ChemicalBook > CAS DataBase List > 5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE

5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE

Product Name
5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE
CAS No.
250726-93-3
Chemical Name
5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE
Synonyms
3,4-Ethylenedioxythiophene-2-boronic Acid Pinacol Ester;2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid, pinacol ester;2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronicacid,pinacolester97%;(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)boronic Acid Pinacol Ester;2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid, pinacol ester 97%;4,4,5,5-tetramethyl-2-{2H,3H-thieno[3,4-b][1,4]dioxin-5-yl}-1,3,2-dioxaborolane;2-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;2-(2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXIN-7-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE;5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE;5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxane
CBNumber
CB4105769
Molecular Formula
C12H17BO4S
Formula Weight
268.14
MOL File
250726-93-3.mol
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5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE Property

Melting point:
93 °C
Boiling point:
372.9±42.0 °C(Predicted)
Density 
1.21±0.1 g/cm3(Predicted)
storage temp. 
2-8°C
form 
powder to crystal
color 
White to Light yellow
λmax
280nm(CH2Cl2)(lit.)
InChI
InChI=1S/C12H17BO4S/c1-11(2)12(3,4)17-13(16-11)10-9-8(7-18-10)14-5-6-15-9/h7H,5-6H2,1-4H3
InChIKey
HRLHWIMNIQOHRF-UHFFFAOYSA-N
SMILES
O1CCOC2=C(B3OC(C)(C)C(C)(C)O3)SC=C12
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Safety

Hazard Codes 
Xi
HS Code 
2934999090
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Warning
Hazard statements

H302Harmful if swallowed

H312Harmful in contact with skin

H332Harmful if inhaled

Precautionary statements

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

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P270Do not eat, drink or smoke when using this product.

P271Use only outdoors or in a well-ventilated area.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P330Rinse mouth.

P363Wash contaminated clothing before reuse.

P501Dispose of contents/container to..…

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N-Bromosuccinimide Price

TCI Chemical
Product number
D5525
Product name
2-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Purity
>98.0%(GC)
Packaging
1g
Price
$113
Updated
2025/07/31
TRC
Product number
D679078
Product name
2,3-Dihydrothieno[3,4-B][1,4]dioxine-5-boronicAcidPinacolEster
Packaging
10mg
Price
$45
Updated
2021/12/16
Apolloscientific
Product number
OR9767
Product name
2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronicacid,pinacolester
Purity
97%
Packaging
250mg
Price
$134
Updated
2021/12/16
SynQuest Laboratories
Product number
6H70-1-X0
Product name
2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid, pinacol ester
Purity
97%
Packaging
250mg
Price
$148
Updated
2021/12/16
AK Scientific
Product number
8950CV
Product name
2-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging
1g
Price
$220
Updated
2021/12/16

5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE Preparation Products And Raw materials

Raw materials

Preparation Products

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5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE Suppliers

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250726-93-3, 5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINERelated Search:

Thiophene-2-boronic acid pinacol ester 3,4-Ethylenedioxythiophene 3-METHOXYTHIOPHENE-2-BORONIC ACID 3,4-Dimethoxythiophene 5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE

  • 5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxane
  • 2-(2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXIN-7-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
  • 5-(4,4,5,5-TETRAMETHYL-[1,3,2]DIOXABOROLAN-2-YL)-2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXINE
  • 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid, pinacol ester
  • 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronic acid, pinacol ester 97%
  • Thieno[3,4-b]-1,4-dioxin, 2,3-dihydro-5-(4,4,5,5-tetraMethyl-1,3,2-dioxaborolan-2-yl)-
  • 2-(2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
  • 2,3-Dihydrothieno[3,4-b][1,4]dioxine-5-boronicacid,pinacolester97%
  • 4,4,5,5-tetramethyl-2-{2H,3H-thieno[3,4-b][1,4]dioxin-5-yl}-1,3,2-dioxaborolane
  • (2,3-Dihydrothieno[3,4-b][1,4]dioxin-5-yl)boronic Acid Pinacol Ester
  • 3,4-Ethylenedioxythiophene-2-boronic Acid Pinacol Ester
  • 250726-93-3
  • C12H17BO4S