87708

Bromure de tétraméthylammonium

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

• Formule linéaire : (CH₃)₄N(Br)
• CAS Number: 64-20-0
• Poids moléculaire : 154.05
• Beilstein: 3620955
• Numéro CE : 200-581-2
• Numéro MDL: MFCD00011626
• Code UNSPSC : 23151817
• ID de substance PubChem : 329769598
• Nomenclature NACRES : NB.21

Propriétés

• Description: cationic
• Niveau de qualité: 100
• Essai: ≥99.0% (AT)
• Forme: crystals
• Qualité: LiChropur^™
• Technique(s): ion pair chromatography: suitable
• Pf: >300 °C (lit.)
• λ: 10 % in H₂O
• Absorption UV: λ: 240 nm A_max: 0.06; λ: 250 nm A_max: 0.03; λ: 260 nm A_max: 0.02; λ: 500 nm A_max: 0.02
• Adéquation: corresponds to standard for filter test
• Chaîne SMILES: [Br-].C[N+](C)(C)C
• InChI: 1S/C4H12N.BrH/c1-5(2,3)4;/h1-4H3;1H/q+1;/p-1
• Clé InChI: DDFYFBUWEBINLX-UHFFFAOYSA-M

Description

Description générale

Ion-pairing reagents, when used as mobile phase additives, promote the analysis of ionic and highly polar substances on reversed phase HPLC columns. The purity of mobile phase additives is of highest significance for their effective application. Sigma-Aldrich makes available a variety of tailor-made reagents for anionic (quaternary ammonium and phosphonium salts) and cationic (alkanesulfonates) separations. All mobile phase additives are tested thoroughly with special consideration on the demands of modern reversed phase HPLC:

Application

• pH Standardization in Analytical Chemistry: Buffers serve as critical components in the batch-to-batch reproducibility studies for primary pH methods, ensuring high precision in pH measurement across various scientific disciplines, from pharmaceuticals to environmental science (Asakai et al., 2024).

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Informations légales

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS06
• Mention d'avertissement: Danger
• Mentions de danger: H300
• Conseils de prudence: P301 + P330 + P331 + P310
• Classification des risques: Acute Tox. 2 Oral
• Code de la classe de stockage: 6.1A - Combustible acute toxic Cat. 1 and 2 / very toxic hazardous materials
• Classe de danger pour l'eau (WGK): WGK 3
• Point d'éclair (°F): Not applicable
• Point d'éclair (°C): Not applicable
• Équipement de protection individuelle: Eyeshields, Faceshields, Gloves, type P2 (EN 143) respirator cartridges