GRADE & PURITYMoligand™?Moligand™ — Aladdin's line of ligands and bioactive small molecules. Use for receptor, pathway, and binding studies needing defined small-molecule tools.
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Application Protocols
No tested applications are provided for this item. The following are general, non-item-specific protocols for handling small-molecule screening compounds.
DMSO stock preparation (general)
Weigh compound quickly in a dry environment. Prepare a 10 or 20 mM stock in anhydrous DMSO. Warm gently (37–40 C) and sonicate briefly if needed. Filter through 0.2 µm PTFE if particulates persist. Record exact concentration and lot/aliquot IDs.
Plate setup for biochemical assays
Dispense compound using acoustic or pin tools to achieve desired final concentrations with ≤0.5–1% DMSO. Include vehicle controls and appropriate positive/negative controls. Mix thoroughly and equilibrate to minimize edge effects.
Cell-based assay dosing
Pre-screen for cytotoxicity of vehicle. Add compound to media to reach target concentration while keeping final DMSO low (often ≤0.1–0.5% v/v). Monitor for precipitation/turbidity.
Interference checks
Run fluorescence/absorbance scans of the compound alone in assay buffer to detect intrinsic signal. Include detergent sensitivity tests (e.g., 0.01% nonionic surfactant) to flag aggregation artifacts.
Item-specific recommended dilutions, detection methods, or positive controls: Not specified for this item; refer to CoA/Spec Sheet.
Biological Roles
Item-specific biological targets, pathways, or mechanisms are not provided for TKB245. The following guidance is general for small-molecule screening ligands and must not be interpreted as claims about this item’s activity.
Unknown target profile
No target specificity, binding data, or pathway annotations are provided. Treat as a research chemical of unknown biological effect.
Use in discovery workflows (general)
Suitable as a test article in phenotypic or target-based screens. Establish acceptable vehicle concentration (e.g., ≤0.5–1% DMSO) and include vehicle controls and positive/negative reference controls.
Assess potential assay interference (fluorescence, redox cycling, aggregation). Employ counter-screens such as detergent sensitivity tests (e.g., 0.01% nonionic surfactant) and light-absorbance/fluorescence scans to detect optical interference.
ADME/tox considerations (general)
Without structure, in silico predictions cannot be made. If biological follow-up is planned, determine basic properties (solubility in media, stability in buffer/serum, nonspecific binding to plastics/protein) experimentally.
Research Use Note
For research use only. Not for human or veterinary use. Do not use for diagnostic procedures.
Buffer Applications
This product is not a buffering reagent. No pKa or buffer capacity information is provided, and buffers are not typically formulated from unknown small-molecule library members.
Practical guidance (general)
When preparing assay buffers that will receive DMSO stocks of small molecules, validate buffer compatibility with the expected vehicle percentage (e.g., ≤1% DMSO). Include osmolarity and pH checks after adding vehicle.
If precipitation occurs upon dilution, consider adding a small amount of nonionic surfactant (0.01–0.05%) or adjusting ionic strength, provided this does not interfere with the assay.
Item-specific buffer recipes or pH ranges: Not applicable to this product.
Green Alternatives
Green chemistry considerations primarily relate to solvent and process choices during handling and assay setup since the compound structure is not provided.
Greener solvent strategy (general guidance)
Prefer water-based assay buffers with minimal organic cosolvent (≤0.5–1% DMSO) when performance allows.
If organic stock solvents are necessary, DMSO is commonly favored over DMF/NMP due to lower volatility and often better EHS profile. Ethanol or isopropanol can be considered when solubility permits.
Comparison (general, not item-specific):
DMSO vs DMF/NMP
EHS: DMSO generally preferable; DMF/NMP present greater reproductive toxicity concerns.
Performance: All are strong solvents; DMSO typically adequate for 10–50 mM stocks.
Ethanol/isopropanol vs MeCN
Renewability: Alcohols can be bio-based; MeCN typically petro-derived.
Evaporation control: MeCN is more volatile; may cause edge effects in plates.
