TES Sodium Salt-- CAS No: 70331-82-7

CAS Registry Number 70331-82-7
Name TES Sodium Salt
Synonyms N-(Tris(hydroxymethyl)methyl)-2-aminoethanesulfonic acid sodium salt
Molecular Formula C6H14NNaO6S
Molecular Weight 251.23
Molecular Structure TES Sodium Salt Structure

Specification

Test T1111, High Purity T1113, Ultra Pure T1115, Ultra BioPure
Appearance White powder White powder White powder
Assay (by titration, on dried basis) ≥ 92.0% ≥ 99.0% ≥ 99.0%
Solubility (1% solution in H2O) Clear, complete and colorless Clear, complete and colorless Clear, complete and colorless
Identification (by IR) Conforms to structure   Conforms to structure
Water (KF) ≤ 7.0% ≤ 7.0% ≤ 7.0%
pH (1% solution in water) 9.5 – 10.1 9.5 – 10.1 9.5 – 10.1
Heavy Metals as Lead ≤ 0.0005% ≤ 0.0001% ≤ 0.0001%
Biological Impurity Testing
Test T1111, High Purity T1113, Ultra Pure T1115, Ultra BioPure
Endotoxin (0.1% solution in H2O) -- -- ≤ 0.10 EU/mL
Bioburden -- -- ≤ 100 CFU/g
Specification Sheet
Specification Sheet TES Disodium Spec TES Disodium Spec TES Disodium Spec

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