Protein Modification Reagents
Rockland Immunochemicals Collagenase Type 3 - MB-120-0100
Collagenase Type 3 is lower in secondary proteolytic contaminant activities but with typical collagenase activity. It is suggested for mammary primary cell isolation. Collagenase is typically used at concentrations from 0.05 % to 0.5 % (w/v) in balanced salt solutions such as Hank’s, Earle’s and others. For best results the precise mixture of collagenase and proteolytic activities must be tailored to the tissue to be dissociated. Specific conditions for reactivity should be optimized by the end user.
![eMolecules Medchem Express / Biotin-PEG3-aldehyde / 5mg / 783660478 / HY-136051 / / 889443-90-7 / [null] / 550.670 / C26H38N4O7S](https://assets.fishersci.com/TFS-Assets/CCG/product-images/502467496.JPG-250.jpg)
eMolecules Medchem Express / Biotin-PEG3-aldehyde / 5mg / 783660478 / HY-136051 / / 889443-90-7 / [null] / 550.670 / C26H38N4O7S
Medchem Express / Biotin-PEG3-aldehyde / 5mg / 783660478 / HY-136051 / / 889443-90-7 / [null] / 550.670 / C26H38N4O7S
Medchemexpress LLC 4-arm-PEG-AC (MW 10000) | 95.0% | 10000 | 25 MG
4-Arm-PEG-AC (MW 10000) is a polymer composed of a four-arm PEG core structure with acrylate groups attached to the ends of each PEG chain through a chemical reaction. This product is suitable for drug delivery applications.
- Purity 95.0%
- Molecular weight 10000 (average)
- Solid, white to off-white appearance
- Store powder at -20°C for 3 years
- For research use only
Enzo Life Sciences Caspase-6 (human), (recombinant) (5000 U)
Alternative name: Mch2. Concentration: 100 U/µl. Purity: ≥80% (SDS-PAGE). Formulation: Liquid. In 50mM HEPES, pH 7.4, containing 100mM sodium chloride, 0.5% CHAPS, 1mM EDTA, 10% glycerol and 10mM DTT. Source: Produced in E. coli. Long Term Storage: -80°C.
Medchemexpress LLC Methyl-PEG4-NHS ester | 622405-78-1 | MFCD11041112 | 95.0% | 333.33 g/mol | C14H23NO8 | 500MG
m-PEG4-NHS ester is a methoxy-terminated polyethylene glycol (PEG4) linker bearing an N-hydroxysuccinimide (NHS) ester that enables efficient conjugation to primary amines. It is used as a spacer in bifunctional molecules and for labeling proteins or small molecules in synthesis workflows, offering improved solubility and flexible spacing.
- Reactive NHS ester for rapid coupling to primary amines.
- Methoxy-terminated PEG4 spacer to increase solubility and reduce aggregation.
- Approximately 333.33 g/mol molecular weight for predictable stoichiometry.
- High purity suitable for synthetic and bioconjugation applications.
- Available in multiple laboratory-scale quantities for flexible workflow planning.
Medchemexpress LLC DSPE-PEG-CHO (MW 2000) | 89.0% | 2000 | 25 MG
This product is DSPE-PEG-CHO with an average molecular weight of 2000. It is intended for research use only and has not been fully validated for medical applications.
- White to off-white solid appearance
- Purity of 89.04% by HPLC
- 1H NMR spectrum consistent with its structure
Medchemexpress LLC Dmg-peg-nhs | 95.0% | 2000 (Average) | 25 MG
This compound is composed of Myristic acid and PEG linked by an amide bond, with NHS as an active ester group attached to the end of the PEG chain. It is suitable for various applications including protein/biomolecule modification, gene delivery, and biosensor applications.
- Used for protein/biomolecule modification
- Suitable for gene delivery
- Applicable in biosensor applications
- For research use only
Nanocs Alexa fluor 647 PEG Biotin, 5 mg
Alexa fluor 647 labeled PEG Biotin (AF647 PEG Biotin is a near IR fluorescent PE biotin derivative having excitation/emission wavelength around 651 nm/672 nm. Alexa fluor 647 is a near infrared fluorescent dye with high fluorescent intensity and excellent photo stability. Alexa fluor 647 PEG biotin offered by Nanocs is a water soluble fluorescent biotin PEG that can be used directly in aqueous buffer without need adding toxic organic solvents.
TRIBIOSCIENCE INC DTT Solution (1M), DNase / RNase Free, 50 ML
Tribioscience’s Dithiothreitol (DTT) is used in proteomics applications to maintain sulfhydryl (-SH) groups in the reduced state and for quantitative reduction of disulfide (-S-S-) groups. By reducing the disulfide bonds in a protein sample, the protein can be more effectively fragmented and analyzed. The concentration is 1M.
eMolecules N-Boc-PEG3-bromide | Broadpharm | 1076199-21-7 | MFCD09840081 | 356.257 | C13H26BrNO5 | 97.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCBr | 500mg | 249969242
N-Boc-PEG3-bromide | Broadpharm | 1076199-21-7 | MFCD09840081 | 356.257 | C13H26BrNO5 | 97.000 | CC(C)(C)OC(=O)NCCOCCOCCOCCBr | 500mg | 249969242