Operational tips
Use micro-aliquots to minimize freeze–thaw and waste.
Employ sealed plates/tubes to reduce evaporative losses and VOC emissions.
Document waste segregation for halogenated vs non-halogenated streams even though volumes are small in screening contexts.
Pharmaceutical Uses
No pharmacopeial status, excipient role, or formulation use is provided for this product. It is not supplied as a GMP material and is not intended for clinical or diagnostic use.
Status
Research-use-only screening compound (Moligand grade). Not manufactured under GMP; no USP/EP/JP monograph applicability is indicated.
Formulation context (general discovery workflows)
If used in preclinical research, stocks are typically prepared in DMSO and diluted into in vitro assay media. Any in vivo or clinical formulation considerations are out of scope for this research-use-only material.
Regulatory note
Not for human or veterinary administration. No claims are made regarding safety, efficacy, or therapeutic utility.
Item-specific pharmacopeial or excipient information: Not specified for this item; refer to CoA/Spec Sheet.
Physical Properties
Item-specific physicochemical properties are not provided in the listing. Do not treat the following as specifications; consult the CoA/Spec Sheet for authoritative values.
Appearance: Not specified for this item; refer to CoA/Spec Sheet.
Molecular weight: Not specified for this item; refer to CoA/Spec Sheet.
Molecular formula: Not specified for this item; refer to CoA/Spec Sheet.
Melting point: Not specified for this item; refer to CoA/Spec Sheet. (literature/computed values unavailable without structure)
Boiling point: Not specified for this item; refer to CoA/Spec Sheet.
Density: Not specified for this item; refer to CoA/Spec Sheet.
Refractive index: Not applicable/unknown for solids; Not specified for this item; refer to CoA/Spec Sheet.
Aqueous solubility: Not specified for this item; refer to CoA/Spec Sheet.
Organic solvent solubility: Not specified for this item; refer to CoA/Spec Sheet. (General note: many screening compounds dissolve in DMSO at 10–50 mM; confirm experimentally.)
LogP/logD, pKa: Not specified for this item; refer to CoA/Spec Sheet.
UV–Vis/fluorescence: Not specified for this item; refer to CoA/Spec Sheet.
Practical note (general): For unknown solids, begin with DMSO solubilization (e.g., 10 mM trial), optionally warming to 37–40 C and brief sonication. If insoluble, try co-solvents (DMF, ethanol), or formulate as cosolvent/water mixtures with wetting agents (0.01–0.05% nonionic surfactant). Validate concentration by UV or quantitative NMR if chromophores/protons permit.
Quality and Grades
Grade/Purity designation: Moligand™
This designation indicates the material is intended for small-molecule screening, ligand discovery, and SAR studies. It typically emphasizes identity confirmation and suitability for assay use rather than compliance with pharmacopeial monographs.
Item-specific purity metrics (e.g., HPLC purity, residual solvents, water content, counterions/salt form) are Not specified for this item; refer to CoA/Spec Sheet.
What Moligand™ implies (general guidance)
Identity is normally supported by LC–MS and/or 1H NMR. Assay-ready solubility and stability may be assessed, but users should confirm in their own assay matrices.
UV background and fluorescence properties are not standardized; evaluate assay interference (e.g., autofluorescence, Pan-Assay Interference Compounds risk) in method development.
Stabilizers/inhibitors
None stated. If stabilizers are present, they will be disclosed on the CoA/label. For sensitive chemotypes (e.g., aldehydes, acid chlorides), stabilizers may be used; confirm for your lot.
Batch documentation
CoA should be consulted for lot-specific test results, analytical methods, and storage guidance. Retain CoA with your batch records for audit traceability.
Suitability notes
Not manufactured to GMP. Not suitable for human administration or clinical diagnostics. Designed for discovery research workflows and library screening.
Reaction and Applications
This product is supplied as a Moligand-grade small-molecule intended for screening and ligand discovery, not primarily as a synthetic reagent. Consequently, classical synthetic “reaction applications” (e.g., as a coupling partner, catalyst, or stoichiometric reagent) are not typically applicable.
Discovery applications (general)
Use in biochemical/biophysical primary screens (enzyme assays, binding assays), cell-based phenotypic screens, or target profiling workflows as appropriate for your program. Verify assay compatibility (vehicle tolerance, compound interference, redox activity) during method development.
For hit validation, consider orthogonal readouts (e.g., switch from fluorescence to mass-based detection) to rule out assay artifacts.
Analytical considerations
Confirm identity and concentration of working stocks by LC–MS or quantitative NMR where feasible. Monitor stability in assay buffer over the assay window (e.g., via LC–UV peak area or MS signal).
Notable non-applicability
Without structural information, recommendations for named reactions, catalysts, or specific transformation conditions would be speculative and are therefore not provided. If you intend to use TKB245 as a building block or reagent, obtain full structural data and stability information first.
Reaction Conditions
Not applicable. TKB245 is supplied as a Moligand-grade screening compound rather than a reagent or catalyst, and no structure or reactivity profile is provided.
General note for researchers considering chemical modification (only after structure is known):
Establish the identity and purity by LC–MS/NMR.
Run small-scale scouting reactions to probe stability under common conditions (e.g., base-mediated coupling, hydrogenation, mild oxidation) only if functional groups support such transformations.
Monitor reactions by LC–MS and/or HPLC; confirm product identity by NMR.
Item-specific reaction temperatures, solvents, catalysts, or yields: Not specified for this item; refer to CoA/Spec Sheet (when available).
Safety and Handling
Safety data provided in the listing are incomplete. Always consult the product SDS for your lot before use and implement institutional controls.
GHS classification/pictograms: Not specified for this item; refer to SDS.
Signal word, H-statements: Not specified for this item; refer to SDS.
Anticipated hazards (general for small-molecule research chemicals)
May cause irritation to skin, eyes, or respiratory tract.
Unknown acute/chronic toxicity; handle as a substance of unknown hazard.
Personal protective equipment
Minimum: lab coat, safety glasses, nitrile gloves. Use chemically resistant gloves if strong solvents are used (verify permeation data).
Use a certified fume hood to avoid inhalation of dusts/vapors/aerosols.
Handling practices
Avoid dust generation; use antistatic measures when weighing.
Open vials carefully; reseal promptly to limit moisture/air exposure.
Segregate from strong oxidizers and strong acids/bases unless stability data indicate compatibility.
First aid (general guidance; defer to SDS)
Inhalation: move to fresh air; seek medical attention if symptoms persist.
Skin/eye contact: rinse with water for at least 15 minutes; remove contaminated clothing; seek medical advice.
Ingestion: rinse mouth; do not induce vomiting; seek medical attention.
Spills/waste
Absorb with inert material; avoid environmental release. Dispose via licensed chemical waste contractor per local regulations.
Research Use Note: For research use only. Not for human or veterinary use.
Solvent Selection
Because the exact structure is not provided, select solvents based on empirical solubility screening typical for discovery compounds. The following guidance is general and not item-specific.
Primary stock solvent
DMSO is the default for small-molecule libraries. Trial concentrations: 10–50 mM, with gentle warming (37–40 C) and brief sonication. Filter if particulates persist (PTFE, 0.2 µm).
Co-solvents (if DMSO solubility is poor)
DMF, NMP, ethanol, isopropanol, or acetonitrile can improve solubility. For biological assays, keep final organic percentage low (≤1% v/v when feasible) to avoid assay artifacts.
Aqueous use
Prepare intermediate DMSO stocks and dilute into buffer with vigorous mixing. Use surfactants (e.g., 0.01–0.05% Tween-20 or Pluronic F-68) to mitigate precipitation if compatible with the assay.
pH adjustment
If functional groups permit (unknown here), modest pH shifts can aid solubility of ionizable compounds. Titrate cautiously; avoid extreme pH unless stability is verified.
Comparative considerations (general)
DMSO: maximal solvating power; high boiling point; compatible with most screens at ≤0.5–1% v/v.
DMF/NMP: strong solvents but greater toxicity/absorption risk—limit exposure and validate assay tolerance.
Alcohols/MeCN: volatile, easier removal; may affect enzyme kinetics or cell membranes at >0.5%.
Practical tips
Record exact solvent composition and final vehicle percentage for reproducibility.
Run vehicle-only controls and solubility checks (visual inspection, light scattering, nephelometry).
Storage and Reconstitution
Storage conditions (as provided)
Room temperature.
Shipped in: Not specified for this item; refer to CoA/Spec Sheet.
Appearance: Not specified for this item; refer to CoA/Spec Sheet.
General best practices (non-binding guidance; does not supersede item-specific instructions):
Solid material
Store tightly sealed, protected from moisture and direct light. Use desiccant and inert atmosphere (e.g., argon) if the compound is known/suspected to be hygroscopic or air-sensitive.
Minimize headspace and repeated vial openings to reduce hydrolysis/oxidation risk.
Preparing stocks
Reconstitute in anhydrous DMSO to a convenient concentration (e.g., 10–50 mM), confirming complete dissolution. Label with concentration, solvent, date, and lot.
Filter if necessary (0.2 µm PTFE) to remove particulates.
Aliquoting and working stocks
Prepare single-use aliquots to avoid repeated freeze–thaw. For routine screening workflows, DMSO aliquots are commonly stored at −20 C to −80 C (general practice), while the unopened solid can remain at room temperature per product data. Validate stability for your application.
Stability
Item-specific stability, hygroscopicity, and light sensitivity: Not specified for this item; refer to CoA/Spec Sheet.
Research Use Note: For research use only.
Structure and Identity
Brief overview: TKB245 (SKU T614485) is listed as a small-molecule library member (Moligand grade). Detailed structural identifiers are not provided in the product data and should be confirmed against the CoA/SDS.
Product identifiers
SKU: T614485
Product name: TKB245
CAS: T614485 (catalog placeholder; not a standard CAS RN)
PubChem CID: 166475687 (as provided)
InChIKey: 359579 (as provided; format appears atypical)
SMILES: Not specified for this item; refer to CoA/Spec Sheet.
Composition
Molecular formula: Not specified for this item; refer to CoA/Spec Sheet.
Molecular weight: Not specified for this item; refer to CoA/Spec Sheet.
Structural features (general note)
Specific ring systems, heteroatoms, stereochemistry, and functional groups are not provided in the listing. Without a valid SMILES/InChI, 2D/3D features cannot be summarized for this item.
Library context (general information)
As a Moligand-grade small-molecule, TKB245 is intended for screening, target deconvolution workflows, and SAR exploration in discovery research (research use only). Item-specific identity and purity should be verified via the included documentation for your lot (NMR, LC–MS, HPLC purity traces as available).
Synthetic Utility
Synthetic utility cannot be described without structural information (functional groups, substitution pattern, and stereochemistry are not provided). Therefore, using TKB245 as a building block or reagent is not recommended until full structural data are obtained from the CoA/SDS.
If structural data become available, consider the following general evaluation steps before synthetic deployment:
Functional group assessment: Identify reactive handles (e.g., halides, boronates, amines, carboxylates) for cross-coupling or derivatization.
Stability screening: Test sensitivity to acid/base, oxidants/reductants, heat, light, and moisture.
Protecting-group strategy: Determine whether orthogonal protection is needed for multistep sequences.
Purification feasibility: Assess chromatographic behavior (TLC/Rf, HPLC retention), crystallinity, and potential for salt formation.
Until then, the product should be treated as an assay ligand rather than a synthetic intermediate.
Target Specificity
No target, enzyme, receptor, or pathway specificity is provided for TKB245 in the product data.
Antigen/epitope/clone/isotype: Not applicable (small molecule, not an antibody or biological reagent).
Species reactivity: Not applicable.
Any claims of specificity would be speculative without supporting data. Consult your internal screening results or literature associated with the PubChem CID (if available) for target annotations.
Need help choosing the grade?
Our grade selection guide covers purity, stabilizer status, and application suitability for all variants in our catalog.
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