CHES BIOXTRA >= 99.0% (TITRATION) (C005B-004970)

General description

CHES (2-(Cyclohexylamino) ethane sulfonic acid) is a derivative of amino acid taurine. It serves as a standard physiological buffer in the pH range of 8.5-9.5.

Application

CHES may be used:

• for pH adjustments and as a assay buffer in catechol oxidase activity measurements(32)
• as a buffer in electron paramagnetic resonance (EPR) spectroscopy and kinetic measurements(33)
• as a buffer for soil solution equivalent (SSE) yeast dextrose medium for screening pH optima for growth of Aridibacter nitratireducens A24_SHP-5_238^T(34)

Molecular Weight: 207.29. Empirical Formula: C₈H₁₇NO₃S. product line: BioXtra. Quality Level: 200. Assay: ≥. 99.0% (titration). form: powder. impurities: ≤. 0.0005% Phosphorus (P), ≤. 0.1% Insoluble matter. ign. residue: ≤. 0.1%. pH: 3.0-5.0 (0.5 . M in H₂O). useful pH range: 8.6-10.0. pKa (25 °C): 9.3. solubility: H₂O: 0.5 . M, clear, colorless. anion traces: chloride (Cl^-): ≤. 0.05%, sulfate (SO₄^2-): ≤. 0.05%. cation traces: Al: ≤. 0.0005%, Ca: ≤. 0.001%, Cu: ≤. 0.0005%, Fe: ≤. 0.0005%, K: ≤. 0.005%, Mg: ≤. 0.0005%, NH₄⁺: ≤. 0.05%, Na: ≤. 0.01%, Pb: ≤. 0.001%, Zn: ≤. 0.0005%. absorption: ≤. 0.05 at 280 in H₂O at 0.5 . M, ≤. 0.08 at 260 in H₂O at 0.5 . M. application(s): diagnostic assay manufacturing. SMILES string: OS(: O)(: O)CCNC1CCCCC1. InChI: 1S/C8H17NO3S/c10-13(11,12)7-6-9-8-4-2-1-3-5-8/h8-9H,1-7H2,(H,10,11,12). InChI key: MKWKNSIESPFAQN-UHFFFAOYSA-N. Storage Class Code: 11 - Combustible Solids. WGK: WGK 3. Flash Point(F): Not applicable. Flash Point(C): Not applicable. Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves.