52367

Bromure d′hexadécyltriméthylammonium

suitable for ion pair chromatography, LiChropur^™

• Synonyme(s) : Bromure de cétrimonium, Bromure de cétyltriméthylammonium, Bromure de palmityltriméthylammonium, CTAB
• Formule linéaire : CH₃(CH₂)₁₅N(Br)(CH₃)₃
• Numéro CAS: 57-09-0
• Poids moléculaire : 364.45
• UNSPSC Code: 23151817
• NACRES: NB.21
• PubChem Substance ID: 329757827
• EC Number: 200-311-3
• Beilstein/REAXYS Number: 3598189
• MDL number: MFCD00011772

Propriétés

• description: cationic
• Quality Segment: 100
• assay: ≥99.0% (AT)
• form: powder or crystals
• quality: LiChropur^™
• mol wt: average mol wt 62,000
• aggregation number: 170
• technique(s): HPLC: suitable, LC/MS: suitable, ion chromatography: suitable, ion pair chromatography: suitable
• CMC: 0.92
• mp: 248-251 °C (lit.)
• solubility: H₂O: soluble 36.4 g/L at 20 °C (completely)
• λ: 10 % in methanol
• UV absorption: λ: 240 nm A_max: 0.04, λ: 250 nm A_max: 0.03, λ: 260 nm A_max: 0.02, λ: 500 nm A_max: 0.02
• HLB: 11
• suitability: corresponds to standard for filter test
• SMILES string: [Br-].CCCCCCCCCCCCCCCC[N+](C)(C)C
• InChI: 1S/C19H42N.BrH/c1-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20(2,3)4;/h5-19H2,1-4H3;1H/q+1;/p-1
• InChI key: LZZYPRNAOMGNLH-UHFFFAOYSA-M

Description

General description

Hexadecyltrimethylammonium bromide (CTAB) is a quaternary ammonium salt containing one long hydrophobic alkyl chain called amphiphile. The hydrophobic ions interact forming discrete aggregates possessing a hydrophobic core and a polar surface, called micelles in polar solution.

Application

CTAB was used in preparing buffer solutions prepared during the determination of organic acids in port wine capillary zone electrophoresis using indirect UV detection with 2,6-pyridinedicarboxylic acid.

Other Notes

Additif pour la chromatographie de paires d′ions; réactif de paire d′ions pour la CCM

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Informations sur la sécurité

• Pictogrammes: GHS08,GHS05,GHS07,GHS09
• Mot-clé: Danger
• Codes de danger: H302,H315,H318,H335,H373,H410
• Mentions de précaution: P273 - P280 - P301 + P312 - P302 + P352 - P305 + P351 + P338 - P314
• Hazard Classifications: Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 1 - Eye Dam. 1 - Skin Irrit. 2 - STOT RE 2 Oral - STOT SE 3
• Organes cibles: Gastrointestinal tract, Respiratory system
• Classe de stockage: 11 - Combustible Solids
• Que se passe-t-il ?: WGK 3
• Point d'éclair (°F): 471.2 °F - closed cup
• Point d'éclair (°C): 244 °C - closed cup
• EPI (équipement de protection individuelle): dust mask type N95 (US), Eyeshields, Faceshields, Gloves