Melting point :56 °C
Boiling point :71 °C / 1mmHg
Density :1.367±0.06 g/cm3(Predicted)
Flash point :98℃
storage temp. :Keep in dark place,Sealed in dry,Room Temperature
solubility :soluble in Methanol
form :powder to crystal
InChI :InChI=1S/C6H4S2/c1-3-7-6-2-4-8-5(1)6/h1-4H
InChIKey :VJYJJHQEVLEOFL-UHFFFAOYSA-N
SMILES :C12C=CSC=1C=CS2
NIST Chemistry Reference :Thieno[3,2-b]thiophene(251-41-2)
color :White crystals

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.