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ChemicalBook >> CAS DataBase List >> 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane

4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane

$19 - $891
Product name: 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane
CAS: 1161009-89-7
MF: C31H27BO2
MW: 442.36
EINECS:
MDL Number:MFCD30187275
Synonyms:4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane;9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester;2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;4-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)-9,9'-spirobi[fluorene];Name: 9,9'-Spirobi[9H-fluoren]-4-ylboronic acid pinacol ester;2-(9,9'-spirobi[fluorene]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane;1,3,2-Dioxaborolane, 4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-;(9,9'-Spirobi[fluoren]-4-yl)boronic Acid Pinacol Ester

Price25 Properties Safety Information Description

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Brand

aablocks
ACHEMBLOCK
AK Scientific
Alichem
Ambeed
Crysdot
Matrix Scientific
Synthonix
TCI Chemical
TRC

Package

100mg
200mg
250mg
1g
1.00g
5.00g
5g
10g
25G
25.00g

Manufactureraablocks
Product numberAA000BKG
Product description4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 97%
Packaging250mg
Price$19
Updated2026-05-25
Buy

Manufactureraablocks
Product numberAA000BKG
Product description4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 97%
Packaging1g
Price$44
Updated2026-05-25
Buy

Manufactureraablocks
Product numberAA000BKG
Product description4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 97%
Packaging5g
Price$112
Updated2026-05-25
Buy

ManufacturerACHEMBLOCK
Product numberW163118
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging5G
Price$145
Updated2026-05-27
Buy

ManufacturerACHEMBLOCK
Product numberW163118
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging25G
Price$580
Updated2026-05-27
Buy

ManufacturerAK Scientific
Product number0483DU
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging5g
Price$297
Updated2021-12-16
Buy

ManufacturerAK Scientific
Product number0483DU
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging10g
Price$462
Updated2021-12-16
Buy

ManufacturerAlichem
Product number1161009897
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging5g
Price$606
Updated2021-12-16
Buy

ManufacturerAlichem
Product number1161009897
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging10g
Price$891
Updated2021-12-16
Buy

ManufacturerAmbeed
Product numberA237209
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging5g
Price$525
Updated2021-12-16
Buy

ManufacturerAmbeed
Product numberA237209
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging1g
Price$143
Updated2021-12-16
Buy

ManufacturerAmbeed
Product numberA237209
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging250mg
Price$58
Updated2021-12-16
Buy

ManufacturerAmbeed
Product numberA237209
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging100mg
Price$38
Updated2021-12-16
Buy

ManufacturerCrysdot
Product numberCD41002241
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging10g
Price$891
Updated2026-05-27
Buy

ManufacturerCrysdot
Product numberCD41002241
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%
Packaging5g
Price$594
Updated2026-05-27
Buy

ManufacturerMatrix Scientific
Product number306143
Product description2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane
Packaging1.00g
Price$63
Updated2026-05-19
Buy

Manufacturer	Product number	Product description	Packaging	Price	Updated	Buy
aablocks	AA000BKG	4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 97%	250mg	$19	2026-05-25	Buy
aablocks	AA000BKG	4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 97%	1g	$44	2026-05-25	Buy
aablocks	AA000BKG	4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane 97%	5g	$112	2026-05-25	Buy
ACHEMBLOCK	W163118	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	5G	$145	2026-05-27	Buy
ACHEMBLOCK	W163118	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	25G	$580	2026-05-27	Buy
AK Scientific	0483DU	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	5g	$297	2021-12-16	Buy
AK Scientific	0483DU	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	10g	$462	2021-12-16	Buy
Alichem	1161009897	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	5g	$606	2021-12-16	Buy
Alichem	1161009897	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	10g	$891	2021-12-16	Buy
Ambeed	A237209	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	5g	$525	2021-12-16	Buy
Ambeed	A237209	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	1g	$143	2021-12-16	Buy
Ambeed	A237209	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	250mg	$58	2021-12-16	Buy
Ambeed	A237209	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	100mg	$38	2021-12-16	Buy
Crysdot	CD41002241	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	10g	$891	2026-05-27	Buy
Crysdot	CD41002241	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane 97%	5g	$594	2026-05-27	Buy
Matrix Scientific	306143	2-(9,9'-Spirobi[fluoren]-4-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane	1.00g	$63	2026-05-19	Buy

Next Last

Properties

Melting point :216.0 to 220.0 °C
Boiling point :585.6±29.0 °C(Predicted)
Density :1.23±0.1 g/cm3(Predicted)
storage temp. :under inert gas (nitrogen or Argon) at 2-8°C
form :powder to crystal
color :White to Almost white

Safety Information

Symbol(GHS):

Signal word:

Warning

Hazard statements:

Code	Hazard statements	Hazard class	Category	Signal word	P-Codes
H302	Harmful if swallowed	Acute toxicity,oral	Category 4	Warning	P264, P270, P301+P312, P330, P501
H315	Causes skin irritation	Skin corrosion/irritation	Category 2	Warning	P264, P280, P302+P352, P321,P332+P313, P362
H319	Causes serious eye irritation	Serious eye damage/eye irritation	Category 2A	Warning	P264, P280, P305+P351+P338,P337+P313P
H335	May cause respiratory irritation	Specific target organ toxicity, single exposure;Respiratory tract irritation	Category 3	Warning

Precautionary statements:

P261	Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338	IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Description

4-(9,9''-Spirobifluorenyl)pinacolboronate acts as a reagent in the synthesis of new blue dual-core OIED emitters using Suzuki coupling reactions with (spirobifluorenyl)pinacolboronate or (borophenyl)carbazole.

More related product prices

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Suppliers and manufacturers

Adamas Reagent, Ltd. Shanghai Hanhong Scientific Co.,Ltd. Nanjing Norris-Pharm Technology Co., Ltd TOKYO CHEMICAL INDUSTRY CO., LTD. Zhengzhou HQ Material Co., Ltd. Zhengzhou Alfachem Co., Ltd. Shanghai YuanYe Biotechnology Co., Ltd. Amadis Chemical Company Limited Tianjin Yansetong Chemical Technology Co., Ltd. Aikon International Limited

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4,4,5,5-tetramethyl-2-(9,9'-spirobi[9H-fluoren]-4-yl)-1,3,2-Dioxaborolane

Properties

Safety Information

Description

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