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Cas Database |
| Name |
2,3-Dimethyloxirane |
EINECS | 221-877-8 |
| CAS No. | 3266-23-7 | Density | 0.804 |
| PSA | 12.53000 | LogP | 0.79360 |
| Solubility | >=10 g/100 mL at 20 C | Melting Point |
N/A |
| Formula | C4H8 O | Boiling Point | 56.5°Cat760mmHg |
| Molecular Weight | 72.1069 | Flash Point | -26 ºC |
| Transport Information | UN 3271 | Appearance | Clear colorless liquid. |
| Safety | Mutation data reported. When heated to decomposition it emits acrid smoke and fumes. | Risk Codes | R11;R36/37/38 |
| Molecular Structure |
|
Hazard Symbols |
 
|
| Synonyms |
Butane,2,3-epoxy- (8CI); 2,3-Butylene oxide; 2,3-Dimethyloxirane; 2,3-Epoxybutane;2-Butene epoxide; 2-Butene oxide; 2-Butylene oxide; b-Butylene oxide; b-Oxybutene |
Article Data | 42 |
2,3-Dimethyloxirane Chemical Properties
IUPAC Name: 2,3-Dimethyloxirane
Product Name: 2-Butene oxide
The MF of 2,3-Dimethyloxirane (CAS NO.3266-23-7) is C4H8O.
The MW of 2,3-Dimethyloxirane (CAS NO.3266-23-7) is 72.11.
Synonyms of 2,3-Dimethyloxirane (CAS NO.3266-23-7): 2,3-Epoxy-butan ; 2-Butene epoxide ; 2-Buteneexpoxide ; beta-Butylene oxide ; beta-Oxybutene ; Butane, 2,3-epoxy-
Product Categories: Industrial/Fine Chemicals;Simple 3-Membered Ring Compounds
Apperance: Clear colorless liquid
Index of Refraction: 1.395
EINECS: 221-877-8
Density: 0.855 g/ml
Flash Point: -15 °C
Boiling Point: 56.5 °C
2,3-Dimethyloxirane Uses
2,3-Dimethyloxirane (CAS NO.3266-23-7) is used as epoxides,intermediates in organic synthesis.
2,3-Dimethyloxirane Toxicity Data With Reference
| 1. | mmo-sat 5 µmol/plate | JJATDK JAT, Journal of Applied Toxicology. 2 (1982),282. | ||
| 2. | mmo-klp 20 µmol/L | MUREAV Mutation Research. 89 (1981),269. |
2,3-Dimethyloxirane Consensus Reports
EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.
2,3-Dimethyloxirane Safety Profile
Mutation data reported. When heated to decomposition it emits acrid smoke and fumes.Safety information of 2,3-Dimethyloxirane (CAS NO.3266-23-7):
Hazard Codes 
F,
Xi
Risk Statements
11 Highly Flammable
36/37/38 Irritating to eyes, respiratory system and skin
Safety Statements
16 Keep away from sources of ignition - No smoking
26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36 Wear suitable protective clothing
RIDADR UN 3271 3/PG 2
WGK Germany 3
RTECS EK3855000
2,3-Dimethyloxirane Specification
Epoxides, such as 2-Butene oxide, are highly reactive. They polymerize in the presence of catalysts or when heated. These polymerization reactions can be violent. Compounds in this group react with acids, bases, and oxidizing and reducing agents. They react, possibly violently with water in the presence of acid and other catalysts.
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