5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one

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Names

[ CAS No. ]:
147086-79-1

[ Name ]:
5,6-Dihydro-6-methyl-4H-thieno[2,3-b]thiopyran-4-one

[Synonym ]:
dorzolamide

Chemical & Physical Properties

[ Density]:
1.3

[ Boiling Point ]:
307.5ºC at 760 mmHg

[ Molecular Formula ]:
C8H8OS2

[ Molecular Weight ]:
184.27900

[ Exact Mass ]:
184.00200

[ PSA ]:
70.61000

[ LogP ]:
2.81510

[ Vapour Pressure ]:
0.000722mmHg at 25°C

[ Index of Refraction ]:
1.62

Safety Information

[ HS Code ]:
2934999090

Synthetic Route

Click to get detail synthetic route

Precursor & DownStream

Precursor

  • (S)-3-(THIOPHEN-2-YLTHIO)BUTANOIC ACID
  • (S)-METHYL 3-(THIOPHEN-2-YLTHIO)BUTANOATE

DownStream

  • (4R,6S)-6-Methyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-ol
  • Dorzolamide
  • N-6-Methyl-7,7-dioxo-2-sulfamoyl-5,6-dihydro-4H-thieno[2,3-b]thiopyran-4-yl]acetamide

Customs

[ HS Code ]: 2934999090

[ Summary ]:
2934999090. other heterocyclic compounds. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%