2. Epigenetics
  3. Epigenetic Reader Domain
  4. NI-42

NI-42 (compound 13-d), a structurally orthogonal chemical probe for the BRPFs, is a biased, potent inhibitor of the BRD of the BRPFs (IC50s of BRPF1/2/3=7.9/48/260 nM; Kds of BRPF1/2/3=40/210/940 nM) with excellent selectivity over nonclass IV BRD proteins.

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

NI-42 Chemical Structure

NI-42 Chemical Structure

CAS No. : 1884640-99-6

Size Price Stock Quantity
Solid + Solvent (Highly Recommended)
10 mM * 1 mL in DMSO
ready for reconstitution
 USD 88 In-stock
Solution
10 mM * 1 mL in DMSO USD 88 In-stock
Solid
1 mg USD 32 In-stock
5 mg USD 80 In-stock
10 mg USD 130 In-stock
25 mg USD 260 In-stock
50 mg USD 400 In-stock
100 mg USD 630 In-stock
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Based on 1 publication(s) in Google Scholar

NI-42 Related Antibodies

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  • Biological Activity

  • Purity & Documentation

  • References

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Description

NI-42 (compound 13-d), a structurally orthogonal chemical probe for the BRPFs, is a biased, potent inhibitor of the BRD of the BRPFs (IC50s of BRPF1/2/3=7.9/48/260 nM; Kds of BRPF1/2/3=40/210/940 nM) with excellent selectivity over nonclass IV BRD proteins[1].

IC50 & Target[1]

BRPF1

7.9 nM (IC50)

BRPF2

48 nM (IC50)

BRPF3

260 nM (IC50)

BRPF1

40 nM (Kd)

BRPF2

210 nM (Kd)

BRPF3

940 nM (Kd)

BRD4 (BD1)

4500 nM (IC50)

BRD7

82 nM (IC50)

BRD9

310 nM (IC50)

BRD9

1130 nM (Kd)

In Vitro

NI-42 shows IC50s of 82, 310, and 4500 nM for BRD7, BRD9, and BRD4 (BD1), respectively, and has a Kd of 1130 nM for BRD9[1].

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

NI-42 Related Antibodies
Molecular Weight

353.40

Formula

C18H15N3O3S
CAS No.
Appearance

Solid

Color

Off-white to Pale purple

SMILES

O=S(C1=CC=C(C#N)C=C1)(NC2=CC=C(N(C)C(C(C)=C3)=O)C3=C2)=O
Shipping

Room temperature in continental US; may vary elsewhere.
Storage
Powder -20°C 3 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 100 mg/mL (282.97 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 2.8297 mL 14.1483 mL 28.2965 mL
5 mM 0.5659 mL 2.8297 mL 5.6593 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)

Mass
=
Concentration
×
Volume
×
Molecular Weight *

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

This equation is commonly abbreviated as: C1V1 = C2V2

Concentration (start)

C1

×
Volume (start)

V1

=
Concentration (final)

C2

×
Volume (final)

V2

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    40% PEG300    5% Tween-80    45% Saline

    Solubility: ≥ 2.5 mg/mL (7.07 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 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: 2.5 mg/mL (7.07 mM); Suspended solution; Need ultrasonic

    This protocol yields a suspended solution of 2.5 mg/mL. Suspended solution can be used for oral and intraperitoneal injection.

    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.
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).
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: 99.53%

COA (248 KB) HNMR (259 KB) LCMS (93 KB)

Handling Instructions (2659 KB)
References

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.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 2.8297 mL 14.1483 mL 28.2965 mL 70.7414 mL
5 mM 0.5659 mL 2.8297 mL 5.6593 mL 14.1483 mL
10 mM 0.2830 mL 1.4148 mL 2.8297 mL 7.0741 mL
15 mM 0.1886 mL 0.9432 mL 1.8864 mL 4.7161 mL
20 mM 0.1415 mL 0.7074 mL 1.4148 mL 3.5371 mL
25 mM 0.1132 mL 0.5659 mL 1.1319 mL 2.8297 mL
30 mM 0.0943 mL 0.4716 mL 0.9432 mL 2.3580 mL
40 mM 0.0707 mL 0.3537 mL 0.7074 mL 1.7685 mL
50 mM 0.0566 mL 0.2830 mL 0.5659 mL 1.4148 mL
60 mM 0.0472 mL 0.2358 mL 0.4716 mL 1.1790 mL
80 mM 0.0354 mL 0.1769 mL 0.3537 mL 0.8843 mL
100 mM 0.0283 mL 0.1415 mL 0.2830 mL 0.7074 mL
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NI-42 Related Classifications

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.

Keywords:

NI-421884640-99-6NI42NI 42Epigenetic Reader DomainInhibitorinhibitorinhibit

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