Protein Modification Reagents
STA PHARMACEUTICAL US LLC Fmoc-NH-PEG6-CH2CH2COOH | 10 g | CAS 882847-34-9 | MDL MFCD06656474
Fmoc-NH-PEG6-CH2CH2COOH is a Amino Acid reagent (Subcategory: PEG AA) sold by WuXi TIDES. Offered in 10 g. Store at 4 °C. SDS available for reference.
Specifications
- CAS: 882847-34-9
- MDL: MFCD06656474
- InChIKey: HEGZERUHBVYZPH-UHFFFAOYSA-N
- Molecular Weight: 575.655
- Molecular Formula: C30H41NO10
- Purity: ≥95%
- Container Type: 60 mL HDPE
- Pack Size: 10 g
- Net Weight: 10 g
- Gross Weight: 25 g
- Commodity Code: 29242970
- Country Of Origin: China
- IUPAC: 1-(9H-fluoren-9-yl)-3-oxo-2,7,10,13,16,19,22-heptaoxa-4-azapentacosan-25-oic acid
- SMILES: O=C(CCOCCOCCOCCOCCOCCOCCNC(OCC1C2=CC=CC=C2C3=CC=CC=C31)=O)O
Sigma Aldrich Fine Chemicals Biosciences Pepsin from porcine gastri500G
Pepsin from porcine gastri500G
Medchemexpress LLC Mal-PEG36-NHS ester | 95.0% | 1923.18 g/mol | C86H159N3O43 | 5 MG
Mal-PEG36-NHS ester is a polyethylene glycol (PEG)-based bifunctional linker bearing a maleimide and an N-hydroxysuccinimide (NHS) ester. Supplied for research use, it is designed for bioconjugation and PROTAC synthesis, enabling sequential coupling to thiol and amine groups.
- Maleimide and NHS ester functional groups for thiol and amine coupling.
- PEG spacer (36 units) provides flexibility and solubility.
- Molecular weight 1923.18 g/mol.
- Purity 95.0%.
- Soluble in DMSO at 62.5 mg/mL (requires ultrasonic agitation).
- Storage: pure form -20°C; in solvent -80°C (6 months) or -20°C (1 month).
- Intended for research use only.
Sigma Aldrich Fine Chemicals Biosciences Collagenase P from Clostridium histolyticum |
Collagenase P from Clostridium histolyticum |
Worthington Biochemical Corporation Collagenase CLSAFA Animal Free, 5 g
CLSAFA is the original AFA grade designed to have collagenase and secondary proteases similar to Types 1 and 2 collagenase. ≥150 units per mg dry weight.
eMolecules TCO-PEG24-DBCO | Broadpharm |1556.883 | C78H129N3O28 | 92.000 | O=C(CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)OC1CCC\C=C\CC1)NCCC(=O)N1Cc2ccccc2C#Cc2ccccc12 | 10mg | 672542390
TCO-PEG24-DBCO | Broadpharm |1556.883 | C78H129N3O28 | 92.000 | O=C(CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)OC1CCC\C=C\CC1)NCCC(=O)N1Cc2ccccc2C#Cc2ccccc12 | 10mg | 672542390
Medchemexpress LLC Diketone-PEG4-biotin | 2353409-85-3 | 95.0% | C33H50N4O9S | 10MG
Diketone-PEG4-Biotin is a PEG-based PROTAC linker bearing a biotin affinity tag for use in chemical biology and targeted protein degradation research. It provides a flexible, water-soluble spacer to enable conjugation and affinity capture in the synthesis of bifunctional molecules and assay workflows.
- Peg-based linker with biotin for affinity capture.
- Compatible with PROTAC synthesis and bifunctional conjugates.
- Provides a flexible spacer to reduce steric hindrance.
- Facilitates pull-down assays and target engagement studies.
- Supplied with specified purity for research applications.
- Available in small research pack sizes for method development.
![Medchemexpress LLC (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[4-(6-methyl-1,2,4,5-tetrazin-3-yl)phenoxy]ethoxy]ethoxy]ethoxy]... | 1802907-92-1 | MFCD28334559 | 97.0% | C24H31N5O9 | 10MG](https://assets.fishersci.com/TFS-Assets/CCG/product-images/5000258923.png-250.jpg)
Medchemexpress LLC (2,5-dioxopyrrolidin-1-yl) 3-[2-[2-[2-[2-[4-(6-methyl-1,2,4,5-tetrazin-3-yl)phenoxy]ethoxy]ethoxy]ethoxy]... | 1802907-92-1 | MFCD28334559 | 97.0% | C24H31N5O9 | 10MG
Methyltetrazine-PEG5-NHS ester is a PEG5-based linker bearing a methyltetrazine group and an N-hydroxysuccinimide (NHS) ester. It enables rapid bioorthogonal labeling via inverse-electron-demand Diels-Alder reactions with trans-cyclooctene derivatives and provides an activated ester for amine coupling; the PEG5 spacer improves aqueous solubility and spacing in conjugates. Molecular formula C24H31N5O9, MW 533.53 g·mol⁻¹.
- Enables fast bioorthogonal conjugation via inverse-electron-demand Diels-Alder.
- Provides an activated NHS ester for efficient amine coupling.
- Peg5 spacer increases solubility and reduces steric hindrance.
- Suitable for synthesis of linkers, bioconjugates, and PROTACs.
- Supplied at high purity for research applications.