H9151

Hexadecyltrimethylammonium bromide

BioXtra, ≥99%

• Synonym(s): CTAB, Cetrimonium bromide, Cetyltrimethylammonium bromide, Palmityltrimethylammonium bromide
• Linear Formula: CH₃(CH₂)₁₅N(Br)(CH₃)₃
• CAS Number: 57-09-0
• Molecular Weight: 364.45
• Beilstein/REAXYS Number: 3598189
• EC Number: 200-311-3
• MDL number: MFCD00011772
• UNSPSC Code: 12352201
• PubChem Substance ID: 24895846
• NACRES: NA.21

Properties

• description: cationic
• product line: BioXtra
• assay: ≥99%
• form: crystalline; powder or crystals
• mol wt: micellar avg mol wt 62,000
• aggregation number: 170
• impurities: ≤0.001% Phosphorus (P); ≤0.1% Insoluble matter
• ign. residue: ≤0.1%
• pH: 5.0-7 (25 °C, 36.4 g/L)
• CMC: 0.92 mM (20-25°C)
• mp: 248-251 °C (lit.)
• solubility: H₂O: 0.1 M, clear, colorless to faintly yellow
• anion traces: sulfate (SO₄^2-): ≤0.05%
• cation traces: Al: ≤0.0005%; Ca: ≤0.0005%; Cu: ≤0.0005%; Fe: ≤0.0005%; K: ≤0.005%; Mg: ≤0.0005%; Na: ≤0.005%; Pb: ≤0.001%; Zn: ≤0.0005%
• HLB: 10
• 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

Application

Hexadecyltrimethylammonium bromide has been used:

• in gold nanorods preparation
• as an additive in Ugi reaction
• as a surfactant
• for homogenisation of intestinal tissues for myeloperoxidase activity

Biochem/physiol Actions

Hexadecyltrimethylammonium bromide also called cetyltrimethylammonium bromide (CTAB), is a cationic surfactant. CTAB is employed for extraction of DNA. CTAB method is efficient, cost and time effective for DNA extraction. CTAB is used as a shaping material and reducing agent for nanoparticle generation.

Safety Information

• 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