Trimethyl borate
ALDRICH/447218 - 99.999% (trace metal basis)
Synonym: Boric acid trimethyl ester; Methyl borate
CAS Number: 121-43-7
Empirical Formula (Hill Notation): C3H9BO3
Molecular Weight: 103.91
EC Number: 204-468-9
MDL Number: MFCD00008346
Linear Formula: B(OCH3)3
Product Type: Chemical
25 mL Sure/Seal™ Packaging
| assay | 99.999% (trace metal basis) |
| bp | 68-69 °C (lit.) |
| density | 0.932 g/mL at 20 °C (lit.) |
| InChI | 1S/C3H9BO3/c1-5-4(6-2)7-3 |
| InChI key | WRECIMRULFAWHA-UHFFFAOYSA |
| mp | −34 °C (lit.) |
| Quality Level | 100  |
| refractive index | n |
| SMILES string | COB(OC)OC |
| vapor density | 3.59 (vs air) |
| Legal Information: | Sure/Seal is a trademark of Sigma-Aldrich Co. LLC |
| Packaging: | 4×25, 100 mL in Sure/Seal™ |
| Packaging: | The 25 mL Sure/Seal™ bottle is recommended as a single-use bottle. Repeated punctures will likely result in decreased performance of product. |
| Symbol |    GHS02,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H225 - H301 + H311 + H331 - H319 - H360FD - H370 |
| Precautionary statements | P210 - P280 - P301 + P310 - P303 + P361 + P353 - P304 + P340 + P311 - P305 + P351 + P338 |
| Hazard Codes | T |
| Risk Statements | 60-61-11-21-36 |
| Safety Statements | 53-23-25-26-45 |
| RIDADR | UN 2416 3 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | 12.2 °F - (own results) |
| Flash Point(C) | -11 °C - (own results) |
| Purity | 99.999% (trace metal basis) |
| bp | 68-69 °C (lit.) |
| mp | −34 °C (lit.) |
| Density | 0.932 g/mL at 20 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 12352103 |