36932

Hexadecyltrimethylammonium bromide

analytical standard

• 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: 3598189
• EC Number: 200-311-3
• MDL number: MFCD00011772
• UNSPSC Code: 41116107
• PubChem Substance ID: 329755544
• NACRES: NA.24

Properties

• grade: analytical standard
• Quality Level: 100
• description: cationic
• Assay: 98-102%
• shelf life: limited shelf life, expiry date on the label
• mol wt: 364.45 g/mol
• technique(s): HPLC: suitable; gas chromatography (GC): suitable
• mp: 248-251 °C (lit.)
• solubility: H₂O: soluble 36.4 g/L at 20 °C (completely)
• application(s): cleaning products; cosmetics; environmental; food and beverages; personal care
• format: neat
• 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

Cetrimonium bromide(CTAB) is a quaternary ammonium derivative known to enhance anti-tumor activity. It is one of the components of the broad-spectrum antiseptic cetrimide[1] and may also be used as a buffer for DNA extraction.[2]

This substance is listed on the positive list of the EU regulation 10/2011 for plastics intended to come into contact with food. Find all available reference materials for compounds listed in 10/2011 here

Application

CTAB may be used as a reference standard for the determination of:

• CTAB in various water samples by combining a dispersive liquid-liquid microextraction (DLLME) technique with high performance liquid chromatography.[2]
• CTAB in pharmaceutical formulations by reversed-phase high-performance liquid chromatography (RP- HPLC).[3]

Refer to the product′s Certificate of Analysis for more information on a suitable instrument technique. Contact Technical Service for further support.

Safety Information

• Pictograms: GHS08,GHS05,GHS07,GHS09
• Signal Word: Danger
• Hazard Statements: H302,H315,H318,H335,H373,H410
• Precautionary Statements: 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 Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): 471.2 °F - closed cup
• Flash Point(C): 244 °C - closed cup
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves