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87996

Supelco

Tetraoctylammonium bromide

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

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Linear Formula:
[CH3(CH2)7]4N(Br)
CAS Number:
Molecular Weight:
546.79
Beilstein:
4169176
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NB.21

description

cationic

Quality Level

Assay

≥99.0% (AT)

form

crystals

quality

LiChropur

technique(s)

ion pair chromatography: suitable

mp

95-98 °C (lit.)
95-98 °C

λ

10 % in methanol

UV absorption

λ: 240 nm Amax: 0.04
λ: 250 nm Amax: 0.03
λ: 260 nm Amax: 0.02
λ: 500 nm Amax: 0.02

suitability

corresponds to standard for filter test

SMILES string

[Br-].CCCCCCCC[N+](CCCCCCCC)(CCCCCCCC)CCCCCCCC

InChI

1S/C32H68N.BrH/c1-5-9-13-17-21-25-29-33(30-26-22-18-14-10-6-2,31-27-23-19-15-11-7-3)32-28-24-20-16-12-8-4;/h5-32H2,1-4H3;1H/q+1;/p-1

InChI key

QBVXKDJEZKEASM-UHFFFAOYSA-M

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General description

Tetraoctylammonium bromide (TOAB) is an ionophore or recognition element mostly used in potentiometric sensors.

Application

TOAB has been used as recognition element in formulating potentiometric membrane to develop an electronic tongue system for monitoring nitrogen species level in water samples. It may also be used as an ion pairing reagent for HPLC analysis during glucosinolate separation.

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Pictograms

Corrosion

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Dam. 1 - Skin Irrit. 2

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point(F)

213.8 °F - closed cup

Flash Point(C)

101 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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Separation of glucosinolates by high-performance liquid chromatography.
Helboe, Per, Ole Olsen, and Hilmer S?rensen.
Journal of Chromatography A, 197.2, 199-205 (1980)
Development and application of an electronic tongue for detection and monitoring of nitrate, nitrite and ammonium levels in waters.
Nu?ez, L., et al.
Microchemical Journal, Devoted to the Application of Microtechniques in All Branches of Science, 110, 273-279 (2013)
Lin Han et al.
Dalton transactions (Cambridge, England : 2003), 43(31), 11981-11987 (2014-06-28)
Phase transfer techniques possess remarkable advantages for the synthesis of inorganic nanomaterials. In contrast to the abundant reports on the preparation of noble metal nanoparticles using phase transfer, the number of semiconductor nanocrystals syntheses based on phase transfer techniques is
Yu Cheng et al.
Small (Weinheim an der Bergstrasse, Germany), 10(24), 5137-5150 (2014-08-12)
The blood-brain barrier (BBB) remains a formidable obstacle in medicine, preventing efficient penetration of chemotherapeutic and diagnostic agents to malignant gliomas. Here, a transactivator of transcription (TAT) peptide-modified gold nanoparticle platform (TAT-Au NP) with a 5 nm core size is

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