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2,7-Dihydroxy-9-fluorenone

2,7-Dihydroxy-9-fluorenone structure

CAS No.: 42523-29-5

Chemical Name:: 2,7-Dihydroxy-9-fluorenone

Synonyms: 2,7-Dihydroxy-9H-fluoren-9-one;2,7-Dihydroxy-9H-fluoren-9-on;2,7-Dihydroxy-9-fluo;2,7-DIHYDROXYFLUORENONE;7-Dihydroxy-9-fluorenone;2,7-Dihydroxy-9-Fluorene;2,7-DIHYDROXY-9-FLUORENONE;2,7-Dihydroxyl-9-Fluorenone;2,7-Dihydroxy-fluoren-9-one;2,7- Dihydroxy florene-9-one

CBNumber:: CB4254625

Molecular Formula:: C13H8O3

Molecular Weight:: 212.2

MDL Number:: MFCD00037141

MOL File:: 42523-29-5.mol

MSDS File:: SDS

Last updated:2025-07-24 18:13:45

Product description	Number	Pack Size	Price
2,7-Dihydroxy-9H-fluoren-9-one >98.0%(HPLC)(T)	D1685	5g	$44
2,7-Dihydroxy-9H-fluoren-9-one >98.0%(HPLC)(T)	D1685	25g	$126
2,7-DIHYDROXYFLUORENONE 97%	25029	1G	$12
2,7-DIHYDROXYFLUORENONE 97%	25029	5G	$31
2,7-DIHYDROXYFLUORENONE 97%	25029	25G	$69
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2,7-Dihydroxy-9-fluorenone Properties

Melting point	338 °C
Boiling point	444.5±20.0 °C(Predicted)
Density	1.497±0.06 g/cm3(Predicted)
storage temp.	Sealed in dry,Room Temperature
form	powder to crystal
pka	8.87±0.20(Predicted)
color	Light yellow to Brown
InChI	InChI=1S/C13H8O3/c14-7-1-3-9-10-4-2-8(15)6-12(10)13(16)11(9)5-7/h1-6,14-15H
InChIKey	CWHPQXRTQSNTRR-UHFFFAOYSA-N
SMILES	C1(=O)C2=C(C=CC(O)=C2)C2=C1C=C(O)C=C2
CAS DataBase Reference	42523-29-5(CAS DataBase Reference)

SAFETY

Risk and Safety Statements

Symbol(GHS)

GHS07

Signal word

Warning

Hazard statements

H315-H319

Precautionary statements

P264-P280-P305+P351+P338-P337+P313P-P264-P280-P302+P352-P321-P332+P313-P362

HS Code

2914.50.3000

NFPA 704

	0
2		0

2,7-Dihydroxy-9-fluorenone price More Price(24)

Manufacturer	Product number	Product description	CAS number	Packaging	Price	Updated	Buy
TCI Chemical	D1685	2,7-Dihydroxy-9H-fluoren-9-one >98.0%(HPLC)(T)	42523-29-5	5g	$44	2026-04-30	Buy
TCI Chemical	D1685	2,7-Dihydroxy-9H-fluoren-9-one >98.0%(HPLC)(T)	42523-29-5	25g	$126	2026-04-30	Buy
AstaTech	25029	2,7-DIHYDROXYFLUORENONE 97%	42523-29-5	1G	$12	2026-04-30	Buy
AstaTech	25029	2,7-DIHYDROXYFLUORENONE 97%	42523-29-5	5G	$31	2026-04-30	Buy
AstaTech	25029	2,7-DIHYDROXYFLUORENONE 97%	42523-29-5	25G	$69	2026-04-30	Buy

Product number	Packaging	Price	Buy
D1685	5g	$44	Buy
D1685	25g	$126	Buy
25029	1G	$12	Buy
25029	5G	$31	Buy
25029	25G	$69	Buy

2,7-Dihydroxy-9-fluorenone Chemical Properties,Uses,Production

Chemical Properties

Dark red crystal or powder

Uses

2,7-dihydroxy-9-fluorenone is used as organic intermediates.

