Protein Modification Reagents
AG Scientific Inc Dithiothreitol, DTT, 25 G
Dithiothreitol (DTT), is a small-molecule redox reagent, known as Cleland's reagent, that forms a six-member ring with an internal disulfide bond. It has a redox potential of -0.33 V at pH 7. The reduction of typical disulfide bond proceeds by two sequential thiol-disulfide exchange reactions.DTT is effective in buffers to reduce protein disulfide bonds prior to SDS-PAGE. It can protect protein sulfhydryls and restore enzyme activity lost by oxidation.CAS Number: 3483-12-3Molecular Weight: 154.2Chemical Formula: C4H10O2S2Solubility: 10% solution in water. Clear and colorlessStorage Temperature: 2-8CResearch or further manufacturing use only, not for food or drug use.
Medchemexpress LLC Nε-(carboxyethyl)lysine-d4 | MFCD30364298 | 98.0% | 222.27 g/mol | C9H14D4N2O4 | 1 MG
Nε-(Carboxyethyl)lysine-d4 is a deuterium-labeled (d4) isotopic analogue of Nε-(carboxyethyl)lysine used as an internal standard for quantitative mass spectrometry and tracer studies. Supplied in small milligram quantities for analytical calibration, it supports accurate measurement of advanced glycation endproducts; consult the certificate of analysis for lot-specific purity, storage, and handling.
- Deuterium-labeled (d4) isotopic internal standard for mass spectrometry.
- Supplied in small, ready-to-use quantities suitable for trace analysis.
- Facilitates accurate quantitation of advanced glycation endproducts (AGEs).
- Compatible with common sample preparation and LC-MS workflows.
- Chemical formula C9H14D4N2O4 and molecular weight ~222.27 g/mol.
- Refer to the certificate of analysis for purity and storage details.
Medchemexpress LLC Collagenase/neutral protease 2 (animal free) | 10 MG
An animal-free enzymatic mixture of collagenase and neutral protease for tissue dissociation and primary cell isolation. Supplied as a light yellow to brown solid for research use; store refrigerated at 4°C. Comes with quality and safety documentation for reproducible cell dissociation protocols.
- Animal-free collagenase and neutral protease mixture for tissue dissociation.
- Formulated for primary cell and stem cell isolation.
- Solid formulation, suitable for reconstitution in buffer for protocols.
- Stable when stored at 4°C; shelf life indicated as 2 years on COA.
- Includes COA and SDS documentation to support batch-level quality control.
Sigma Aldrich Fine Chemicals Biosciences Collagenase from Clostridium histolyticum for general use, Type I, 0.25-1.0 FALGPA units/mg solid, ≥125 CDU/mg solid | 9001-12-1 | MFCD00130830 | 5g
Collagenase from Clostridium histolyticum for general use, Type I, 0.25-1.0 FALGPA units/mg solid, ≥125 CDU/mg solidPurity: MW: | 9001-12-1 | MFCD00130830 | 5g
Sigma Aldrich Fine Chemicals Biosciences Collagenase from Clostridium histolyticum | 9001-12-1 | MFCD00130830 | 5g
Collagenase from Clostridium histolyticum | 9001-12-1 | MFCD00130830 | 5g