Biotin-PEG12-NHS ester

Name: Biotin-PEG12-NHS ester
Brand: MedChemExpress
SKU: HY-140892
Rating: 4.5 (1 reviews)

Cat. No.: HY-140892 Purity: 99.31%: FAQs
Data Sheet SDS COA Handling Instructions

Molarity Calculator

Biotin-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs.

For research use only. We do not sell to patients.

Biotin-PEG12-NHS ester Chemical Structure

CAS No. : 1934296-88-4

Size	Price	Stock	Quantity
25 mg	USD 200	In-stock	Estimated Time of Arrival: December 31
50 mg		Get quote
100 mg		Get quote

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Based on 1 publication(s) in Google Scholar

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Biological Activity
Purity & Documentation
References
Customer Review

Description

Biotin-PEG12-NHS ester is a PEG-based PROTAC linker that can be used in the synthesis of PROTACs^[1].

IC₅₀ & Target

PEGs

In Vitro

PROTACs contain two different ligands connected by a linker; one is a ligand for an E3 ubiquitin ligase and the other is for the target protein. PROTACs exploit the intracellular ubiquitin-proteasome system to selectively degrade target proteins^[1].

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

Molecular Weight

941.09

Formula

C₄₁H₇₂N₄O₁₈S

CAS No.

1934296-88-4

Appearance

Oil

Color

White to off-white

SMILES

O=C(NCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCOCCC(ON1C(CCC1=O)=O)=O)CCCC[C@@H]2SC[C@]([C@]2([H])N3)([H])NC3=O

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Pure form	-20°C	3 years
In solvent	-80°C	6 months
	-20°C	1 month

Solvent & Solubility

In Vitro:

DMSO : 100 mg/mL (106.26 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	1.0626 mL	5.3130 mL	10.6260 mL
5 mM	0.2125 mL	1.0626 mL	2.1252 mL
10 mM	0.1063 mL	0.5313 mL	1.0626 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. 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)

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

This equation is commonly abbreviated as: C₁V₁ = C₂V₂

Concentration _(start)

Volume _(start)

Concentration _(final)

Volume _(final)

In Vivo:

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 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.5 mg/mL (2.66 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 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.
Protocol 2

Add each solvent one by one: 10% DMSO 90% Corn Oil
Solubility: ≥ 2.5 mg/mL (2.66 mM); Clear solution

This protocol yields a clear solution of ≥ 2.5 mg/mL (saturation unknown). If the continuous dosing period exceeds half a month, please choose this protocol carefully.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (25.0 mg/mL) to 900 μL Corn oil, and mix evenly.

In Vivo Dissolution Calculator

Please enter the basic information of animal experiments:

Dosage

mg/kg

Animal weight
(per animal)

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).

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.

Purity & Documentation

Purity: 99.31%

Select Batch:

Data Sheet (272 KB) SDS (251 KB)

COA (249 KB) HNMR (218 KB) RP-HPLC (148 KB) MS (73 KB)

Handling Instructions (2659 KB)

References

[1]. An S, et al. Small-molecule PROTACs: An emerging and promising approach for the development of targeted therapy drugs. EBioMedicine. 2018 Oct;36:553-562 [Content Brief]

Complete Stock Solution Preparation Table

Optional Solvent	Concentration Solvent Mass	1 mg	5 mg	10 mg	25 mg

DMSO	1 mM	1.0626 mL	5.3130 mL	10.6260 mL	26.5649 mL
	5 mM	0.2125 mL	1.0626 mL	2.1252 mL	5.3130 mL
	10 mM	0.1063 mL	0.5313 mL	1.0626 mL	2.6565 mL
	15 mM	0.0708 mL	0.3542 mL	0.7084 mL	1.7710 mL
	20 mM	0.0531 mL	0.2656 mL	0.5313 mL	1.3282 mL
	25 mM	0.0425 mL	0.2125 mL	0.4250 mL	1.0626 mL
	30 mM	0.0354 mL	0.1771 mL	0.3542 mL	0.8855 mL
	40 mM	0.0266 mL	0.1328 mL	0.2656 mL	0.6641 mL
	50 mM	0.0213 mL	0.1063 mL	0.2125 mL	0.5313 mL
	60 mM	0.0177 mL	0.0885 mL	0.1771 mL	0.4427 mL
	80 mM	0.0133 mL	0.0664 mL	0.1328 mL	0.3321 mL
	100 mM	0.0106 mL	0.0531 mL	0.1063 mL	0.2656 mL