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Boc-NH-PEG(3)-COOH, also known as t-Boc-N-amido-PEG4-CH2CO2H, is a heterobifunctional PEGylated crosslinker that features a carboxylic acid at one end and a Boc-protected amino group at the other. The hydrophilic PEG linker enhances solubility in biological applications, making it suitable for various chemical biology and medicinal chemistry applications.

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  • 876345-13-0 Structure
  • Basic information

    1. Product Name: Boc-NH-PEG(3)-COOH
    2. Synonyms: Boc-NH-PEG(3)-COOH;Boc-NH-PEG(3)-COOH(16atoMs);Boc-NH-(PEG)4-CH2COOH;t-Boc-N-amido-PEG4-CH2CO2H;2,2-Dimethyl-4-oxo-3,8,11,14,17-pentaoxa-5-azanonadecan-19-oic acid
    3. CAS NO:876345-13-0
    4. Molecular Formula: C14H27NO7
    5. Molecular Weight: 321.36668
    6. EINECS: N/A
    7. Product Categories: N/A
    8. Mol File: 876345-13-0.mol
  • Chemical Properties

    1. Melting Point: N/A
    2. Boiling Point: 493.6±40.0 °C(Predicted)
    3. Flash Point: N/A
    4. Appearance: /
    5. Density: 1.138±0.06 g/cm3(Predicted)
    6. Refractive Index: N/A
    7. Storage Temp.: -20°C
    8. Solubility: N/A
    9. PKA: 3.39±0.10(Predicted)
    10. CAS DataBase Reference: Boc-NH-PEG(3)-COOH(CAS DataBase Reference)
    11. NIST Chemistry Reference: Boc-NH-PEG(3)-COOH(876345-13-0)
    12. EPA Substance Registry System: Boc-NH-PEG(3)-COOH(876345-13-0)
  • Safety Data

    1. Hazard Codes: N/A
    2. Statements: N/A
    3. Safety Statements: N/A
    4. WGK Germany:
    5. RTECS:
    6. HazardClass: N/A
    7. PackingGroup: N/A
    8. Hazardous Substances Data: 876345-13-0(Hazardous Substances Data)

876345-13-0 Usage

Uses

Used in Bioconjugation:
Boc-NH-PEG(3)-COOH is used as a crosslinker for bioconjugation, allowing the formation of stable amide bonds between the terminal carboxylic acid and primary amine groups of biomolecules in the presence of activators such as EDC or HATU.
Used in Chemical Biology and Medicinal Chemistry:
Boc-NH-PEG(3)-COOH is used as a building block for the synthesis of small molecules, conjugates of small molecules and/or biomolecules, or other tool compounds in chemical biology and medicinal chemistry that require ligation.
Used in Targeted Protein Degradation:
Boc-NH-PEG(3)-COOH is used as a component in the synthetic incorporation into antibody-drug conjugates or proteolysis-targeting chimeras (PROTAC) molecules for targeted protein degradation.
Used in Pharmaceutical Industry:
In the pharmaceutical industry, Boc-NH-PEG(3)-COOH is used as a key intermediate for the development of drug delivery systems, improving the solubility and bioavailability of therapeutic agents.
Used in Research Applications:
Boc-NH-PEG(3)-COOH is used as a research tool for the investigation of protein-protein interactions, enzyme activity modulation, and the development of novel therapeutic agents targeting specific biological pathways.

Check Digit Verification of cas no

The CAS Registry Mumber 876345-13-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,6,3,4 and 5 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 876345-13:
(8*8)+(7*7)+(6*6)+(5*3)+(4*4)+(3*5)+(2*1)+(1*3)=200
200 % 10 = 0
So 876345-13-0 is a valid CAS Registry Number.

