ChemicalBook > CAS DataBase List > (2H)1,4-BENZOTHIAZIN-3(4H)-ONE

(2H)1,4-BENZOTHIAZIN-3(4H)-ONE

Product Name
(2H)1,4-BENZOTHIAZIN-3(4H)-ONE
CAS No.
5325-20-2
Chemical Name
(2H)1,4-BENZOTHIAZIN-3(4H)-ONE
Synonyms
BenzothiazinHone;4H-1,4-benzothiazin-3-one;2H-1,4-Benzothiazine-3-ol;1,4-Benzothiazin-3(4H)-one;2H-benzo[1,4]thiazin-3-one .;(2H)1,4-BENZOTHIAZIN-3(4H)-ONE;2H-1,4-BENZOTHIAZINE-3(4H)-ONE;2H-BENZO[B][1,4]THIAZIN-3(4H)-ONE;2H-1,4-Benzothiazin-3(4H)-one >2,4-Dihydro-1,4-benzothiazin-3-one
CBNumber
CB9189913
Molecular Formula
C8H7NOS
Formula Weight
165.21
MOL File
5325-20-2.mol
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(2H)1,4-BENZOTHIAZIN-3(4H)-ONE Property

Melting point:
176-178 °C(lit.)
Boiling point:
272.25°C (rough estimate)
Density 
1.1979 (rough estimate)
refractive index 
1.6458 (estimate)
storage temp. 
2-8°C
form 
powder to crystal
pka
12.90±0.20(Predicted)
color 
White to Orange to Green
BRN 
131642
CAS DataBase Reference
5325-20-2(CAS DataBase Reference)
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Safety

Hazard Codes 
Xi
Safety Statements 
24/25
WGK Germany 
3
Hazard Note 
Irritant
HS Code 
2934999090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
175277
Product name
2H-1,4-Benzothiazin-3(4H)-one
Purity
97%
Packaging
25g
Price
$53
Updated
2025/07/31
TCI Chemical
Product number
B4554
Product name
2H-1,4-Benzothiazin-3(4H)-one
Purity
>98.0%(GC)
Packaging
1g
Price
$28
Updated
2025/07/31
TCI Chemical
Product number
B4554
Product name
2H-1,4-Benzothiazin-3(4H)-one
Purity
>98.0%(GC)
Packaging
5g
Price
$71
Updated
2025/07/31
TCI Chemical
Product number
B4554
Product name
2H-1,4-Benzothiazin-3(4H)-one
Purity
>98.0%(GC)
Packaging
25g
Price
$208
Updated
2025/07/31
TRC
Product number
H999943
Product name
2H-1,4-Benzothiazin-3(4H)-one
Packaging
50mg
Price
$45
Updated
2021/12/16
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(2H)1,4-BENZOTHIAZIN-3(4H)-ONE Chemical Properties,Usage,Production

Chemical Properties

ALMOST WHITE TO LIGHT BEIGE-GREY CRYST. POWDER

General Description

2H-1,4-Benzothiazin-3(4H)-one derivatives were synthesized and tested for calcium antagonistic and calmodulin antagonistic activities.

(2H)1,4-BENZOTHIAZIN-3(4H)-ONE Preparation Products And Raw materials

Raw materials

Preparation Products

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(2H)1,4-BENZOTHIAZIN-3(4H)-ONE Suppliers

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5325-20-2, (2H)1,4-BENZOTHIAZIN-3(4H)-ONERelated Search:

7-CHLORO-2H-1,4-BENZOTHIAZIN-3(4H)-ONE (2H)1,4-BENZOTHIAZIN-3(4H)-ONE METHYL (2H-1 4-BENZOTHIAZIN-3(4H)-ONE-2& (3-OXO-3,4-DIHYDRO-2H-1,4-BENZOTHIAZIN-2-YL)ACETIC ACID 2-(3-OXO-3,4-DIHYDRO-2H-1,4-BENZOTHIAZIN-2-YL)-ETHANOHYDRAZIDE N-HYDROXY-2-(3-OXO-3,4-DIHYDRO-2H-1,4-BENZOTHIAZIN-2-YL)ACETAMIDE ETHYL 2-(3-OXO-3,4-DIHYDRO-2H-1,4-BENZOTHIAZIN-2-YL) ACETATE 2-Methyl-2H-1,2-benzothiazin-3(4H)-one 1,1-dioxide 3,4-DIHYDRO-2H-1,4-BENZOTHIAZINE 2-[(DIMETHYLAMINO)METHYLENE]-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 2-([(4-METHOXYBENZYL)AMINO]METHYLENE)-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 2-[(4-CHLOROANILINO)METHYLENE]-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 2-(ANILINOMETHYLENE)-7-CHLORO-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 2-[(2-CHLOROANILINO)METHYLENE]-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 7-CHLORO-2-[(DIMETHYLAMINO)METHYLENE]-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 2-(4-TOLUIDINOMETHYLENE)-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 7-CHLORO-2-[(2-HYDROXYANILINO)METHYLENE]-2H-1,4-BENZOTHIAZIN-3(4H)-ONE 2-([(4-CHLOROBENZYL)AMINO]METHYLENE)-2H-1,4-BENZOTHIAZIN-3(4H)-ONE

  • 4H-1,4-benzothiazin-3-one
  • BenzothiazinHone
  • (2H)-1,4-Benzothiazin-3-(4H)-one 98%
  • 2H-1,4-BENZOTHIAZIN-3(4H)-ONE, 99+%
  • 2H-1,4-Benzothiazine-3-ol
  • 3,4-Dihydro-2H-1,4-benzothiazine-3-one
  • 1,4-Benzothiazin-3(4H)-one
  • 3,4-Dihydro-2H-1,4-benzothiazin-3-one
  • 2,4-Dihydro-1,4-benzothiazin-3-one
  • 2H-benzo[1,4]thiazin-3-one .
  • 3,4-Dihydro-3-oxo-2H-1,4-benzothiazine
  • 2<i>H</i>-1,4-Benzothiazin-3(4<i>H</i>)-one
  • 2H-BENZO[B][1,4]THIAZIN-3(4H)-ONE
  • (2H)1,4-BENZOTHIAZIN-3(4H)-ONE
  • 2H-1,4-BENZOTHIAZINE-3(4H)-ONE
  • JR-8118, 2H-Benzo[b][1,4]thiazin-3(4H)-one, 97%
  • 2-acetamido-2-[(2-chlorophenyl)methyl]propanedioic acid diethyl ester
  • 2H-1,4-Benzothiazin-3(4H)-one &gt
  • 2H-1,4- Benzothiaxine- 3(4H )- one
  • 2H-1,4-Benzothiazin-3(4H)-one, 95%
  • 5325-20-2
  • C8H7NOS
  • Building Blocks
  • Heterocyclic Building Blocks
  • Thiazines
  • Building Blocks
  • Heterocyclic Building Blocks
  • Thiazines