Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Sourcing N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid?
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Hydroxyethylpiperazine ethane sulfonic acid
research compound
Sourcing N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid?
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N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid (TES) is a zwitterionic buffer substance commonly used in biological and biochemical research. It has a pKa of 7.
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
The international HS code for N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid (CAS 7365-44-8) is 2922.19.
2922.19
2922 19 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
2-[[1,3-dihydroxy-2-(hydroxymethyl)propan-2-yl]amino]ethanesulfonic acid
JOCBASBOOFNAJA-UHFFFAOYSA-N
C(CS(=O)(=O)O)NC(CO)(CO)CO