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Cas Database

Name	1,2-Epoxybutane	EINECS	203-438-2
CAS No.	106-88-7	Density	0.88 g/cm³
PSA	12.53000	LogP	0.79520
Solubility	86.8g/L at 25℃	Melting Point	-130oC
Formula	C₄H₈O	Boiling Point	63.4 °C at 760 mmHg
Molecular Weight	72.1069	Flash Point	-15 °C
Transport Information	UN 3022 3/PG 2	Appearance	colourless liquid with an unpleasant smell
Safety	9-16-29-36/37-61-19	Risk Codes	11-20/21/22-36/37/38-40-52/53
Molecular Structure		Hazard Symbols	F, Xn
Synonyms	Butane,1,2-epoxy- (8CI);Oxirane, ethyl- (9CI);1,2-Butene oxide;1,2-Butyleneepoxide;1,2-Butylene oxide;1,2-Epoxybutane;1-Butene oxide;1-Butylene oxide;2-Ethyloxirane;Butene 1,2-epoxide;DL-1,2-Epoxybutane;Ethylethylene oxide;Ethyloxirane;NSC 24240;a-Butylene oxide;	Article Data	106

1,2-Epoxybutane Synthetic route

: 106-98-9
1-butylene

: 80-15-9
Cumene hydroperoxide

A: 106-88-7
ethyloxirane

B: 617-94-7
1-methyl-1-phenylethyl alcohol

Conditions

Conditions	Yield
With Ti-HMS at 95℃; under 26252.6 Torr;	A 98.6% B n/a

: 106-98-9
1-butylene

: 106-88-7
ethyloxirane

Conditions

Conditions	Yield
With phosphotungstic acid; phosphoric acid tributyl ester; dihydrogen peroxide In toluene at 70℃; under 3750.38 Torr; for 5h; Temperature; Pressure;	96.8%
With tert.-butylhydroperoxide; 2C13H10N3O2(1-)*MoO2(2+) In methanol; dichloromethane for 1h; Catalytic behavior; Reagent/catalyst;	91%
With dihydrogen peroxide; teterabutylammonium In acetonitrile at 31.85℃; for 8h;	88%

: 1873-25-2
1-chloro-butan-2-ol

: 106-88-7
ethyloxirane

Conditions

Conditions	Yield
With Ph4SbOMe In dichloromethane at 40℃; for 3h;	64%
With potassium hydroxide
With Ph4SbOMe In dichloromethane at 40℃; for 4h;	75 % Chromat.

: 26106-95-6
2-chloro-1-butanol

: 106-88-7
ethyloxirane

Conditions

Conditions	Yield
With Ph4SbOMe In dichloromethane at 40℃; for 3h;	10%

: 106-98-9
1-butylene

A: 106-88-7
ethyloxirane

B: 5077-67-8
1-Hydroxy-2-butanone

Conditions

Conditions	Yield
With oxygen at 500℃; under 5148.6 Torr;

: 2482-57-7
1-bromo-2-butanol

: 106-88-7
ethyloxirane

Conditions

Conditions	Yield
With potassium hydroxide

: 106-98-9
1-butylene

: 36709-10-1
acetylperoxy radical

: 106-88-7
ethyloxirane

Conditions

Conditions	Yield
at 83.4 - 137℃; Kinetics; further compounds;

: 930-22-3
epoxybutene

A: 106-88-7
ethyloxirane

B: 627-27-0
homoalylic alcohol

C: 6117-91-5
(E/Z)-2-buten-1-ol

D: 123-72-8
butyraldehyde

E: 123-73-9
crotonaldehyde

F: 71-36-3
butan-1-ol

Conditions

Conditions	Yield
With hydrogen; at 30℃; under 760 Torr; for 8h; Product distribution; Mechanism; catalytic hydrogenation of the title compound in the presence of various catalysts (cationic rhodium complexes); influence of the type of catalyst's ligand, reaction time and pressure on the activity of catalysts;	A 2.1 % Chromat. B 16.5 % Chromat. C 11.7 % Chromat. D 4.4 % Chromat. E 44.3 % Chromat. F 1.7 % Chromat.
With hydrogen at 80℃; under 16274.9 Torr; Autoclave;

...Expand

: 24068-63-1
2-bromo-1-butanol

: 106-88-7
ethyloxirane

Conditions

Conditions	Yield
With potassium carbonate In 1,4-dioxane at 25℃; for 120h; Yield given;

: 39972-78-6
allyl t-butyl peroxide

: 106-88-7
ethyloxirane

Conditions

Conditions	Yield
With tert-butyl peroxyacetate at 110℃; under 0.001 Torr; for 12h;

1,2-Epoxybutane Toxicity Data With Reference

1.	skn-rbt 500 mg/24H MLD	85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,770.
2.	eye-rbt 100 mg/24H MOD	85JCAE Prehled Prumyslove Toxikologie; Organicke Latky Marhold, J.,Prague, Czechoslovakia.: Avicenum,1986,770.
3.	mmo-klp mmol/L	MUREAV Mutation Research. 89 (1981),269.
4.	trn-dmg-orl 5 pph	ENMUDM Environmental Mutagenesis. 7 (1985),349.
5.	mma-ssp 1600 μmol/L	TCMUD8 Teratogenesis, Carcinogenesis, and Mutagenesis. 3 (1983),75.
6.	orl-rat LD50:500 mg/kg	NTIS** National Technical Information Service. (Springfield, VA 22161) (Formerly U.S. Clearinghouse for Scientific and Technical Information) PB81-168510 .
7.	ihl-rat LCLo:4000 ppm/4H	AIHAAP American Industrial Hygiene Association Journal. 23 (1962),95.
8.	skn-rbt LD50:2100 mg/kg	AIHAAP American Industrial Hygiene Association Journal. 23 (1962),95.

1,2-Epoxybutane Consensus Reports

NTP Carcinogenesis Studies (inhalation); Clear Evidence: rat; No Evidence: mouse NTPTR* National Toxicology Program Technical Report Series. (Research Triangle Park, NC 27709) No. NTP-TR-329 (1988). . Community Right-To-Know List. EPA Genetic Toxicology Program. Reported in EPA TSCA Inventory.

1,2-Epoxybutane Safety Profile

Confirmed carcinogen with experimental carcinogenic data. Moderately toxic by ingestion and skin contact. Mildly toxic by inhalation. Experimental reproductive effects. Mutation data reported. Dangerous fire hazard when exposed to heat, flame, or powerful oxidizers. To fight fire, use dry chemical, water spray, mist or fog, alcohol foam. When heated to decomposition it emits acrid smoke and fumes.

1,2-Epoxybutane Standards and Recommendations

DFG MAK: Animal Carcinogen, Suspected Human Carcinogen

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