Protein Modification Reagents

BIOCHEMPEG SCIENTIFIC INC AC-PEG-RGD HE009074-3.4K

NC2831890 AC-PEG-RGD HE009074-3.4K

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eMolecules​ Methyltetrazine-PEG24-t-butyl ester | Broadpharm |1373.633 | C64H116N4O27 | 95.000 | Cc1nnc(nn1)-c1ccc(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)OC(C)(C)C)cc1 | 5mg | 393649431

Methyltetrazine-PEG24-t-butyl ester | Broadpharm |1373.633 | C64H116N4O27 | 95.000 | Cc1nnc(nn1)-c1ccc(OCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(=O)OC(C)(C)C)cc1 | 5mg | 393649431

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eMolecules​ DSPE-Amide-PEG-Rhodamine, MW 2,000 | Broadpharm |1376.220 | C75H121ClN4NaO13P | 97.000 | [Na+].[Cl-].CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCCNC(=O)COCCOCCNC(=O)c1ccccc1-c1c2ccc(cc2oc2cc(ccc12)=[N+](CC)CC)N(CC)CC)OC(=O)CCCCCCCCCCCCCCCCC | 5mg | 795361903

DSPE-Amide-PEG-Rhodamine, MW 2,000 | Broadpharm |1376.220 | C75H121ClN4NaO13P | 97.000 | [Na+].[Cl-].CCCCCCCCCCCCCCCCCC(=O)OC[C@H](COP([O-])(=O)OCCNC(=O)COCCOCCNC(=O)c1ccccc1-c1c2ccc(cc2oc2cc(ccc12)=[N+](CC)CC)N(CC)CC)OC(=O)CCCCCCCCCCCCCCCCC | 5mg | 795361903

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Medchemexpress LLC MEDCHEMEXPRESS LLC

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5000745626 CARBOXY-PEG4-PHOSPHO 250MG

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Ambeed AMBEED

5000890724 BIS-PEG4-NHS ESTER 250MG

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eMolecules​ 14-(Amide-PEG4-ethylcarbamoyl)tridecanoic t-butyl ester | Broadpharm |532.763 | C28H56N2O7 | 95.000 | CC(C)(C)OC(=O)CCCCCCCCCCCCC(=O)NCCOCCOCCOCCOCCN | 100mg | 784455750

14-(Amide-PEG4-ethylcarbamoyl)tridecanoic t-butyl ester | Broadpharm |532.763 | C28H56N2O7 | 95.000 | CC(C)(C)OC(=O)CCCCCCCCCCCCC(=O)NCCOCCOCCOCCOCCN | 100mg | 784455750

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eMolecules​ Amino-Tri-(Azide-PEG10-ethoxymethyl)-methane HCl Salt | Broadpharm |1863.164 | C79H155N13O36 | 90.000 | NC(COCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])(COCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])COCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 500mg | 603...

Amino-Tri-(Azide-PEG10-ethoxymethyl)-methane HCl Salt | Broadpharm |1863.164 | C79H155N13O36 | 90.000 | NC(COCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])(COCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])COCCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 500mg | 603111845

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eMolecules​ N-(Amino-PEG10)-N-bis(PEG10-azide) | Broadpharm |1519.824 | C66H134N8O30 | 98.000 | NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN(CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 500mg | 603111792

N-(Amino-PEG10)-N-bis(PEG10-azide) | Broadpharm |1519.824 | C66H134N8O30 | 98.000 | NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN(CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-])CCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCN=[N+]=[N-] | 500mg | 603111792

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Med Vet International Timolol Maleate (Generic Timoptic) Solution, 0.5%, 15mL

VET LICENSE NEEDS TO BE PROVIDED IN 3-4 BUSINESS DAYS OR ORDER WILL BE CANCELLED

Timolol Maleate is a generic version of Timoptic. Ophthalmic Timolol is in a class of medications called beta-blockers. It is an ophthalmic solutions that is used to decrease pressure in the eye.

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Medchemexpress LLC Methyl-PEG4-NHS ester | 622405-78-1 | MFCD11041112 | 95.0% | 333.33 g/mol | C14H23NO8 | 500MG

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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.

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eMolecules​ 7-O-(Bromoacetamido-PEG4)- paclitaxel | Broadpharm |1222.142 | C60H73BrN2O20 | 95.000 | CC(=O)O[C@@H]1C2=C(C)[C@H](C[C@@](O)([C@@H](OC(=O)c3ccccc3)C3[C@@]4(CO[C@@H]4C[C@H](OC(=O)CCOCCOCCOCCOCCNC(=O)CBr)[C@@]3(C)C1=O)OC(C)=O)C2(C)C)OC(=O)[C@H](O)[C@@H](NC(=O)c1ccccc1)c1ccccc1 | 10mg ...

7-O-(Bromoacetamido-PEG4)- paclitaxel | Broadpharm |1222.142 | C60H73BrN2O20 | 95.000 | CC(=O)O[C@@H]1C2=C(C)[C@H](C[C@@](O)([C@@H](OC(=O)c3ccccc3)C3[C@@]4(CO[C@@H]4C[C@H](OC(=O)CCOCCOCCOCCOCCNC(=O)CBr)[C@@]3(C)C1=O)OC(C)=O)C2(C)C)OC(=O)[C@H](O)[C@@H](NC(=O)c1ccccc1)c1ccccc1 | 10mg | 550804560

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eMolecules​ 2279944-66-8 | N,N-diethanol amine-PEG4-tert-butyl ester | Broadpharm409.520 | C19H39NO8 | 0.000 | CC(C)(C)OC(=O)CCOCCOCCOCCOCCN(CCO)CCO | 1g | 550804567

N,N-diethanol amine-PEG4-tert-butyl ester | Broadpharm | 2279944-66-8409.520 | C19H39NO8 | 0.000 | CC(C)(C)OC(=O)CCOCCOCCOCCOCCN(CCO)CCO | 1g | 550804567

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eMolecules​ Bis-Bromoacetamido-PEG11 | Broadpharm |786.549 | C28H54Br2N2O13 | 0.000 | BrCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)CBr | 250mg | 550804565

Bis-Bromoacetamido-PEG11 | Broadpharm |786.549 | C28H54Br2N2O13 | 0.000 | BrCC(=O)NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCNC(=O)CBr | 250mg | 550804565

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eMolecules​ 2354291-37-3 | Gly-PEG3-endo-BCN | Broadpharm453.580 | C23H39N3O6 | 0.000 | NCC(=O)NCCCOCCOCCOCCCNC(=O)OC[C@@H]1[C@@H]2CCC#CCC[C@H]12 | 100mg | 550804569

Gly-PEG3-endo-BCN | Broadpharm | 2354291-37-3453.580 | C23H39N3O6 | 0.000 | NCC(=O)NCCCOCCOCCOCCCNC(=O)OC[C@@H]1[C@@H]2CCC#CCC[C@H]12 | 100mg | 550804569

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eMolecules​ 2855229-28-4 | Hydroxy-PEG1-acid sodium salt | Broadpharm156.113 | C5H9NaO4 | 0.000 | [Na+].OCCOCCC([O-])=O | 1g | 761707322

Hydroxy-PEG1-acid sodium salt | Broadpharm | 2855229-28-4156.113 | C5H9NaO4 | 0.000 | [Na+].OCCOCCC([O-])=O | 1g | 761707322

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