Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: 2-(2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXIN-5-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
Price: $Inquiry/100g $Inquiry/1kg $Inquiry/100kg $Inquiry/1000kg
Purity: 98.0%
Stocking Period: Inquiry
Contact: Ms Wang

250726-93-3

250726-93-3 structure

250726-93-3 structure

Name: 2-(2,3-DIHYDROTHIENO[3,4-B][1,4]DIOXIN-5-YL)-4,4,5,5-TETRAMETHYL-1,3,2-DIOXABOROLANE
Chemical Name: 5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine
CAS Number: 250726-93-3
Molecular Formula: C₁₂H₁₇BO₄S
Molecular Weight: 268.13700
Create Date: 2018-12-29 12:46:52
Modify Date: 2024-04-04 17:50:46

Name	5-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine
Synonyms	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-5-yl)-4,4,5,5-tetramethyl-1,3,2-dioxoborolane 2-(2,3-dihydrothieno[3,4-b][1,4]dioxin-5-yl)-4,4,5,5-tetramethyl-2-thiophen-2-yl-1,3,2-dioxaborolane 5-(4,4,5,5-tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno-[3,4-b][1,4]dioxin 3,4-ethylenedioxythiophene 4,4',5,5'-tetramethyl-1,3,2-dioxaboronic ester 5-(4,4,5,5-Tetramethyl-[1,3,2]dioxaborolan-2-yl)-2,3-dihydrothieno[3,4-b][1,4]dioxine

Density	1.21g/cm3
Boiling Point	372.9ºC at 760mmHg
Melting Point	93ºC
Molecular Formula	C₁₂H₁₇BO₄S
Molecular Weight	268.13700
Flash Point	179.3ºC
Exact Mass	268.09400
PSA	65.16000
LogP	1.81850
Vapour Pressure	2E-05mmHg at 25°C
Index of Refraction	1.53
Storage condition	2-8°C

Hazard Codes	Xi: Irritant;
HS Code	2934999090

76-09-5 structure

76-09-5

5419-55-6 structure

5419-55-6

126213-50-1 structure

126213-50-1

~86%

250726-93-3 structure

250726-93-3

Literature: Tetrahedron, , vol. 69, # 2 p. 861 - 866

61676-62-8 structure

61676-62-8

126213-50-1 structure

126213-50-1

~71%

250726-93-3 structure

250726-93-3

Literature: Tetrahedron, , vol. 55, # 40 p. 11745 - 11754

126213-50-1 structure

126213-50-1

~%

250726-93-3 structure

250726-93-3

Literature: Journal of Organic Chemistry, , vol. 77, # 20 p. 8851 - 8863

Precursor 4
76-09-5 5419-55-6 126213-50-1 61676-62-8
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%