1-Propyne, 3,3'-oxybis- cas no:6921-27-3

Name1-Propyne, 3,3'-oxybis-
CAS6921-27-3
Synonyms2-Propynylether (6CI,7CI,8CI); 3-[(Prop-2-ynyl)oxy]propyne; 4-Oxa-1,6-heptadiyne;Bis(2-propynyl) ether; Dipropargyl ether; Dipropargyl oxide; Propargyl ether
Molecular FormulaC6H6 O
Molecular Weight94.12

refractive index1.442

Hazardclass3.1

Hazard Xn
Risk R10;R19;R22
Safety

Poison by ingestion. Forms thermally unstable explosive peroxides in air. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS and ALKYNES and ETHERS.
Hazard CodesXn,Xi
Risk Statements 10-19-22
R10:Flammable. 
R19: 2-Propynyl ether (CAS NO.6921-27-3) may form explosive peroxides. 
R22:Harmful if swallowed.
Safety Statements 16-36
S16:Keep away from sources of ignition. 
S36:Wear suitable protective clothing.
RIDADR UN 3271 3/PG 3
WGK Germany 3
RTECS UK5950000
Hazard Note Irritant
HazardClass 3.1
PackingGroup II

Organism	Test Type	Route	Reported Dose (Normalized Dose)	Effect	Source
dog	LD50	oral	913mg/kg (913mg/kg)	BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) GASTROINTESTINAL: NAUSEA OR VOMITING LIVER: "HEPATITIS, FIBROUS (CIRRHOSIS, POST-NECROTIC SCARRING)"	Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 19, Pg. 389, 1960.
rabbit	LD50	oral	168mg/kg (168mg/kg)	BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: FOOD INTAKE (ANIMAL) LIVER: "HEPATITIS, FIBROUS (CIRRHOSIS, POST-NECROTIC SCARRING)"	Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 19, Pg. 389, 1960.
rat	LD50	oral	539mg/kg (539mg/kg)	BEHAVIORAL: SOMNOLENCE (GENERAL DEPRESSED ACTIVITY) BEHAVIORAL: FOOD INTAKE (ANIMAL) LIVER: "HEPATITIS, FIBROUS (CIRRHOSIS, POST-NECROTIC SCARRING)"	Federation Proceedings, Federation of American Societies for Experimental Biology. Vol. 19, Pg. 389, 1960.