass spectrometry. It was suitable as mobile phase component for a HPLC-UV analysis to quantify chondroitin sulfate.

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany


CorrosionExclamation mark

Signal Word


Hazard Statements

Hazard Classifications

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

Storage Class Code

8A - Combustible, corrosive hazardous materials

WGK Germany


Flash Point(F)

348.1 °F - closed cup

Flash Point(C)

175.6 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Certificate of Analysis

Certificate of Origin

David Ji et al.
Journal of AOAC International, 90(3), 659-669 (2007-06-22)
A method to quantify chondroitin sulfate in raw materials and dietary supplements at a range of about 5 to 100% (w/w) chondroitin sulfate has been developed and validated. The chondroitin sulfate is first selectively hydrolyzed by chondroitinase ACII enzyme to...
Leticia B Escudero et al.
Journal of hazardous materials, 244-245, 380-386 (2012-12-29)
A fast and simple method involving separation and determination of thallium (Tl) species, based on novel ionic liquid-assisted ion pairing dispersive liquid-liquid microextraction (DLLME) method, was developed. Initially, Tl(III) was selectively complexed with chloride ion to form [TlCl(4)](-) chlorocomplex. Subsequently...
Ren-Hua Fan et al.
Organic & biomolecular chemistry, 1(9), 1565-1567 (2003-08-21)
Bu4NHSO4 (TBAHS) is an effective catalyst for the hydrolysis of aziridines and epoxides under mild and non-metal conditions to give the corresponding beta-amino alcohols and 1,2-diols in high yields. The catalyst can be recycled.
K M Frankowski et al.
Journal of dairy science, 97(9), 5356-5370 (2014-07-16)
Many food companies are trying to limit the amount of sodium in their products. Permeate, the liquid remaining after whey or milk is ultrafiltered, has been suggested as a salt substitute. The objective of this study was to determine the...
Erbo Shi et al.
Organic letters, 14(13), 3384-3387 (2012-06-27)
A metal-free C-H oxidation for the construction of allylic esters has been developed. The use of a commercially available and inexpensive catalyst and oxidant, and readily available starting materials, coupled with the operational simplicity of the reaction, renders the methodology...


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