2H-1-Benzothiopyran,6-ethynyl-3,4-dihydro-4,4-diMethyl-

2H-1-Benzothiopyran,6-ethynyl-3,4-dihydro-4,4-diMethyl- - Names and Identifiers

Name	6-Ethynyl-4,4-Dimethyl-Thiochroman
Synonyms	Tazarotene Impurity 5 Tazarotene Intermediates 4,4-DIMETHYL-6-ETHYNYLTHIOCHROMAN 6-Ethynyl-4,4-Dimethylthiochroman 4,4-Dimethyl-6-ethynylthiochroman 6-Ethynyl-4,4-Dimethyl-Thiochroman 6-Ethynyl-4,4-dimethyl-thiochroman 6-ethynyl-4,4-dimethyl-2,3-dihydrothiochromene 6-ethynyl-4,4-dimethyl-3,4-dihydro-2H-thiochromene 6-Ethynyl-3,4-dihydro-4,4-dimethyl-2H-1-benzothiopyran 6-ethynyl-4,4-diMethyl-3,4-dihydro-2H-1-benzothiopyran 2H-1-Benzothiopyran,6-ethynyl-3,4-dihydro-4,4-diMethyl- Tazarotene IMpurity (6-Ethynyl-4,4-DiMethyl ThiochroMan)
CAS	118292-06-1
InChI	InChI=1/C13H14S/c1-4-10-5-6-12-11(9-10)13(2,3)7-8-14-12/h1,5-6,9H,7-8H2,2-3H3

2H-1-Benzothiopyran,6-ethynyl-3,4-dihydro-4,4-diMethyl- - Physico-chemical Properties

Molecular Formula	C13H14S
Molar Mass	202.32
Density	1.09
Melting Point	69-72 °C
Boling Point	299 °C
Flash Point	128 °C
Vapor Presure	0.002mmHg at 25°C
Storage Condition	2-8°C
Refractive Index	1.597
Physical and Chemical Properties	Light yellow solid
Use	This product is for scientific research only and shall not be used for other purposes.

2H-1-Benzothiopyran,6-ethynyl-3,4-dihydro-4,4-diMethyl- - Introduction

6-Ethynyl-4, 4-dimethyldihydrobenzothiopyran is an organic compound with the formula C13H14S. The following is an introduction to its nature, use, preparation and safety information:

Nature:
-Appearance: 6-ethynyl-4, 4-dimethyldihydrobenzothiopyran is a solid, usually white or light yellow crystals.
-Solubility: It is soluble in organic solvents, such as ethanol, dimethyl sulfoxide and chloroform.
-Melting point: Its melting point range is 61-65 degrees Celsius.
-Stability: It has good thermal stability when heated.

Use:
-6-ethynyl-4, 4-dimethyldihydrobenzothiopyran can be used as an intermediate in organic synthesis. It can be used in organic synthesis to prepare various organic compounds, such as compounds containing alkynyl and aryl groups.
-In the field of medicine, it can also be used as a key raw material for drug synthesis.

Preparation Method:
-6-ethynyl-4, 4-dimethyldihydrobenzothiopyran has many preparation methods, common methods include:
-It is obtained by the synthesis of chloroform (CHCl3) and 2-ethynyl-4, 4-dimethyldihydrobenzothiopyran under acidic conditions.
-It is obtained by the synthesis of chloroform and 4,4-dimethyl dihydrobenzothiopyran under alkaline conditions.

Safety Information:
-6-Ethynyl-4, 4-dimethyldihydrobenzothiopyran has limited toxicity data and safety information, so it should be used or handled in accordance with local regulations.
-Avoid contact with skin, eyes and respiratory tract and wear appropriate personal protective equipment.
-in use should be away from fire and high temperature, storage should be sealed to save, avoid light.

Last Update：2024-04-09 20:49:11