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Molecule record

Tris(Hydroxymethyl)aminomethane

C4H11NO3

121.14 g/mol

2D structure for Tris(Hydroxymethyl)aminomethane

Molecular properties

Formula
C4H11NO3
Molar mass
121.14 g·mol−1
Exact mass
121.0739 Da
0
4
4
86.70 Ų
-2.9 (PubChem computed XLogP3-AA descriptor)
CAS
77-86-1
PubChem CID
6503

Interactions

Polarity
Often polar; exact polarity depends on size, substitution, and ionization state.
Acid-base behavior
Review ionizable groups and pKa data where available; ChemForge does not infer definitive acid-base state from identity alone.
Intermolecular forces
Assess dispersion, dipole interactions, hydrogen bonding, and ionic character from the functional groups shown.

Functional groups

Alcohol
Amine

Physical properties

PropertyValueConditionsSource
Logp-2.9PubChem computed XLogP3-AA descriptorPubChem(link only)

Common names and synonyms

  • 1,3-Propanediol, 2-amino-2-(hydroxymethyl)-
  • 2-Amino-2-(hydroxymethyl)-1,3-propanediol
  • 77-86-1
  • Addex-tham
  • Aminotrimethylolmethane
  • Aminotris(hydroxymethyl)methane
  • Pehanorm
  • TROMETHAMINE
Show all 22 synonyms
  • Talatrol
  • Tham
  • Trimethylolaminomethane
  • Tris Amino
  • Tris buffer
  • Tris, free base
  • Tris-base
  • Tris-steril
  • Trisamine
  • Trisaminol
  • Trispuffer
  • Trometamol
  • Tromethane
  • Tutofusin tris

Structure identifiers

Canonical SMILES
C(C(CO)(CO)N)O
Isomeric SMILES
C(C(CO)(CO)N)O
InChI
InChI=1S/C4H11NO3/c5-4(1-6,2-7)3-8/h6-8H,1-3,5H2
InChIKey
LENZDBCJOHFCAS-UHFFFAOYSA-N
PubChem CID
6503

Spectroscopy

Tabs appear only for spectra stored with clear provenance.

Open library

IR spectrum

ChemArche Original Educational Content(redistributable)

Simulated FTIR trace

Predicted FTIR / %T

4 cm-1 resolution / deterministic instrument profile

Hover for cursor
4000350030002500200015001000500100500wavenumber (cm−1)transmittance (%)

Peak assignments

3350 cm−1broad O-H (simulated)
2960 cm−1sp3 C-H (simulated)

Simulated NMR

On-demand educational prediction for Tris(Hydroxymethyl)aminomethane; not experimental data.

Simulated EI mass spectrum

On-demand educational fragmentation for Tris(Hydroxymethyl)aminomethane; not experimental data.

Sources

Molecule identity

Retrieved 8/7/2026. Reuse status is summarized by the badge; open the source for full details.

PubChem(link only)

simulated IR

ChemForge original educational simulation.

ChemArche Original Educational Content(redistributable)
Open source record