3-Ethynylthiophene

Name	3-Ethynylthiophene
Synonyms	thienylacetylene 3-Ethynylthiophene 3-Thienylacethylene Thiophene, 3-ethynyl- (Thien-3-yl)acetylene 3-ETHYNYLTHIOPHENE 96 Thiophene, 3-ethynyl- (9CI)
CAS	67237-53-0

Molecular Formula	C6H4S
Molar Mass	108.16
Density	1.098 g/mL at 25 °C (lit.)
Boling Point	152-153 °C (lit.)
Flash Point	115°F
Water Solubility	Slightly soluble in water.
Appearance	Liquid
Color	Colorless to yellow to orange
Storage Condition	Keep in dark place,Inert atmosphere,2-8°C
Refractive Index	n20/D 1.5800(lit.)
MDL	MFCD04039973

Hazard Symbols	Xi - Irritant
Risk Codes	R10 - Flammable R37/38 - Irritating to respiratory system and skin. R41 - Risk of serious damage to eyes
Safety Description	S16 - Keep away from sources of ignition. S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S39 - Wear eye / face protection.
UN IDs	UN 1993 3/PG 3
WGK Germany	3
HS Code	29349990
Hazard Class	3
Packing Group	III

Use	3-ethynylthiophene can be used as a raw material to prepare benzothiazole through rhodium-catalyzed denitrification and cyclization of sulfonyl aryltriazole and thiopigment compounds.

Last Update：2024-04-09 20:49:11

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3-Ethynylthiophene

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