876345-13-0SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 17, 2017

Revision Date: Aug 17, 2017

1.Identification

1.1 GHS Product identifier

Product name 5,8,11,14-Tetraoxa-2-azahexadecanedioic acid, 1-(1,1-dimethylethyl) ester

1.2 Other means of identification

Product number -
Other names -

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:876345-13-0 SDS

876345-13-0Relevant articles and documents

A biocompatible condensation reaction for the labeling of terminal cysteine residues on proteins

Ren, Hongjun,Xiao, Fei,Zhan, Ke,Kim, Young-Pil,Xie, Hexin,Xia, Zuyong,Rao, Jianghong

, p. 9658 - 9662 (2009)

Going live: A protein-labeling method based on the use of a single amino acid taglan N-terminal cysteine residuel and small-molecule probes containing a cyanobenzothiazole (CBT) unit has been used for the specific fluorescence labeling of proteins in vitro and at the surface of live cells (see scheme). This simople ligation reaction proceeds with a high degree of specificity under physiological conditions. Rd: a rhodamine dye; TEV: Tobacco etch virus.

IRAK DEGRADERS AND USES THEREOF

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Paragraph 00962; 001046; 001049-001050, (2020/06/19)

The present invention provides compounds, compositions thereof, and methods of using the same.

IRAK DEGRADERS AND USES THEREOF

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Paragraph 2580; 2582, (2019/07/10)

The present invention provides compounds, compositions thereof, and methods of using the same.

MDM2-BASED MODULATORS OF PROTEOLYSIS AND ASSOCIATED METHODS OF USE

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Paragraph 0376; 0384, (2017/01/31)

The description relates to MDM2 binding compounds, including bifunctional compounds comprising the same, which find utility as modulators of targeted ubiquitination, especially inhibitors of a variety of polypeptides and other proteins which are degraded and/or otherwise inhibited by bifunctional compounds according to the present invention. In particular, the description provides compounds, which contain on one end a ligand which binds to the MDM2 E3 ubiquitin ligase and on the other end a moiety which binds a target protein such that the target protein is placed in proximity to the ubiquitin ligase to effect degradation (and inhibition) of that protein. Compounds can be synthesized that exhibit a broad range of pharmacological activities consistent with the degradation/inhibition of targeted polypeptides of nearly any type.

Zinc(II)cyclen-peptide conjugates interacting with the weak effector binding state of Ras

Schmidt, Florian,Rosnizeck, Ina C.,Spoerner, Michael,Kalbitzer, Hans Robert,K?nig, Burkhard

experimental part, p. 38 - 48 (2011/03/22)

Zinc(II)cyclen-peptide hybrid compounds and bis-zinc(II)cyclen complexes are prepared as potential binders of the guanine nucleotide binding protein Ras, an important molecular switch in cellular signal transduction. The design of the compounds is based on the previous observation that zinc(II)cyclen complexes could serve as lead compounds for inhibitors of Ras-effector interaction and thus be able to interrupt Ras induced signal transduction. Zinc(II)cyclen selectively stabilizes conformational state 1 of active Ras, a conformational state with drastically decreased affinity to effector proteins like Raf-kinase. To achieve higher binding affinities of such Ras-Raf interaction inhibitors, zinc(II)cyclen conjugates with short peptides, derived from the sequence of the Ras-activator SOS, were prepared by solid phase synthesis protocols. Dinuclear bis-zinc(II)cyclen complexes were obtained from alkyne-azide cycloaddition reactions. NMR investigations of the prepared compounds revealed that the peptide conjugates do not lead to an increase in Ras binding affinity of the metal complex-peptide conjugates. The dinuclear zinc complexes lead to an immediate precipitation of the protein prohibiting spectroscopic investigations of their binding.

BisPNA targeting to DNA: Effect of neutral loop on DNA duplex strand invasion by aepPNA-N7G/aepPNA-C substituted peptide nucleic acids

Shirude, Pravin S.,Kumar, Vaijayanti A.,Ganesh, Krishna N.

, p. 5207 - 5215 (2007/10/03)

N7-Alkyl-substituted guanine (N7G) as a CH+ mimic has been introduced into aminoethylglycyl PNA (aegPNA) forming a hairpin through a neutral linker derived from bis(tetraethylene) glycol (teg-teg). These form pH-independent PNA2:DNA

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