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Catalog	name	Description	price
R-1805-X	4 arm-PEG-SG	4 arm-Polyethylene glycol-succinimidyl glutarate ,4 arm-PEG-SG,SG-PEG-4 arm from ruixi 4-arm Poly(ethylene glycol) succinimidyl glutarate (4-Arm PEG-SG) from ruixibiotech are high quality multi-arm PEG derivatives with succinimidyl ester at each terminal of the four arms that can quickly react with primary amine. The total molecular weight of 4-Arm PEGs is the sum of the molecular weights of all four arms.	price>
R-CO-016	(4E)-TCO-C3-PEG3-C3-amine	Trans cyclooctene (TCO),as an amphiphilic diene,can react with s-tetrazine under physiological conditions.It has the advantages of no catalyst and fast reaction rate,so it is widely used in the research of biology and materials science.Ruixi biological products (4E)-TCO-C3-PEG3-C3-amine.	price>
R-R-0914	Amyloid β-Peptide (10-20) (human)	The Amyloid β-Peptide (10-20) (human)/Tyr-Glu-Val-His-His-Gln-Lys-Leu-Val-Phe-Phe/Cas.152286-31-2, also known as Aβ(10-20), is a peptide fragment derived from the larger Amyloid β-Peptide, which is associated with the development of Alzheimer disease. This specific fragment, Aβ(10-20), has been studied for its potential role in the aggregation and pathological processes related to Alzheimer disease.	price>
R-MU-0011	4arm-PEG-SS	4 arm-Polyethylene glycol-Succinimidyl Succinate,4 arm-PEG-SS,SS-PEG-4 arm from ruixi 4-arm PEG succinimidyl succinate ester (4-arm PEG-SS) is a multiarm PEG derivative with succinimidyl NHS active ester groups at each terminal of the 4 arms connected to onepentaerythritol core. PEG-SS (succinimidyl succinate ester) is one type of PEG-NHS reagents. There is a C2 hydrocarbon ester linkage between PEG and the NHS ester. NHS is a good leaving group which can react with amine-containing moities.	price>
R-CO-017	(4E)-TCO-PEG3-amine	Tco-peg3-amine can bind to antibody,peptide or other molecules simply and effectively through coupling of amide and carboxylic group.Hydrophilic polyethylene glycol(PEG)spacer arm endows the labeled molecules with water solubility,thus reducing the aggregation of labeled proteins stored in solution.The PEG spacer arm provides a long and flexible connection to minimize the space barrier to the folding molecule containing tetrazine.Ruixi biological products (4E)-TCO-PEG3-amine.	price>
R-R-0915	Hemorphin-7	Hemorphin-7/Cas.152685-85-3 is a hemorphin peptide, an endogenous opioid peptide derived from the β-chain of hemoglobin. Hemorphin peptides exhibits antinociceptive and antihypertensive activities, activating opioid receptors and inhibiting angiotensin-converting enzyme (ACE).	price>
R-MU-0012	4arm-PEG-SVA	4 arm-Polyethylene glycol-Succinimidyl Valerate,4 arm-PEG-SVA,SVA-PEG-4 arm from ruixi 4-arm polyethylene glycol- SVA is a multi-arm polyethylene glycol derivative with SVA at each end of the four arms connected to a pentaerythritol nucleus.4 arm-peg2000-SVA,4 arm-peg5000-SVA and so on.	price>
R-CO-018	(4E)-TCO-PEG4-amine	TCO-PEG4-Amine enables simple and efficient incorporation of TCO moiety onto antibodies,peptide or other molecules through amide coupling with carboxylic acid group.The hydrophilic polyethylene glycol(PEG)spacer arm imparts water solubility that is transferred to the labeled molecule,thus reducing aggregation of labeled proteins stored in solution.The PEG spacer arm provides a long and flexible connection that minimizes steric hindrance involved with ligation to plementary tetrazine-containing molecules.	price>
R-R-0916	a-Bungarotoxin	α-Bungarotoxin/CAS.11032-79-4 is a competitive antagonist at nicotinic acetylcholine receptors (nAChRs). α-Bungarotoxin, a selective α7 receptor blocker, blocks α7 currents with an IC50 of 1.6 nM and has no effects on α3β4 currents at concentrations up to 3 μM.	price>
R-MU-0013	4arm-PEG-Epoxides	4 arm-Polyethylene glycol-Epoxides,4 arm-PEG-Epoxides,Epoxides-PEG-4 arm from ruixi 4-Arm PEG-Epoxide is a multiarm PEG derivative with epoxide or epoxy groups at each terminal of the four arms connected to one pentaerythritol core.Polyethylene glycol (PEG) compounds contain a polyether unit, commonly expressed as R1-(O-CH2-CH2)n-O-R2. They are generally biocompatible, non-toxic and stable in both organic and aqueous solutions, and so are extensively used in biological applications, as well as nanotechnology and materials research. Proteins with PEG chain modifications and compounds encapsulated in PEG liposomes exhibit a longer half-life in vivo than their non-PEGylated counterparts, a phenomenon known as PEG shielding. Functionalised PEG lipids and phospholipids can be used for protein-PEG conjugation.	price>
R-CO-019	(4E)-TCO-PEG3-Maleimide	Trans cyclooctene (TCO),as a amphiphilic monomer,has been widely used in biological and material science research due to its advantages of no catalyst and fast reaction rate under physiological conditions.Maleimide forms stable thioether bond with sulfhydryl group.Polyethylene glycol can enhance solubility and stability,reduce the surface nonspecific binding of charged molecules,and reduce the immunogenicity of peptides.We can provide such products(4E)-TCO-PEG3-Maleimide.	price>
R-R-0917	Dansyl-L-alanine cyclohexylammonium salt	Dansyl-L-alanine cyclohexylammonium salt/CAS.53332-27-7 is an alanine derivative.	price>
R-MU-0014	4arm-PEG-VA	4 arm-Polyethylene glycol-Valeric Acids, 4 arm-PEG-VA, VA-PEG- 4 arm from ruixi 4-arm polyethylene glycol- VA is a multi-arm polyethylene glycol derivative with VA at each end of the four arms connected to a pentaerythritol nucleus.4 arm-peg2000-VA,4 arm-peg5000-VA and so on.The valeric acid carboxylate of d-biotin may be activated to an NHS ester for direct modification of amine groups in proteins and other molecules. NHS esters react by nucleophilic attack of an amine on the carbonyl group, releasing the NHS group and forming a stable amide linkage.	price>
R-CO-020	(2E)-TCO-PNB ester	Trans cyclooctene (TCO),as a amphiphilic monomer, has been widely used in biological and material science research due to its advantages of no catalyst and fast reaction rate under physiological conditions.We can provide such products(2E)-TCO-PNB ester.	price>
R-R-0918	Obtustatin triacetate	Obtustatin triacetate is a 41-residue non-RGD disintegrin. Obtustatin triacetate can be isolated from the venom of Vipera lebetina obtusa. Obtustatin triacetate is a potent and selective inhibitor of integrin α1β1 adhesion to type IV collagen. Obtustatin triacetate inhibits angiogenesis and may be used in cancer research.	price>
R-MU-0015	4arm-PEG-Acrylamide	4 arm-Polyethylene glycol-Acrylamide, 4 arm-PEG-Acrylamide，Acrylamide-PEG-4 arm from ruixi 4-Arm PEG-Acrylamide is a multiarm PEG derivative with acrylamide groups at each terminal of the four arms connected to one pentaerythritol core. The 4arm-PEG acrylamide can be used for radical initiator or UV light induced polymerization to synthesize PEG hydrogel. 4-Arm PEG-methacrylamide is provided through our custom synthesis service. 4-Methoxyphenol or MeHQ at ~ 200 ppm is added as inhibitors.	price>
R-AZ-019	PCL-azobenzene-PEG-BIOTIN	Polycaprolactone is a kind of polycaprolactone synthesized by ring opening polymerization of caprolactone with metal organic compounds (such as tetraphenyltin) as catalyst and dihydroxy or trihydroxy as initiator.Polyethylene glycol phospholipid liposomes can be used for drug delivery,gene transfection and vaccine delivery. Azobenzene has CIS(z)-trans (E)-isomers.Biotin is also known as vitamin H,coenzyme R, etc.its main function is to act as a coenzyme in decarboxylation carboxylation and deamination reactions.It can transfer CO2 from one compound to another,thus turning one compound into another.Ruixi can provide such products as polycaprolactone Azobezene polyglycofolic acid.	price>
R-CO-021	(4E)-TCO-PEG4-biotin	Trans cyclooctene (TCO),as a amphiphilic monomer, has been widely used in biological and material science research due to its advantages of no catalyst and fast reaction rate under physiological conditions.We can provide such products(4E)-TCO-PEG4-biotin.	price>
R-R-0919	Disitertide diammonium	Disitertide (P144) diammonium is a peptidic transforming growth factor-beta 1 (TGF-β1) inhibitor specifically designed to block the interaction with its receptor. Disitertide diammonium is also a PI3K inhibitor and an apoptosis inducer.	price>
R-MU-0016	4arm-PEG-Br	4 arm-Polyethylene glycol-Bromide, 4 arm-PEG-Br, Br-PEG-4 arm from ruixi 4-arm polyethylene glycol- Br is a multi-arm polyethylene glycol derivative with Br at each end of the four arms connected to a pentaerythritol nucleus.4 arm-peg2000-Br,4 arm-peg5000-Br and so on.	price>

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