Hexadecyltrimethylammonium bromide(CTAB)-99%-CAS 57-09-0

Introduction

Hexadecyltrimethylammonium Bromide (CTAB, CAS 57-09-0) is a high-purity cationic surfactant widely used in molecular biology, nanomaterials, and colloid chemistry. In life science research, CTAB DNA extraction is a classic method for isolating high-quality plant genomic DNA, effectively removing polysaccharides and polyphenols. In nanotechnology, CTAB is essential for gold nanorod and mesoporous silica synthesis, serving as a template and stabilizer. Biofargo offers ≥99% purity CTAB (molecular biology grade) in 100g and 500g packages, ensuring reliable performance, batch-to-batch consistency, and global compliance (COA and SDS available). As a trusted CTAB supplier in the USA, we provide fast shipping and dependable quality for laboratories worldwide.

Specification

Chemical & Regulatory Information

• UNSPSC Code: 12161902

• UNSPSC Category: Detergents / Surfactants

• Hazard Class: Class 9 (Miscellaneous Dangerous Substances)

• UN Number: UN377

• Packing Group (PG): III

• DG Classification: Yes (Dangerous Goods)

Solubility

• Water: Soluble (~13 g/L at 20°C)

• Methanol: Freely soluble

• Acetone: Slightly soluble

• Benzene & Diethyl Ether: Insoluble

Applications

• DNA & RNA Extraction: CTAB is widely used in plant genomic DNA isolation protocols, particularly effective in removing polysaccharides.

• Nanoparticle Synthesis: Used as a template and stabilizer for mesoporous silica materials and gold nanorods.

• Cationic Surfactant: Common in colloid chemistry and micelle formation.

• Phase-Transfer Catalyst: Facilitates organic reactions involving immiscible reactants.

• Personal Care: An active ingredient in antiseptic formulations and conditioners (as cetrimide derivatives).

Safety & Handling

• Handle in a well-ventilated area with appropriate PPE (gloves, goggles, lab coat).

• Avoid contact with skin, eyes, and clothing.

• Refer to the Safety Data Sheet (SDS) for full hazard, storage, and disposal information.

Storage Conditions

• Store at room temperature in a tightly sealed container.

• Hygroscopic – recommended to store under inert gas (e.g., nitrogen) to prevent moisture uptake.

• Keep away from heat and light.

Frequently Asked Questions (FAQ)

Q1: What is the main application of CTAB in molecular biology?
A1: CTAB is widely used in plant genomic DNA extraction, especially for tissues rich in polysaccharides and polyphenols. It is also used as a surfactant, nanoparticle synthesis template, and phase-transfer catalyst in chemistry and materials science.

Q2: How do you ensure the quality of your CTAB?
A2: Our CTAB is supplied with ≥99% purity, low moisture content (≤0.8%), and a clear white appearance. Each batch is strictly quality-controlled to ensure consistency and reliability for sensitive applications like DNA extraction and nanoparticle synthesis.

Q3: CTAB is hygroscopic—will it form clumps during storage?
A3: CTAB is prone to moisture uptake. To prevent clumping, it should be stored in a tightly sealed container at room temperature, ideally under an inert gas (nitrogen or argon) to minimize humidity exposure.

Q4: Is CTAB safe to handle in the lab?
A4: CTAB is classified as a Class 9 Dangerous Substance (UN377). It may cause irritation to skin, eyes, and respiratory tract. Always handle it in a well-ventilated area with proper PPE (gloves, goggles, lab coat) and consult the Safety Data Sheet (SDS) for detailed instructions.

Q5: Can residual CTAB affect downstream molecular biology experiments?
A5: Yes. If CTAB is not completely removed during DNA extraction, it may inhibit PCR and enzymatic reactions. Using high-purity CTAB and optimizing the washing steps minimizes this risk.

Q6: What do researchers care about most when purchasing CTAB?
A6: Researchers are most concerned about purity, batch-to-batch consistency, storage stability, and safety compliance. Reliable supply and technical documentation (COA, SDS) are also critical.

Documents

COA

SDS

Disclaimer: For laboratory research use only.