TES

Product Name

TES, BioUltra, ≥99.5% (calc. based on dry substance, T)

InChI key

JOCBASBOOFNAJA-UHFFFAOYSA-N

InChI

1S/C6H15NO6S/c8-3-6(4-9,5-10)7-1-2-14(11,12)13/h7-10H,1-5H2,(H,11,12,13)

SMILES string

OCC(CO)(CO)NCCS(O)(=O)=O

product line

BioUltra

assay

≥99.5% (calc. based on dry substance, T)

form

powder

impurities

insoluble matter, passes filter test

ign. residue

≤0.1% (as SO₄)

loss

≤0.5% loss on drying, 110 °C

pH

3.5-5.0 (25 °C, 1 M in H₂O)

useful pH range

6.8-8.2

pKa (25 °C)

7.5

mp

~225 °C (dec.)

solubility

H₂O: 1 M at 20 °C, clear, colorless

anion traces

chloride (Cl^-): ≤500 mg/kg
sulfate (SO₄^2-): ≤50 mg/kg

cation traces

Al: ≤5 mg/kg
As: ≤0.1 mg/kg
Ba: ≤5 mg/kg
Bi: ≤5 mg/kg
Ca: ≤10 mg/kg
Cd: ≤5 mg/kg
Co: ≤5 mg/kg
Cr: ≤5 mg/kg
Cu: ≤5 mg/kg
Fe: ≤5 mg/kg
K: ≤200 mg/kg
Li: ≤5 mg/kg
Mg: ≤5 mg/kg
Mn: ≤5 mg/kg
Mo: ≤5 mg/kg
Na: ≤100 mg/kg
Ni: ≤5 mg/kg
Pb: ≤5 mg/kg
Sr: ≤5 mg/kg
Zn: ≤5 mg/kg

λ

1 M in H₂O

UV absorption

λ: 260 nm A_max: 0.055
λ: 280 nm A_max: 0.045