TES

• Catalog No.: T6541
• CAS Number: 7365-44-8
• M. F.: C6H15NO6S
• M. W.: 229.2514
• Purity: ≥99.5% (titration)

SYNONYMS

• Title: Tris 乙磺酸
• IUPAC name: 2-{[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino}ethane-1-sulfonic acid
• IUPAC Traditional name: tes (buffer)
• Synonyms: TES 游离酸; N-[Tris(hydroxymethyl)methyl]-2-aminoethanesulfonic acid; 2-[(2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]ethanesulfonic acid; TES free acid; 2-[[三(羟甲基)甲基]氨基]乙磺酸; N-三(羟甲基)甲基-2-氨基乙烷磺酸

DATABASE IDS

• CAS Number: 7365-44-8
• Beilstein Number: 1957061
• MDL Number: MFCD00007532
• EC Number: 230-906-3
• PubChem SID: 24900386

PROPERTIES

• abs.: A1M/260, H2O ≤0.055
• abs.: A1M/280, H2O ≤0.045
• Antion Traces: chloride (Cl-): ≤0.005%
• Antion Traces: sulfate (SO42-): ≤0.005%
• Cation Traces: Al: ≤0.0005%
• Cation Traces: As: ≤0.0001%
• Cation Traces: Ba: ≤0.0005%
• Cation Traces: Bi: ≤0.0005%
• Cation Traces: Ca: ≤0.001%
• Cation Traces: Cd: ≤0.0005%
• Cation Traces: Co: ≤0.0005%
• Cation Traces: Cr: ≤0.0005%
• Cation Traces: Cu: ≤0.0005%
• Cation Traces: Fe: ≤0.0005%
• Cation Traces: K: ≤0.02%
• Cation Traces: Li: ≤0.0005%
• Cation Traces: Mg: ≤0.0005%
• Cation Traces: Mn: ≤0.0005%
• Cation Traces: Mo: ≤0.0005%
• Cation Traces: Na: ≤0.01%
• Cation Traces: Ni: ≤0.0005%
• Cation Traces: Pb: ≤0.0005%
• Cation Traces: Sr: ≤0.0005%
• Cation Traces: Zn: ≤0.0005%
• Empirical Formula (Hill Notation): C6H15NO6S
• Ignition Residue: ≤0.1% (as SO4) (900°C)
• Impurities: Insoluble matter, passes filter test
• Loss on Drying: ≤1% loss on drying, 110°C
• Product Line: BioXtra
• Purity: ≥99.5% (titration)
• Useful pH Range: 6.8 - 8.2
• pKa: 7.5 (25°C)
• Melting Point: ~225 °C (dec.)
• pH: 3.5-5.0 (20 °C, 1 M in H2O)
• Solubility: H2O: soluble1 M at 20 °C, clear, colorless
• Personal Protective Equipment: Eyeshields, Gloves, type N95 (US), type P1 (EN143) respirator filter
• German water hazard class: 1