Cucurbit[5]uril

Basic Information

Product NameCucurbit[5]uril

CAS Registry Number259886-49-2

FormulaC₃₀H₃₀N₂₀O₁₀·10H₂O

Molecular Weight1010 g/mol

Purity≥98%

StorageSealed, light-proof, store at room temperature in dry conditions

Specifications & Pricing

Specifications	Price	Stock Status
500mg	$280	In Stock
1g	$420	In Stock
5g	$1,400	In Stock
10g	$2,800	In Stock

Product Description

Solubility: Highly soluble in water (25-30 mg/mL). Also soluble in acids. Chemical properties: Forms complexes with metal ions. Appearance: Colorless or white powder, purity ≥95%

Applications

Molecular RecognitionGas AdsorptionHost-Guest Chemistry

Add to Inquiry Contact to Buy

Technical notes on CB[5]

CB[5] is the smallest member of the series (cavity ≈82 Å³, portal ≈2.4 Å) and accepts only very small guests, offering the highest size selectivity. It is used for adsorption and storage of small-molecule gases, recognition of metal ions and small amines, and as a rigid building block in complex supramolecular architectures. Due to dense intermolecular hydrogen-bond packing, CB[5] has low water solubility: prepare a stock solution in formic acid or DMSO before diluting into the target system, or consider the methylated series for concentrated aqueous applications.

Storage, Solubility, and Handling Guidelines

Store sealed, dry, and protected from light at room temperature. For long-term storage, keep at 2–8 °C under dry conditions.
Cucurbituril powders are slightly hygroscopic. Reseal immediately after use and record the batch number and opening date.
Solubility tips: CB[7] and the modified series dissolve directly in water. For CB[6], first dissolve in formic acid or DMSO, then dilute into the target solvent system.
Filter stock host solutions and use them fresh; for binding experiments, record buffer composition, ionic strength, and pH.
These materials are for research use only and must not be used in humans, food, pharmaceutical manufacturing, or clinical diagnostics.
Batch-specific purity, water content, and spectral data are available upon request prior to ordering.