2-Butene, mixture of cis and trans
ALDRICH/363359 - ≥99%
Synonym: β-Butylene; Pseudobutylene
CAS Number: 107-01-7
Empirical Formula (Hill Notation): C4H8
Molecular Weight: 56.11
EC Number: 203-452-9
MDL Number: MFCD00064458
Linear Formula: CH3CH=CHCH3
Product Type: Chemical
| assay | ≥99% |
| bp | 1 °C (lit.) |
| expl. lim. | 9.3 % |
| InChI | 1S/C4H8/c1-3-4-2/h3-4H,1- |
| InChI key | IAQRGUVFOMOMEM-ONEGZZNKSA |
| mp | −140 °C (lit.) |
| SMILES string | CC=CC |
| vapor pressure | 1.9 mmHg ( 0 °C) |
| General description: | 2-Butene is an alkene. All-silica zeolite RUB-41, containing 8- and 10-membered rings, is reported to be capable of separating trans-2-butene and cis-2-butene from 1-butene. Asymmetric gydrozirconation of cis- and trans-2-butene is reported. Stereospecific addition of methylene to trans-2-butene is reported to afford trans-1,2dimethylcyclopropane while similar addition to cis-2-butene affords cis-1,2dimethylcyclopropane. |
| Packaging: | 200 g in Sure/Pac™ |
| Recommended products: | Brass hose adapter Z146811 or brass body mini gas regulator Z513539 is recommended. |
| Symbol |   GHS02,GHS04 |
| Signal word | Danger |
| Hazard statements | H220 - H280 |
| Precautionary statements | P410 + P403 |
| Hazard Codes | F+ |
| Risk Statements | 12 |
| Safety Statements | 9-16-33 |
| RIDADR | UN1012 - class 2 - Butylene |
| WGK Germany | nwg |
| Flash Point(F) | -29.2 °F - closed cup |
| Flash Point(C) | -34 °C - closed cup |
| Purity | ≥99% |
| bp | 1 °C (lit.) |
| mp | −140 °C (lit.) |
| UNSPSC | 12352100 |