Protein Modification Reagents
Broadpharm Azido-PEG5-amine | 516493-93-9 | MFCD16619318 | 1 g
Azido-PEG5-amine | Purity: 98% | Mol Wt: 306.4 | 516493-93-9 | MFCD16619318 | 1 g
Medchemexpress LLC DBCO-PEG6-NHS ester | 95.0% | 737.79 g·mol⁻¹ | C38H47N3O12 | 10 MG
DBCO-PEG6-NHS ester is a bifunctional click-chemistry reagent combining a dibenzocyclooctyne (DBCO) moiety and an N-hydroxysuccinimide (NHS) ester separated by a six-unit polyethylene glycol spacer. It is designed for amine-specific conjugation and copper-free strain-promoted alkyne-azide cycloaddition (SPAAC) with azide-functionalized partners, and is supplied as a light yellow liquid.
- Bifunctional linker with DBCO and NHS ester groups.
- PEG6 spacer improves solubility and reduces steric hindrance.
- Reacts with primary amines for stable covalent attachment.
- Performs copper-free SPAAC with azide groups for bioorthogonal labeling.
- Purity approximately 95% as provided in product documentation.
- Store protected from light and under inert atmosphere; recommended low-temperature storage for long-term stability.
Sigma Aldrich Fine Chemicals Biosciences Collagenase from Clostridium Histolyticum | 9001-12-1 | MFCD00130830 | 5g
Collagenase from Clostridium Histolyticum | 9001-12-1 | MFCD00130830 | 5g
Sigma Aldrich Fine Chemicals Biosciences Collagenase from Clostridium histolyticum release of rat epididymal adipocytes and hepatocytes tested (for methodology see Type II and Type IV), Type VIII, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid | 9001-12-1 | MFCD00130830 | 100mg
Collagenase from Clostridium histolyticum release of rat epididymal adipocytes and hepatocytes tested (for methodology see Type II and Type IV), Type VIII, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solidMW: | 9001-12-1 | MFCD00130830 | 100mg
Sigma Aldrich Fine Chemicals Biosciences Collagenase II United States Pharmacopeia (USP) Reference Standard | 9001-12-1 | MFCD00130830 | 2X0.5ML
Collagenase II United States Pharmacopeia (USP) Reference Standard | 9001-12-1 | MFCD00130830 | 2X0.5ML
![Medchemexpress LLC Propanoic acid, 3-[2-[2-[(4-formylbenzoyl)amino]ethoxy]ethoxy]-, 2,5-dioxo-1-pyrrolidinyl ester | 1807521-07-8 | 98.5% | 406.39 | C19H22N2O8 | 50 MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000202474.png-250.jpg)
Medchemexpress LLC Propanoic acid, 3-[2-[2-[(4-formylbenzoyl)amino]ethoxy]ethoxy]-, 2,5-dioxo-1-pyrrolidinyl ester | 1807521-07-8 | 98.5% | 406.39 | C19H22N2O8 | 50 MG
Ald-Ph-amido-PEG2-C2-NHS ester is a non-cleavable 2-unit PEG linker used for antibody-drug conjugation (ADC). It features an N-hydroxysuccinimide (NHS) ester for amine-reactive coupling and a 4-formylbenzoyl aldehyde handle for further derivatization. Supplied as a colorless to light yellow liquid, the material is validated by 1H NMR and LCMS.
- Non-cleavable 2-unit polyethylene glycol (PEG) linker for ADC chemistry.
- N-hydroxysuccinimide (NHS) ester for amine-reactive conjugation.
- 4-formylbenzoyl aldehyde for further derivatization.
- Molecular formula C19H22N2O8; molecular weight 406.39.
- CAS number 1807521-07-8.
- Purity (LCMS) 98.5%.
- Appearance colorless to light yellow liquid.
- Storage: pure form -20°C up to 3 years; in solvent -80°C for 6 months or -20°C for 1 month.
- Pack size typically supplied as 50 MG.
Medchemexpress LLC Mal-PEG3-C1-NHS ester | 2230016-26-7 | 95.0% | 384.34 | C16H20N2O9 | 5 MG
Mal-PEG3-C1-NHS ester is a non-cleavable three-unit polyethylene glycol (PEG3) linker bearing a maleimide and an N-hydroxysuccinimide (NHS) ester for conjugation to thiol and amine groups in antibody-drug conjugates. Supplied as a solid with typical purity 95.0%, it is provided with supporting documentation for safe handling and characterization.
- Non-cleavable three-unit PEG linker for stable conjugation.
- Contains maleimide and NHS ester functional groups for thiol and amine coupling.
- Molecular weight 384.34 g/mol.
- Purity 95.0%.
- CAS number 2230016-26-7 for chemical identification.
- Available in 5 mg, 10 mg, 25 mg, and 50 mg sizes; supplied for reconstitution in DMSO at indicated concentrations.
Medchemexpress LLC Dbco-peg3-vc-exatecan | 2754384-70-6 | 96.7% | 1331.44 | C71H79FN10O15 | 5 MG
DBCO-PEG3-VC-Exatecan is a research-grade drug-linker conjugate that couples a cleavable DBCO-PEG3-VC linker to the topoisomerase I inhibitor exatecan, supplied as an off-white to light yellow solid for use in antibody-drug conjugate (ADC) research.
- adc drug-linker conjugate for preclinical and conjugation work
- contains exatecan, a DNA topoisomerase I inhibitor
- cleavable DBCO-PEG3-VC linker suitable for bioconjugation
- high reported purity for research applications
- available in small milligram quantities for formulation and testing
Medchemexpress LLC 3,6,9,12,15,18-hexaoxanonadecanoic acid | 16142-03-3 | MFCD30536160 | 99.9% | 310.34 | C13H26O8 | 50 MG
m-PEG5-CH2COOH is a monodisperse PEG linker terminating in a carboxylic acid, designed for use as a non-cleavable linker in antibody-drug conjugates and as a PEG-based linker in PROTAC synthesis.
- Terminal carboxylic acid (-CH2COOH) for straightforward amide coupling to amines.
- PEG5 spacer provides hydrophilicity and flexibility to linker arms.
- High reported purity (99.9%) suitable for research-grade bioconjugation.
- Monodisperse molecular weight 310.34 and formula C13H26O8 for predictable behavior.
- Available in small, research-friendly package sizes such as 50 mg.
Sigma Aldrich Fine Chemicals Biosciences Collagenase from Clostridium histolyticum | 9001-12-1 | MFCD00130830 | 500mg
Collagenase from Clostridium histolyticum | Purity: % | Mol Wt: 68-130 kDa | 9001-12-1 | MFCD00130830 | 500mg
Sigma Aldrich Fine Chemicals Biosciences Collagenase from Clostridium histolyticum release of rat epididymal adipocytes and hepatocytes tested (for methodology see Type II and Type IV), Type VIII, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid | 9001-12-1 | MFCD00130830 | 1g
Collagenase from Clostridium histolyticum release of rat epididymal adipocytes and hepatocytes tested (for methodology see Type II and Type IV), Type VIII, 0.5-5.0 FALGPA units/mg solid, ≥125 CDU/mg solid | 9001-12-1 | MFCD00130830 | 1g
Sigma Aldrich Fine Chemicals Biosciences Collagenase from Clostridium histolyticum | 9001-12-1 | MFCD00130830 | 500 mg
Collagenase from Clostridium histolyticum | 9001-12-1 | MFCD00130830 | 500 mg