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Mal-amido-PEG1-C2-NHS ester 1260092-50-9

Mal-amido-PEG1-C2-NHS ester 1260092-50-9

CAS No.: 1260092-50-9

Mal-amido-PEG1-C2-NHS ester is a non-cleavable (non-degradable) ADC linker containing maleimide groups and NHS ester. NH
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This product is for research use only, not for human use. We do not sell to patients.

Mal-amido-PEG1-C2-NHS ester is a non-cleavable (non-degradable) ADC linker containing maleimide groups and NHS ester. NHS ester may be utilized to label proteins, amine-modified oligonucleotides, and other amine-containing molecules with primary amines (-NH2).

Physicochemical Properties


Molecular Formula C16H19N3O8
Molecular Weight 381.3374
Exact Mass 381.117
CAS # 1260092-50-9
PubChem CID 59257610
Appearance White to off-white solid powder
LogP -2.5
Hydrogen Bond Donor Count 1
Hydrogen Bond Acceptor Count 8
Rotatable Bond Count 11
Heavy Atom Count 27
Complexity 653
Defined Atom Stereocenter Count 0
InChi Key QXGYXAOYQWRQRZ-UHFFFAOYSA-N
InChi Code

InChI=1S/C16H19N3O8/c20-11(5-8-18-12(21)1-2-13(18)22)17-7-10-26-9-6-16(25)27-19-14(23)3-4-15(19)24/h1-2H,3-10H2,(H,17,20)
Chemical Name

(2,5-dioxopyrrolidin-1-yl) 3-[2-[3-(2,5-dioxopyrrol-1-yl)propanoylamino]ethoxy]propanoate
HS Tariff Code 2934.99.9001
Storage

Powder-20°C 3 years

4°C 2 years

In solvent -80°C 6 months

-20°C 1 month

Note: (1). This product requires protection from light (avoid light exposure) during transportation and storage.(2). Please store this product in a sealed and protected environment (e.g. under nitrogen), avoid exposure to moisture.
Shipping Condition Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)

Biological Activity


References [1]. Hansen AM, et al. Microwave-assisted solid-phase synthesis of antisense acpP peptide nucleic acid-peptide conjugates active against colistin- and tigecycline-resistant E. coli and K. pneumoniae. Eur J Med Chem. 2019 Apr 15;168:134-145.
[2]. Zhang ge, et al. Preparation and application of FAPalpha activated polypeptide magnetic nanosphere compound used for diagnosis of tumors. CN105524141A

Solubility Data


Solubility (In Vitro) DMSO : 100 mg/mL (262.23 mM)
Solubility (In Vivo) Solubility in Formulation 1: ≥ 2.5 mg/mL (6.56 mM) (saturation unknown) in 10% DMSO + 40% PEG300 + 5% Tween80 + 45% Saline (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 400 μL PEG300 and mix evenly; then add 50 μL Tween-80 to the above solution and mix evenly; then add 450 μL normal saline to adjust the volume to 1 mL.
Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH₂ O to obtain a clear solution.

Solubility in Formulation 2: ≥ 2.5 mg/mL (6.56 mM) (saturation unknown) in 10% DMSO + 90% (20% SBE-β-CD in Saline) (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of 20% SBE-β-CD physiological saline solution and mix evenly.
Preparation of 20% SBE-β-CD in Saline (4°C,1 week): Dissolve 2 g SBE-β-CD in 10 mL saline to obtain a clear solution.

Solubility in Formulation 3: ≥ 2.5 mg/mL (6.56 mM) (saturation unknown) in 10% DMSO + 90% Corn Oil (add these co-solvents sequentially from left to right, and one by one), clear solution.
For example, if 1 mL of working solution is to be prepared, you can add 100 μL of 25.0 mg/mL clear DMSO stock solution to 900 μL of corn oil and mix evenly.

 (Please use freshly prepared in vivo formulations for optimal results.)
Preparing Stock Solutions 1 mg 5 mg 10 mg
1 mM 2.6223 mL 13.1117 mL 26.2233 mL
5 mM 0.5245 mL 2.6223 mL 5.2447 mL
10 mM 0.2622 mL 1.3112 mL 2.6223 mL
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.