MC3000 - Carboxyl Mag Beads - Functionalized Magnetic Beads - Magnetic Beads (50nm-4.5μm) - By Products Type
Contact: 858-689-8808



These are hydrophilic Mono Mag (3 µm) with carboxylic acid groups. These surface groups allow covalent amide bond formation to proteins/peptides via primary amine (NH2) groups.


  • Immediate and gentle coupling at low temperature and neutral to low pH
  • Narrow size distribution, CV≤5%
  • Significant low non-specific binding to proteins and nucleic acid
  • Better or comparable performance with Dynabeads M-270 Carboxylic Acid and ProMag Carboxylic Acid (3 µm)

Typical SEM images of Mono Mag (3 µm) Beads

Ideal for isolation of cells. Immobilization of amine modified labile proteins/peptides and nucleic acids. Low non-specific binding of proteins and nucleic acids.

Product Description:
Carboxylic Acid Modified Monodispersed Superparamagnetic Beads
Solvent: DI H2O, 0.05% NaN3, 0.01% Tween 20
30 mg/mL
Particle Size by SEM:
2.8 μm
Surface Group:
Carboxylic Acid
Functional Group Density:
0.4 mmol/g
Magnetic Content: 28
Number of Beads in 1 mL:
2-8 °C; Do not freeze. Keep vial upright.


Catalog# Product Unit Size Unit Price Quantity
MC3002 Carboxyl Mono Mag Magnetic Beads-10 mL 10 mL $569.00
MC3001 Carboxyl Mono Mag Magnetic Beads-2 mL 2 mL $189.00
MC3003 Carboxyl Mono Mag Magentic Beads-50 mL 50 mL $1,749.00
Particle Size 3
Product Description Carboxyl Mono Mag Magnetic Beads, 3 µm
Surface Hydrophilic
Functionality Carboxylic Acid


1.1  Product identifiers

Product name:  Carboxyl Mono Mag Magnetic Beads

Catalog Number:  MC0500 – MC4500

 1.2  Relevant identified uses of the substance or mixture and uses advised against

Identified uses:  Laboratory chemicals, Manufacture of substances

1.3  Details of the supplier of the safety data sheet

Company:  Ocean NanoTech

                     7964 Arjons Dr

                     Suite G

                     San Diego, CA 92126

Telephone:  858-689-8808

Fax:  858-689-8809

1.4  Emergency telephone number

Emergency Phone #:  +1-703-527-3887 (CHEMTREC)





1. Can the magnetic beads be sterilized?
Yes, carboxylic acid or amine functionalized and silica coated magnetic beads can be sterilized by washing with 70% ethanol. Protein conjugated beads cannot be sterilized.

2. Can the magnetic beads be sonicated?
Yes, short time sonication (couple seconds up to 5 minutes) is a good way to reduce aggregation of the beads and create homogenous conditions for coating or coupling. However, we don’t recommend to sonicate our magnetic beads over 10 min especially for protein conjugated beads. 

3. Are magnetic beads compatible with organic solvent?
Our magnetic beads are compatible for most polar solvent such as ethanol, methanol, acetone, isopropanol, dimethyl sulfoxide (DMSO), dimethylformamide (DMF), and acetonitrile.

4. Are magnetic beads compatible with urea?
Yes, they are compatible with 6–8 M urea.

5. Are magnetic beads compatible with EDTA?
Yes, our magnetic beads are compatible with EDTA.