Shanghai Nianxing Industrial Co., Ltd
China
Product Name: 4H-1-Benzothiopyran-4-one,2,3-dihydro-, 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: 4H-1-Benzothiopyran-4-one,2,3-dihydro-, 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

19446-96-9

19446-96-9 structure

19446-96-9 structure

Name: 4H-1-Benzothiopyran-4-one,2,3-dihydro-, 1,1-dioxide
Chemical Name: 1,1-dioxo-2,3-dihydrothiochromen-4-one
CAS Number: 19446-96-9
Molecular Formula: C₉H₈O₃S
Molecular Weight: 196.22300
Create Date: 2018-11-24 20:37:47
Modify Date: 2025-09-16 15:06:44

Name	1,1-dioxo-2,3-dihydrothiochromen-4-one
Synonyms	Thiochroman-4-one,1-dioxide 3,4-dihydro-2H-1-benzothiopyran-4-one 1,1-dioxide thiochroman-4-one 1,1-dioxide 2,3-Dihydro-4H-thiochromen-4-one 1,1-dioxide 4H-1-Benzothiopyran-4-one,2,3-dihydro-,1,1-dioxide 1-thiochroman-4-one 1,1-dioxide Thiochromanone 1,1-dioxide 2,3-dihydro-4(H)-1-benzothiopyran-4-one 1,1-dioxide 1,1-Dioxo-1lambda6-thiochroman-4-one

Density	1.408g/cm3
Boiling Point	432.2ºC at 760mmHg
Melting Point	128-129.5 °C
Molecular Formula	C₉H₈O₃S
Molecular Weight	196.22300
Flash Point	294.1ºC
Exact Mass	196.01900
PSA	59.59000
LogP	2.12750
Vapour Pressure	1.13E-07mmHg at 25°C
Index of Refraction	1.597

HS Code	2932999099

22810-27-1 structure

22810-27-1

~%

19446-96-9 structure

19446-96-9

Literature: Nambara Yakugaku Zasshi, 1958 , vol. 78, p. 624,626 Chem.Abstr., 1958 , p. 18392

3528-17-4 structure

3528-17-4

~93%

19446-96-9 structure

19446-96-9

Literature: Patonay; Adam; Levai; Koever; Nemeth; Peters Journal of Organic Chemistry, 2001 , vol. 66, # 7 p. 2275 - 2280

Precursor 2
3528-17-4 22810-27-1
DownStream 5
27720-87-2 74122-58-0 74122-61-5 74695-57-1
56205-22-2

HS Code	2932999099
Summary	2932999099. other heterocyclic compounds with oxygen hetero-atom(s) only. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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