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| 50mg |
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| 100mg |
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| 250mg |
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| 1g |
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Purity: ≥98%
Protein degrader 1 TFA (trifluoroacetic acid salt) is a novel and potent small molecule ligand for VHL (Von Hippel-Lindau), an E3 ligase which has been targeted in many PROTACs (proteolysis-targeting chimeras). Small molecule-induced protein degradation is an attractive strategy for the development of chemical probes. One method for inducing targeted protein degradation involves the use of PROTACs, heterobifunctional molecules that can recruit specific E3 ligases to a desired protein of interest. PROTACs have been successfully used to degrade numerous proteins in cells, but the peptidic E3 ligase ligands used in previous PROTACs have hindered their development into more mature chemical probes or therapeutics.
| References |
ACS Chem Biol.2015 Aug 21;10(8):1831-7.
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| Molecular Formula |
C24H31F3N4O5S
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| Molecular Weight |
544.586955308914
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| Exact Mass |
544.196
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| Elemental Analysis |
C, 52.93; H, 5.74; F, 10.47; N, 10.29; O, 14.69; S, 5.89
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| CAS # |
1631137-51-3
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| Related CAS # |
1448297-52-6;1631137-51-3 (TFA);
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| PubChem CID |
133053568
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| Appearance |
Solid powder
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| Hydrogen Bond Donor Count |
4
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| Hydrogen Bond Acceptor Count |
11
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| Rotatable Bond Count |
6
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| Heavy Atom Count |
37
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| Complexity |
701
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| Defined Atom Stereocenter Count |
3
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| SMILES |
CC1=C(SC=N1)C2=CC=C(C=C2)CNC(=O)[C@@H]3C[C@H](CN3C(=O)[C@H](C(C)(C)C)N)O.C(=O)(C(F)(F)F)O
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| InChi Key |
SGNZARGJXDPTDJ-MSSRUXLCSA-N
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| InChi Code |
InChI=1S/C22H30N4O3S.C2HF3O2/c1-13-18(30-12-25-13)15-7-5-14(6-8-15)10-24-20(28)17-9-16(27)11-26(17)21(29)19(23)22(2,3)4;3-2(4,5)1(6)7/h5-8,12,16-17,19,27H,9-11,23H2,1-4H3,(H,24,28);(H,6,7)/t16-,17+,19-;/m1./s1
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| Chemical Name |
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| Synonyms |
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| HS Tariff Code |
2934.99.9001
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| Storage |
Powder -20°C 3 years 4°C 2 years In solvent -80°C 6 months -20°C 1 month |
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| Shipping Condition |
Room temperature (This product is stable at ambient temperature for a few days during ordinary shipping and time spent in Customs)
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| Solubility (In Vitro) |
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| Solubility (In Vivo) |
Note: Listed below are some common formulations that may be used to formulate products with low water solubility (e.g. < 1 mg/mL), you may test these formulations using a minute amount of products to avoid loss of samples.
Injection Formulations
Injection Formulation 1: DMSO : Tween 80： Saline = 10 : 5 : 85 (i.e. 100 μL DMSO stock solution → 50 μL Tween 80 → 850 μL Saline)(e.g. IP/IV/IM/SC) *Preparation of saline: Dissolve 0.9 g of sodium chloride in 100 mL ddH ₂ O to obtain a clear solution. Injection Formulation 2: DMSO : PEG300 ：Tween 80 : Saline = 10 : 40 : 5 : 45 (i.e. 100 μL DMSO → 400 μLPEG300 → 50 μL Tween 80 → 450 μL Saline) Injection Formulation 3: DMSO : Corn oil = 10 : 90 (i.e. 100 μL DMSO → 900 μL Corn oil) Example: Take the Injection Formulation 3 (DMSO : Corn oil = 10 : 90) as an example, if 1 mL of 2.5 mg/mL working solution is to be prepared, you can take 100 μL 25 mg/mL DMSO stock solution and add to 900 μL corn oil, mix well to obtain a clear or suspension solution (2.5 mg/mL, ready for use in animals). View More
Injection Formulation 4: DMSO : 20% SBE-β-CD in saline = 10 : 90 [i.e. 100 μL DMSO → 900 μL (20% SBE-β-CD in saline)] Oral Formulations
Oral Formulation 1: Suspend in 0.5% CMC Na (carboxymethylcellulose sodium) Oral Formulation 2: Suspend in 0.5% Carboxymethyl cellulose Example: Take the Oral Formulation 1 (Suspend in 0.5% CMC Na) as an example, if 100 mL of 2.5 mg/mL working solution is to be prepared, you can first prepare 0.5% CMC Na solution by measuring 0.5 g CMC Na and dissolve it in 100 mL ddH2O to obtain a clear solution; then add 250 mg of the product to 100 mL 0.5% CMC Na solution, to make the suspension solution (2.5 mg/mL, ready for use in animals). View More
Oral Formulation 3: Dissolved in PEG400 (Please use freshly prepared in vivo formulations for optimal results.) |
| Preparing Stock Solutions | 1 mg | 5 mg | 10 mg | |
| 1 mM | 1.8362 mL | 9.1812 mL | 18.3624 mL | |
| 5 mM | 0.3672 mL | 1.8362 mL | 3.6725 mL | |
| 10 mM | 0.1836 mL | 0.9181 mL | 1.8362 mL |
*Note: Please select an appropriate solvent for the preparation of stock solution based on your experiment needs. For most products, DMSO can be used for preparing stock solutions (e.g. 5 mM, 10 mM, or 20 mM concentration); some products with high aqueous solubility may be dissolved in water directly. Solubility information is available at the above Solubility Data section. Once the stock solution is prepared, aliquot it to routine usage volumes and store at -20°C or -80°C. Avoid repeated freeze and thaw cycles.
