Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4-HYDROXY-3,4-DIHYDRO-2H-THIENO[3,2-E][1,2]THIAZINE 1,1-DIOXIDE
Price: Check
Purity: 95.0%
Stocking Period: 10 Day
Contact: Yang
Email: sales@echemcloud.com

Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 4-HYDROXY-3,4-DIHYDRO-2H-THIENO[3,2-E][1,2]THIAZINE 1,1-DIOXIDE
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang
Email: enquiry@dycnchem.com

138890-97-8

138890-97-8 structure

138890-97-8 structure

Name: 4-HYDROXY-3,4-DIHYDRO-2H-THIENO[3,2-E][1,2]THIAZINE 1,1-DIOXIDE
Chemical Name: 1,1-dioxo-3,4-dihydro-2H-thieno[3,2-e]thiazin-4-ol
CAS Number: 138890-97-8
Molecular Formula: C₆H₇NO₃S₂
Molecular Weight: 205.25500
Create Date: 2018-12-09 15:11:32
Modify Date: 2025-08-25 13:58:36

Name	1,1-dioxo-3,4-dihydro-2H-thieno[3,2-e]thiazin-4-ol

Density	1.637g/cm3
Boiling Point	410.6ºC at 760 mmHg
Molecular Formula	C₆H₇NO₃S₂
Molecular Weight	205.25500
Flash Point	202.1ºC
Exact Mass	204.98700
PSA	103.02000
LogP	1.48300
Vapour Pressure	1.77E-07mmHg at 25°C
Index of Refraction	1.656

HS Code	2934999090

138890-88-7 structure

138890-88-7

~69%

138890-97-8 structure

138890-97-8

Literature: Alcon Laboratories, Inc. Patent: US5153192 A1, 1992 ;

154127-28-3 structure

154127-28-3

~%

138890-97-8 structure

138890-97-8

Literature: AUSPEX PHARMACEUTICALS, INC. Patent: US2010/317655 A1, 2010 ; Location in patent: Page/Page column 15 ;

Precursor 2
138890-88-7 154127-28-3
DownStream 0

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

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