Thianaphthene CAS 95-15-8

Product Detail

Risk Codes	R22 – Harmful if swallowed R36/37/38 – Irritating to eyes, respiratory system and skin. R20/21/22 – Harmful by inhalation, in contact with skin and if swallowed. R51/53 – Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment.
Safety Description	S22 – Do not breathe dust. S24/25 – Avoid contact with skin and eyes. S36 – Wear suitable protective clothing. S26 – In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S61 – Avoid release to the environment. Refer to special instructions / safety data sheets.
UN IDs	UN3077
WGK Germany	3
TSCA	Yes
HS Code	29349990
Hazard Note	Irritant
Hazard Class	9
Packing Group	III

Miscible with water. Soluble in conventional organic solvents, soluble in ethanol, ether and acetone.

physical and chemical properties	benzothiophene, molecular formula C8H6S. Molecular weight 134.19. White leaf-like crystals. There is the smell of naphthalene. Can volatilize with water vapor. Melting point 32 ℃, boiling point 221 ℃, 103~105 ℃(2660Pa). Relative density 1.148432, refractive index 1.637437, UVλmax227, 257, 288nm in ethanol. Soluble in ether, acetone, benzene and general organic solvents, soluble in alcohol, insoluble in water, soluble in concentrated sulfuric acid is cherry red, disappear after heating, electrophilic substitution reaction can occur. It can be obtained by reacting ethylbenzene with hydrogen sulfide or by decarboxylation and condensation of o-mercaptocinnamic acid. for organic synthesis. Its derivative thioindigo is a red dye.
use	can be used as model compounds, organic sulfur sources, pharmaceutical compositions such as raloxifene and anti-osteoporosis agents, etc., as photochromic materials and optical recording media, as well as intermediates for preparing prostaglandin derivatives and reactants for anti-tumor preparations, it can also be used as a starting material for the preparation of heterocyclic sulfamesulfonyl and the synthesis of acyclic thioplatin compounds.
production method	industrially, it is mainly extracted from crude naphthalene. It can also be synthesized by styrene or ethylbenzene and hydrogen sulfide or condensed by thiophene and benzene ring.