Trimethyl borate

C3H9BO3CAS 121-43-7103.91 g/mol

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Properties

Molecular formula
C3H9BO3
Molar mass
103.91 g/mol
Exact mass
104.0645 Da
Density
0.92 g/mL
Melting point
−29.3 °C
Boiling point
67–68 °C
Flash point
26.7 °C (closed cup)
logP
-0.09Crippen estimate
Polar surface area
27.7 Ų
H-bond donors / acceptors
0 / 3
Rotatable bonds
3

Hazards

Danger
Flammable (GHS02)Irritant (GHS07)Health Hazard (GHS08)

Harmonised EU classification (CLP Annex VI, index 005-005-00-1), via PubChem.

Precautionary statements

P203, P210, P233, P240, P241, P242, P243, P280, P302+P352, P303+P361+P353, P317, P318, P321, P362+P364, P370+P378, P403+P235, P405, P501

Identifiers

CAS number
121-43-7
SMILES
COB(OC)OC
InChIKey
WRECIMRULFAWHA-UHFFFAOYSA-N
InChI
InChI=1S/C3H9BO3/c1-5-4(6-2)7-3/h1-3H3

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Names and synonyms

12 names
  • Boric acid (H3BO3), trimethyl ester
  • Methyl borate ((MeO)3B)
  • Borester O
  • Trimethoxyborane
  • Trimethoxyborine
  • Boric acid trimethyl ester
  • Trimethoxyboron
  • Boron trimethoxide
  • TMB
  • NSC 777
  • Trimethylborate
  • TMB-R

Safety data sheets

One stored sheet lists this compound in section 3, matched by the CAS number 121-43-7. Each row opens the sheet with its composition and PDF.

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Work with Trimethyl borate

Predict the NMR spectrum1H and 13C shifts with multiplicities Make a solutionWhat to weigh for any molarity and volume Check drug-likenessLipinski, Veber and lead-likeness Boiling point under vacuumAt any pressure, from its normal boiling point Isotope patternExact mass and the mass spectrum pattern

Similar compounds

Trimethoxyboroxine102-24-967 % similar 2-Methoxy-4,4,5,5-tetramethyl-1,3,2-dioxaborolane1195-66-047 % similar Diethylmethoxyborane7397-46-835 % similar 9-Methoxy-9-borabicyclo(3.3.1)nonane38050-71-430 % similar

Tanimoto similarity of circular fingerprints over the whole catalogue.

All similar compounds

Elsewhere

PubChem CAS Common Chemistry NIST WebBook Wikipedia