1,4-Dithiapentalene

Name	Thieno[3,2-b]thiophene
Synonyms	K0277 1,4-THIOPHTHENE 1,4-Dithiapentalene 1,4-DITHIAPENTALENE Thieno[3,2-b]thiophen Thieno[3,2-b]thiophene THIENO[3,2-B]THIOPHENE 4-Dithiapentalene 1,4-Thiophthene Thieno[3,2-b]thiophene1,4-Dithiapentalene
CAS	251-41-2
InChI	InChI=1/C6H4S2/c1-3-7-6-2-4-8-5(1)6/h1-4H

Molecular Formula	C6H4S2
Molar Mass	140.23
Density	1.367±0.06 g/cm3(Predicted)
Melting Point	56 °C
Boling Point	71 °C / 1mmHg
Flash Point	98℃
Solubility	soluble in Methanol
Vapor Presure	0.144mmHg at 25°C
Appearance	White solid
Color	White crystals
Storage Condition	Keep in dark place,Sealed in dry,Room Temperature
Refractive Index	1.728
MDL	MFCD00179479

Hazard Symbols	Xn - Harmful
Risk Codes	R22 - Harmful if swallowed R36/37/38 - Irritating to eyes, respiratory system and skin.
Safety Description	S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S36/37 - Wear suitable protective clothing and gloves.
UN IDs	UN 3335
WGK Germany	3
HS Code	29309090
Hazard Note	Harmful

NIST chemical information	Information provided by: webbook.nist.gov (external link)
Use	Thieno [3,2-b] thiophene is used to prepare polymers that act as semiconductors.
Preparation	Thieno [3,2-b] thiophene is an organic intermediate that can be prepared from 3-bromothiophene through a four-step reaction.

Last Update：2024-04-09 21:01:54

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