KL001
Based on 2 publication(s) in Google Scholar
KL001 is a first-in-class cryptochrome (CRY, a flavoproteins that are sensitive to blue light, and is involved in the circadian rhythms of plants and animals) stabilizer which specifically interacts with CRY1 and CRY2. KL001 prevents ubiquitin-dependent degradation of CRY, resulting in lengthening of the circadian period. KL001 has the potential to control fasting hormone-induced gluconeogenesis.
For research use only. We do not sell to patients.
- Purity: 99.06%
- CAS No.: 309928-48-1
- Formula: C21H22N2O4S
- Molecular Weight:398.48
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Storage:
-20°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
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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Help & FAQs
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Publications Citing Use of MedChemExpress (MCE) KL001
More
Biological Activity
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CRY2 |
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Cell Line
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Type | Value | Description | References |
|---|---|---|---|---|
| U2OS | EC50 |
0.87 μM
Compound: KL001
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Reduction of amplitude effect of PER2 in human U2OS cells harboring Per2-dLuc luciferase reporter gene assessed as effects on circadian rhythms
Reduction of amplitude effect of PER2 in human U2OS cells harboring Per2-dLuc luciferase reporter gene assessed as effects on circadian rhythms
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[PMID: 26778255] |
KL001 (0.03-71 μM) causes circadian period lengthening and amplitude reduction in a dose-dependent manner in stable U2OS reporter cell lines harboring Bmal1-dLuc or Per2-dLuc[1].
KL001 (2-8 μM; 18 h) represses glucagon-dependent induction of Pck1 and G6pc genes in a dose-dependent manner without affecting their basal expression in mouse primary hepatocytes[1].
MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.
| NCT Number | Sponsor | Condition | Start Date |
Phase
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|---|---|---|---|---|
| NCT01329991 | Plexxikon| | 2011-05 | PHASE1 |
Chemical Information
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CAS No. 309928-48-1
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Appearance Solid
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Molecular Weight 398.48
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Formula C21H22N2O4S
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Color White to off-white
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SMILES
CS(=O)(N(CC(O)CN1C2=C(C3=C1C=CC=C3)C=CC=C2)CC4=CC=CO4)=O
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Shipping
Room temperature in continental US; may vary elsewhere.
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Storage
-20°C, stored under nitrogen
* In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
Publications (2)
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Journal Impact Factor
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Most Recent
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Int Immunopharmacol
Cryptochrome 2 stabilization alleviates psoriasis by inhibiting keratinocyte hyperproliferation and inflammation. [Abstract]2026 Jan 1;168(Pt 1):115766. PMID: 41242269 -
bioRxiv
2025 May 7:2025.04.28.650846. PMID: 40654759
Solvent & Solubility
DMSO : 5 mg/mL (12.55 mM; ultrasonic and warming and heat to 60°C; 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, 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.
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.
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: ≥ 1.25 mg/mL (3.14 mM); Clear solution
This protocol yields a clear solution of ≥ 1.25 mg/mL (saturation unknown).
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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.
Add each solvent one by one: 10% DMSO 90% (20% SBE-β-CD in Saline)
Solubility: ≥ 1.25 mg/mL (3.14 mM); Suspended solution
This protocol yields a suspended solution of ≥ 1.25 mg/mL (saturation unknown). Suspended solution can be used for oral and intraperitoneal injection.
Taking 1 mL working solution as an example, add 100 μL DMSO stock solution (12.5 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. * In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)
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 (280 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
[1]. Hirota T, et, al. Identification of small molecule activators of cryptochrome. Science. 2012 Aug 31;337(6098):1094-7. [Content Brief]
[2]. Kelleher FC, et, al. Circadian molecular clocks and cancer. Cancer Lett. 2014 Jan 1;342(1):9-18. [Content Brief]
[3]. Nangle S, et, al. Crystal structure of mammalian cryptochrome in complex with a small molecule competitor of its ubiquitin ligase. Cell Res. 2013 Dec;23(12):1417-9. [Content Brief]
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 | 2.5095 mL | 12.5476 mL | 25.0951 mL | 62.7378 mL |
| 5 mM | 0.5019 mL | 2.5095 mL | 5.0190 mL | 12.5476 mL | |
| 10 mM | 0.2510 mL | 1.2548 mL | 2.5095 mL | 6.2738 mL |
KL001 Related Classifications
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