52367

Bromuro de hexadeciltrimetilamonio

suitable for ion pair chromatography, LiChropur^™

• Sinónimos: Bromuro de cetiltrimetilamonio, Bromuro de cetrimonio, Bromuro de palmitiltrimetilamonio, CTAB
• Fórmula lineal: CH₃(CH₂)₁₅N(Br)(CH₃)₃
• Número de CAS: 57-09-0
• Peso molecular: 364.45
• Beilstein/REAXYS Number: 3598189
• EC Number: 200-311-3
• MDL number: MFCD00011772
• UNSPSC Code: 12000000
• PubChem Substance ID: 329757827
• NACRES: NB.21

Propiedades

• description: cationic
• Quality Level: 100
• assay: ≥99.0% (AT)
• form: powder or crystals
• quality: LiChropur^™
• mol wt: average mol wt 62,000
• aggregation number: 170
• technique(s): 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

Descripción

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.

Hexadecyltrimethylammonium bromide (CTAB) is one of the most studied cationic surfactant.

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

Aditivo para cromatografía de par iónico;Reactivo par iónico para TLC

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

Información de seguridad

• pictograms: GHS08,GHS05,GHS07,GHS09
• signalword: Danger
• hcodes: H302,H315,H318,H335,H373,H410
• pcodes: 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
• target_organs: Gastrointestinal tract, Respiratory system
• Storage Class: 11 - Combustible Solids
• wgk_germany: WGK 3
• flash_point_f: 471.2 °F - closed cup
• flash_point_c: 244 °C - closed cup
• ppe: dust mask type N95 (US), Eyeshields, Faceshields, Gloves