H3B-120
Based on 1 publication(s) in Google Scholar
H3B-120 is a highly selective, competitive and allosteric carbamoyl phosphate synthetase 1 (CPS1) inhibitor with an IC50 of 1.5 μM and a Ki of 1.4 μM. H3B-120 has anti-cancer activity.
For research use only. We do not sell to patients.
- Purity: 98.36%
- CAS No.: 2194903-42-7
- Formula: C19H24N4O2S
- Molecular Weight:372.48
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Storage:Powder -20°C, 3 years , 4°C, 2 years ; In solvent -80°C, 2 years , -20°C, 1 year
To place orders, for customer services and technical support, please contact: MedChemExpress USA
Tel: 609-228-6898 E-mail: [email protected] [email protected]
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Biological Activity
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Chemical Information
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Solvent & Solubility
- Purity & Documentation
- References
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Publications Citing Use of MedChemExpress (MCE) H3B-120
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Biological Activity
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CPS I |
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Cell Line
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Type | Value | Description | References |
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| Sf21 | IC50 |
1.5 μM
Compound: 1; H3B-120
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Allosteric inhibition of His-tagged CPS1 (unknown origin) expressed in baculovirus infected Sf21 insect cells assessed as reduction in ADP level preincubated for 20 mins followed by ATP addition measured after 60 mins by ADP-Glo assay
Allosteric inhibition of His-tagged CPS1 (unknown origin) expressed in baculovirus infected Sf21 insect cells assessed as reduction in ADP level preincubated for 20 mins followed by ATP addition measured after 60 mins by ADP-Glo assay
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[PMID: 32551016] |
H3B-120 has no inhibition of CPS2 activity of CAD (CPS2, aspartyl transcarbamylase, dihydroorotase)[1].
H3B-120 achieves inhibition by binding to an allosteric pocket situated between the integrating and ATP A domains[1].
H3B-120 (25, 50, 75, 100 μM) inhibits urea production in a dose-dependent manner, although the cellular potency decreases significantly compared with enzymatic assays[1].
The half-life of H3B-120 is only 40 min[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
Chemical Information
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CAS No. 2194903-42-7
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Appearance Solid
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Molecular Weight 372.48
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Formula C19H24N4O2S
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Color Off-white to yellow
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SMILES
O=C(N1CCC(C(NC2=NC(C)=CS2)=O)CC1)N(C)CC3=CC=CC=C3
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
Powder -20°C 3 years 4°C 2 years In solvent -80°C 2 years -20°C 1 year
Publications (1)
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Journal Impact Factor
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Most Recent
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Int J Biol Macromol
CircSETD2 impairs hepatic lipid homeostasis in metabolic dysfunction-associated fatty liver disease by binding CPS1. [Abstract]2025 Nov 10;333(Pt 2):148879. PMID: 41224057
H3B-120 purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Nov 10;333(Pt 2):148879. [Abstract]
After treatment with 50 mM H3B-120 for 16 hours, lipid accumulation in FFA-treated circSETD2 silenced cells was assessed.
H3B-120 purchased from MedChemExpress. Usage Cited in: Int J Biol Macromol. 2025 Nov 10;333(Pt 2):148879. [Abstract]
H3B-120 inhibits urea nitrogen production in a dose-dependent manner, with an inhibition rate of approximately 50% at a concentration of 50 μM, which is considered the half-maximal inhibitory concentration.
Solvent & Solubility
DMSO : 62.5 mg/mL (167.79 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
Concentration (start) × Volume (start) = Concentration (final) × Volume (final)
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.
Add each solvent one by one: 10% DMSO 40% PEG300 5% Tween-80 45% Saline
Solubility: ≥ 2.08 mg/mL (5.58 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 2.08 mg/mL (5.58 mM); Clear solution
This protocol yields a clear solution of ≥ 2.08 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (20.8 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.
Please enter the basic information of animal experiments:
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Recommended: Prepare an additional quantity of animals to account for potential losses during experiments.
Please enter your animal formula composition:
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%DMSO +
Recommended: Keep the proportion of DMSO in working solution below 2% if your animal is weak.
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%+
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+%Tween-80 + +
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%Saline +
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).
Working solution concentration: 0.22 mg/mL
Method for preparing stock solution: mg drug dissolved in μL DMSO. Stock solution concentration: mg/mL.
1. Take μL DMSO stock solution;
2. Add μL .
μL , mix evenly;
3. Then add μL Tween 80, mix evenly;
4. Then add μL
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
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Data Sheet (270 KB)
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SDS (393 KB)
- English - EN (393 KB)
- Français - FR (393 KB)
- Deutsch - DE (393 KB)
- Norwegian - NO (393 KB)
- Español - ES (393 KB)
- Swedish - SV (393 KB)
- Italian - IT (393 KB)
- Korean - KR (393 KB)
- Portuguese - PT (393 KB)
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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, 2 years; -20°C, 1 year. When stored at -80°C, please use it within 2 years. When stored at -20°C, please use it within 1 year.
| Optional Solvent | Concentration Solvent Mass | 1 mg | 5 mg | 10 mg | 25 mg |
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| DMSO | 1 mM | 2.6847 mL | 13.4235 mL | 26.8471 mL | 67.1177 mL |
| 5 mM | 0.5369 mL | 2.6847 mL | 5.3694 mL | 13.4235 mL | |
| 10 mM | 0.2685 mL | 1.3424 mL | 2.6847 mL | 6.7118 mL | |
| 15 mM | 0.1790 mL | 0.8949 mL | 1.7898 mL | 4.4745 mL | |
| 20 mM | 0.1342 mL | 0.6712 mL | 1.3424 mL | 3.3559 mL | |
| 25 mM | 0.1074 mL | 0.5369 mL | 1.0739 mL | 2.6847 mL | |
| 30 mM | 0.0895 mL | 0.4475 mL | 0.8949 mL | 2.2373 mL | |
| 40 mM | 0.0671 mL | 0.3356 mL | 0.6712 mL | 1.6779 mL | |
| 50 mM | 0.0537 mL | 0.2685 mL | 0.5369 mL | 1.3424 mL | |
| 60 mM | 0.0447 mL | 0.2237 mL | 0.4475 mL | 1.1186 mL | |
| 80 mM | 0.0336 mL | 0.1678 mL | 0.3356 mL | 0.8390 mL | |
| 100 mM | 0.0268 mL | 0.1342 mL | 0.2685 mL | 0.6712 mL |
H3B-120 Related Classifications
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