7365-44-8
Product Name:
N-Tris(hydroxymethyl)methyl-2-aminoethanesulfonic Acid
Formula:
C6H15NO6S
Synonyms:
2-[(2-Hydroxy-1,1-bis(hydroxymethyl)ethyl)amino]ethanesulfonic acid;N-[Tris(hydroxymethyl)-methyl]-2-aminoethanesulfonic acid;N-[Tris(hydroxymethyl)methyl]-2-aminoethanesulfonic acid;TES;TES free acid
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CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Solid; [Merck Index] White odorless crystalline powder; [Alfa Aesar MSDS] |
|---|---|
| Chemical Classes | Other Uses -> Biological Buffers |
SAFETY INFORMATION
| Signal word | Warning |
|---|---|
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation |
| Precautionary Statement Codes |
P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P271:Use only outdoors or in a well-ventilated area. P280:Wear protective gloves/protective clothing/eye protection/face protection. P312:Call a POISON CENTER or doctor/physician if you feel unwell. P302+P352:IF ON SKIN: wash with plenty of soap and water. P304+P340:IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P403+P233:Store in a well-ventilated place. Keep container tightly closed. |
COMPUTED DESCRIPTORS
| Molecular Weight | 229.25 g/mol |
|---|---|
| XLogP3 | -5.8 |
| Hydrogen Bond Donor Count | 5 |
| Hydrogen Bond Acceptor Count | 7 |
| Rotatable Bond Count | 7 |
| Exact Mass | 229.06200837 g/mol |
| Monoisotopic Mass | 229.06200837 g/mol |
| Topological Polar Surface Area | 136 Ų |
| Heavy Atom Count | 14 |
| Formal Charge | 0 |
| Complexity | 233 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
N-tris(hydroxymethyl)methyl-2-aminoethanesulfonic acid is a Good's buffer substance, pKa = 7.5 at 20 ℃. It is a member of ethanolamines, an amino sulfonic acid and a TES. It is functionally related to a taurine. It is a tautomer of a N-tris(hydroxymethyl)methyl-2-ammonioethanesulfonate.