tert-Butyl methyl ether
SIGALD/34875 - suitable for HPLC, ≥99.8%
Synonym: MTBE; Methyl tert-butyl ether
CAS Number: 1634-04-4
Empirical Formula (Hill Notation): C5H12O
Molecular Weight: 88.15
EC Number: 216-653-1
MDL Number: MFCD00008812
Linear Formula: (CH3)3COCH3
Product Type: Chemical
| application(s) | food and beverages |
| assay | ≥99.8% |
| autoignition temp. | 705 °F |
| bp | 55-56 °C (lit.) |
| color | APHA: ≤10 |
| density | 0.74 g/mL at 25 °C (lit.) |
| expl. lim. | 15.1 % |
| form | liquid |
| grade | HPLC grade |
| impurities | ≤0.0005% non-volatile matter |
| ≤0.0005% peroxides (as H2O2) | |
| ≤0.002% free acid (as CH3COOH) | |
| ≤0.01% water (Karl Fischer) | |
| InChI | 1S/C5H12O/c1-5(2,3)6-4/h1 |
| InChI key | BZLVMXJERCGZMT-UHFFFAOYSA |
| mp | -110 °C |
| Quality Level | 100 ![]() |
| refractive index | n |
| SMILES string | COC(C)(C)C |
| technique(s) | HPLC: suitable |
| transmittance | 220 nm, ≥40% |
| 250 nm, ≥80% | |
| 260 nm, ≥90% | |
| 290 nm, ≥99% | |
| UV absorption | λ: 210 nm Amax: ≤1.0 |
| λ: 220 nm Amax: ≤0.40 | |
| λ: 250 nm Amax: ≤0.10 | |
| λ: 260 nm Amax: ≤0.05 | |
| λ: 300 nm Amax: ≤0.005 | |
| λ: 400 nm Amax: ≤0.005 | |
| vapor density | 3.1 (vs air) |
| vapor pressure | 4.05 psi |
| Application: | tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) has been used in the isolation and quantitative determination of carotenes and xanthophylls from Capsicum annum pericarp extracts by HPLC. |
| General description: | tert-Butyl methyl ether (methyl tert-butyl ether, MTBE) is a gasoline additive. Its oxidative degradation by propane-oxidizing bacterial strains has been tested. Kinetic studies of its heat-assisted persulfate oxidation at various pH, temperature, oxidant concentration and ionic strength levels suggests that reaction exhibits a pseudo-first-order decay model. |
| Other Notes: | Important notice • The article number 34875-4X2.5L will be discontinued. Please order the single bottle 34875-2.5L which is physically identical with the same exact specifications. • The article number 34875-6X1L will be discontinued. Please order the single bottle 34875-1L which is physically identical with the same exact specifications. |
| Other Notes: | Discover LiChropur reagents ideal for HPLC or LC-MS analysis |
| Packaging: | 1, 6×1, 2, 4×2, 4, 4×4 L in glass bottle |
| Packaging: | 100 mL in glass bottle |
| Packaging: | 200 L in Pure-Pac™ 1 |
| Packaging: | 200 L in Pure-Pac™ 2 |
| Symbol | ![]() GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225 - H315 |
| Precautionary statements | P210 - P233 - P240 - P241 - P242 - P303 + P361 + P353 |
| Hazard Codes | F,Xi |
| Risk Statements | 11-38 |
| Safety Statements | 9-16-24 |
| RIDADR | UN 2398 3 / PGII |
| WGK Germany | WGK 1 |
| Flash Point(F) | -18.4 °F - closed cup |
| Flash Point(C) | -28 °C - closed cup |
| Purity | ≥99.8% |
| bp | 55-56 °C (lit.) |
| mp | -110 °C |
| Density | 0.74 g/mL at 25 °C (lit.) |
| Refractive Index | n |
| UNSPSC | 41116105 |