Calculation results
Working concentration： mg/mL；
Method for preparing DMSO stock solution： mg drug pre-dissolved in μL DMSO (stock solution concentration mg/mL). Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug.
Method for preparing in vivo formulation:：Take μL DMSO stock solution, next add μL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH2O，mix and clarify.
(1) Please be sure that the solution is clear before the addition of next solvent. Dissolution methods like vortex, ultrasound or warming and heat may be used to aid dissolving.
(2) Be sure to add the solvent(s) in order.
Schematic depiction of a bifunctional HaloPROTAC containing chloroalkane (which binds HaloTag7 fusion proteins) and a hydroxyproline derivative which binds VHL.
Synthesis of HaloPROTACs containing Degradation Inducing Moiety A and Degradation Inducing Moiety B.ACS Chem Biol.2015 Aug 21;10(8):1831-7. |
The average fluorescence per cell compared to vehicle control was measured by flow cytometry after 24 hour treatment with the indicated compounds and concentrations.ACS Chem Biol.2015 Aug 21;10(8):1831-7. |
A) A study of linker length with Degradation Inducing Moiety B shows that three ethylene glycol units are optimal for the degradation of GFP-HaloTag7. B) Structures of HaloPROTACs that have weaker affinity for VHL. C) Reducing the affinity for VHL attenuates their ability to induce degradation of GFP-HaloTag7, although the effect is not necessarily linear.ACS Chem Biol.2015 Aug 21;10(8):1831-7. |
A) The enantiomers of HaloPROTACs (containing D-amino acid residues) which do not bind VHL do not induce degradation of GFP-HaloTag7, supporting the necessity of VHL binding for activity. B) Pre-treatment with excessent-HaloPROTAC3 (1 hour) prevents degradation of GFP-HaloTag7 by HaloPROTAC3 after 24 hours. C) Pre-treatment with epoxomicin (4 hours) prevents degradation of GFP-HaloTag7 by HaloPROTAC3 after 20 hours. D)Treatment with VL285 attenuates the ability of HaloPROTAC3 to induce the degradation of GFP-HaloTag7. E) Structure of VL285. All error bars depict SEM.ACS Chem Biol.2015 Aug 21;10(8):1831-7. |
A) Comparison of HaloPROTAC3 (quintuplicate) to Hyt36 (triplicate) shows that HaloPROTAC3 is significantly more potent and efficacious. B) HaloPROTAC3 leads to 50% degradation of GFP-HaloTag7 within 4 to 8 hours. C) Significant recovery from 24 hour treatment with HaloPROTAC3 is observed after a 24 hour washout.ACS Chem Biol.2015 Aug 21;10(8):1831-7. |
Immunoblotting confirms that nearly complete degradation of A) GFP-HaloTag7 is observed after 24 hour treatment with 500 nM HaloPROTAC3, with significant degradation at 50 nM HaloPROTAC3. HaloPROTAC3 can lead to degradation of other HaloTag7 fusion proteins such as B) HaloTag7-ERK1 and HaloTag7-MEK1. As expected, endogenous ERK and MEK are not degraded.ACS Chem Biol.2015 Aug 21;10(8):1831-7. |
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