239782

CAPS

ULTROL^® Grade, ≥99% (HPLC), zwitterionic buffer useful in pH range 7.9-11.1

• Synonym(s): CAPS, ULTROL^® Grade, 3-(Cyclohexylamino)propanesulfonic Acid
• Empirical Formula (Hill Notation): C₉H₁₉NO₃S
• CAS Number: 1135-40-6
• Molecular Weight: 221.32
• UNSPSC Code: 12161703
• NACRES: NA.25
• MDL number: MFCD00003837

Properties

• description: Merck USA index - 14, 1767
• Quality Level: 200
• assay: ≥99% (HPLC)
• form: solid
• manufacturer/tradename: Calbiochem^®
• storage condition: OK to freeze
• color: white
• pKa (25 °C): 10.0-10.6
• solubility: water: 20 mg/mL
• cation traces: heavy metals: ≤1 ppm
• shipped in: ambient
• storage temp.: 15-25°C
• SMILES string: [S](=O)(=O)([O-])CCC[N+H2]C1CCCCC1
• InChI: 1S/C9H19NO3S/c11-14(12,13)8-4-7-10-9-5-2-1-3-6-9/h9-10H,1-8H2,(H,11,12,13)
• InChI key: PJWWRFATQTVXHA-UHFFFAOYSA-N

Description

General description

A zwitterionic buffer that is useful in the pH 7.9-11.1 range. Has a pK_a of 10.0-10.6 at 25°C.

Absorbance (100 mM, 260 nm):≤0.05.

Biological buffer (absorbance: <0.05 at 260 nm, 100 mM; pK_a: 10.0-10.6 at 25°C).

Preparation Note

Following reconstitution, store at room temperature (20°C). Stock solutions are stable for up to 6 months at room temperature.

Legal Information

CALBIOCHEM is a registered trademark of Merck KGaA, Darmstadt, Germany

ULTROL is a registered trademark of Merck KGaA, Darmstadt, Germany

Disclaimer

Toxicity: Standard Handling (A)

Safety Information

• Storage Class: 11 - Combustible Solids
• wgk: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable