1. Antibody-drug Conjugate/ADC Related
  2. ADC Linker
  3. Cyclooctyne-O-NHS ester

Cyclooctyne-O-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs). Cyclooctyne-O-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

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Cyclooctyne-O-NHS ester

Cyclooctyne-O-NHS ester 構造式

CAS 番号 : 1425803-45-7

容量 価格(税別) 在庫状況 数量
5 mg $80 在庫あり
10 mg $127 在庫あり
25 mg $254 在庫あり
50 mg $407 在庫あり
100 mg $650 在庫あり
500 mg $1625 在庫あり
1 g $2600 お問い合わせ
5 g   お問い合わせ  
10 g   お問い合わせ  

* アイテムを追加する前、数量をご選択ください

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製品説明

Cyclooctyne-O-NHS ester is a cleavable ADC linker used in the synthesis of antibody-drug conjugates (ADCs)[1]. Cyclooctyne-O-NHS ester is a click chemistry reagent, it contains an Alkyne group and can undergo copper-catalyzed azide-alkyne cycloaddition (CuAAc) with molecules containing Azide groups.

IC50 & Target[1]

Cleavable Linker

 

体外実験

ADCs are comprised of an antibody to which is attached an ADC cytotoxin through an ADC linker.

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

分子量

279.29

分子式

C14H17NO5

CAS 番号
Appearance

Solid

Color

White to off-white

SMILES

O=C(ON1C(CCC1=O)=O)COC2C#CCCCCC2

輸送条件

Room temperature in continental US; may vary elsewhere.

保管条件

-20°C, stored under nitrogen

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

溶剤 & 溶解度
体外: 

DMSO : 100 mg/mL (358.05 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 3.5805 mL 17.9025 mL 35.8051 mL
5 mM 0.7161 mL 3.5805 mL 7.1610 mL
10 mM 0.3581 mL 1.7903 mL 3.5805 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

  • Molarity Calculator

  • Dilution Calculator

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

一般には略語で表示されます:C1V1 = C2V2

濃度 (開始)

C1

×
体積 (開始)

V1

=
濃度 (終了)

C2

×
体積 (終了)

V2

体内:

Select the appropriate dissolution method based on your experimental animal and administration route.

For the following dissolution methods, please ensure to first prepare a clear stock solution using an In Vitro approach and then sequentially add co-solvents:
To ensure reliable experimental results, the clarified stock solution can be appropriately stored based on storage conditions. As for the working solution for in vivo experiments, it is recommended to prepare freshly and use it on the same day.
The percentages shown for the solvents indicate their volumetric ratio in the final prepared solution. If precipitation or phase separation occurs during preparation, heat and/or sonication can be used to aid dissolution.

  • Protocol 1

    Add each solvent one by one:  10% DMSO    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 6.25 mg/mL (22.38 mM); Clear solution

    This protocol yields a clear solution of ≥ 6.25 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (62.5 mg/mL) to 400 μL PEG300, and mix evenly; then add 50 μL Tween-80 and mix evenly; then add 450 μL Saline to adjust the volume to 1 mL.

    Preparation of Saline: Dissolve 0.9 g sodium chloride in ddH₂O and dilute to 100 mL to obtain a clear Saline solution.
  • Protocol 2

    Add each solvent one by one:  10% DMSO    90% (20% SBE-β-CD in Saline)

    Solubility: ≥ 5 mg/mL (17.90 mM); Clear solution

    This protocol yields a clear solution of ≥ 5 mg/mL (saturation unknown).

    Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (50.0 mg/mL) to 900 μL 20% SBE-β-CD in Saline, and mix evenly.

    Preparation of 20% SBE-β-CD in Saline (4°C, storage for one week): 2 g SBE-β-CD powder is dissolved in 10 mL Saline, completely dissolve until clear.
In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

g

Dosing volume
(per animal)

μL

Number of animals

Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
%
DMSO +
+
%
Tween-80 +
%
Saline
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
The co-solvents required include: DMSO, . All of co-solvents are available by MedChemExpress (MCE). , Tween 80. All of co-solvents are available by MedChemExpress (MCE).
Calculation results:
Working solution concentration: mg/mL
Method for preparing stock solution: mg drug dissolved in μL  DMSO (Stock solution concentration: mg/mL).

*In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

The concentration of the stock solution you require exceeds the measured solubility. The following solution is for reference only. If necessary, please contact MedChemExpress (MCE).
Method for preparing in vivo working solution for animal experiments: Take μL DMSO stock solution, add μL . μL , mix evenly, next add μL Tween 80, mix evenly, then add μL Saline.
 If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Please ensure that the stock solution in the first step is dissolved to a clear state, and add co-solvents in sequence. You can use ultrasonic heating (ultrasonic cleaner, recommended frequency 20-40 kHz), vortexing, etc. to assist dissolution.
純度とドキュメンテーション

純度: 95.0%

参考文献

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month (stored under nitrogen). When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 3.5805 mL 17.9025 mL 35.8051 mL 89.5127 mL
5 mM 0.7161 mL 3.5805 mL 7.1610 mL 17.9025 mL
10 mM 0.3581 mL 1.7903 mL 3.5805 mL 8.9513 mL
15 mM 0.2387 mL 1.1935 mL 2.3870 mL 5.9675 mL
20 mM 0.1790 mL 0.8951 mL 1.7903 mL 4.4756 mL
25 mM 0.1432 mL 0.7161 mL 1.4322 mL 3.5805 mL
30 mM 0.1194 mL 0.5968 mL 1.1935 mL 2.9838 mL
40 mM 0.0895 mL 0.4476 mL 0.8951 mL 2.2378 mL
50 mM 0.0716 mL 0.3581 mL 0.7161 mL 1.7903 mL
60 mM 0.0597 mL 0.2984 mL 0.5968 mL 1.4919 mL
80 mM 0.0448 mL 0.2238 mL 0.4476 mL 1.1189 mL
100 mM 0.0358 mL 0.1790 mL 0.3581 mL 0.8951 mL
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  • Molarity Calculator

  • Dilution Calculator

The molarity calculator equation

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

質量   濃度   体積   分子量 *
= × ×

The dilution calculator equation

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

一般には略語で表示されます:C1V1 = C2V2

濃度 (開始) × 体積 (開始) = 濃度 (終了) × 体積 (終了)
× = ×
C1   V1   C2   V2
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Inquiry Information

製品名:
Cyclooctyne-O-NHS ester
製品番号:
HY-126517
数量:
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