Synthesis

[1,1'-Biphenyl]-2-carboxylic acid, 4,4'-dihydroxy-, methyl ester

765944-63-6

42523-29-5

Methyl 4,4'-dihydroxy-[1,1'-biphenyl]-2-carboxylate (50 g, 0.20 mol) was used as a raw material and mixed with ZnCl2 (50 g, 0.37 mol) and polyphosphoric acid (PPA, 33 mL). The reaction mixture was stirred at 110-120 °C for 2 hours. Upon completion of the reaction, it was cooled to room temperature and water (500 mL) was slowly added to precipitate the product. The precipitate was collected by filtration and dried to give 40 g of reddish brown crystalline powder (2,7-dihydroxy-9-fluorenone). The yield was 95%; melting point 336-337°C (literature value 338°C [24]); IR (KBr) ν (cm^-1): 3388.9, 3360.6 (OH), 1700.7 (C=O); ESI-MS (m/z): 211.0 [M+H]^+, molecular formula C13H8O3 (molecular weight 212.0); 1H- NMR (300MHz, DMSO-d6) δ (ppm): 9.89 (s, 2H), 7.37 (d, J=4.8Hz, 2H), 6.90 (dd, J=4.9,2.4Hz, 2H), 6.86 (d, J=2.4Hz, 2H).

References

[1] Molecules, 2015, vol. 20, # 12, p. 21458 - 21463
[2] Bioorganic and Medicinal Chemistry, 2004, vol. 12, # 17, p. 4601 - 4611

2,7-Dihydroxy-9-fluorenone synthesis

Synthesis of 2,7-Dihydroxy-9-fluorenone from 2,7-Dibromo-9H-fluoren-9-one

2,7-Dihydroxy-9-fluorenone Preparation Products And Raw materials

Raw materials

[1,1'-Biphenyl]-2-carboxylic acid, 4,4'-dihydroxy-, methyl ester 1,3-Isobenzofurandione, 4-hydroxy-7-(4-methoxyphenyl)- 9H-Fluoren-9-one, 2,7-dimethoxy- 9H-Fluoren-9-one, 2,7-bis(acetyloxy)- 2-broMo-5-hydroxybenzoic acid Methyl ester

2,7-Dibromo-9H-fluoren-9-one 4,4'-DIHYDROXY-BIPHENYL-2-CARBOXYLIC ACID 4-BROMO-3-IODOPHENOL 4-Iodoanisole Fluorene

3-Methoxybenzaldehyde

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Preparation Products

Tilorone dihydrochloride

2,7-Dihydroxy-9-fluorenone Suppliers

Global( 294)Suppliers

Supplier	Tel	Email	Country	ProdList	Advantage
Changzhou Mascot Import & Export Co., Ltd	+86-0519-85010339 +86-13584504415	info@mascot-ie.com	China	433	58
Xi'an Yutbon Pharmaceutical Technology Co., Ltd	029-81140587 +8618717328141	sales@yutbon.com	China	454	58
Shandong Xingshun New Material Co., Ltd.	+86-0519-86461196	gxx@xingshengtech.com	China	552	58
Hebei Chuanghai Biotechnology Co,.LTD	+86-86-13131129325 +8613131129325	sales1@chuanghaibio.com	China	5235	58
Hebei Chuanghai Biotechnology Co., Ltd	+8615531151365	mina@chuanghaibio.com	China	18126	58
Anhui Ruihan Technology Co., Ltd	+8617756083858	daisy@anhuiruihan.com	China	973	58
Hebei Zhuanglai Chemical Trading Co Ltd	+86-16264648883	niki@zlchemi.com	China	7245	58
Shanghai Daken Advanced Materials Co.,Ltd	+86-2158073036	info@dakenam.com	China	13843	58
Henan Tianfu Chemical Co.,Ltd.	+86-0371-55170693 +86-19937530512	info@tianfuchem.com	China	21590	55
Shanghai Time Chemicals CO., Ltd.	+86-021-57951555 +8617317452075	jack.li@time-chemicals.com	China	1803	55

Supplier	Advantage
Changzhou Mascot Import & Export Co., Ltd	58
Xi'an Yutbon Pharmaceutical Technology Co., Ltd	58
Shandong Xingshun New Material Co., Ltd.	58
Hebei Chuanghai Biotechnology Co,.LTD	58
Hebei Chuanghai Biotechnology Co., Ltd	58
Anhui Ruihan Technology Co., Ltd	58
Hebei Zhuanglai Chemical Trading Co Ltd	58
Shanghai Daken Advanced Materials Co.,Ltd	58
Henan Tianfu Chemical Co.,Ltd.	55
Shanghai Time Chemicals CO., Ltd.	55

Unveiling the Potential of 2,7-Dihydroxy-9-fluorenone: A Multifaceted Compound in Modern Chemistry
2,7-Dihydroxy-9-fluorenone's journey from an obscure molecular entity to a compound of interest illustrates the evolving lands....
Apr 22，2024

2,7-Dihydroxy-9-fluorenone: Indication, Application, Preparation
2,7-Dihydroxy-9-fluorenone is an important pharmaceutical intermediate and functional monomer for materials.
Apr 19，2023

View Lastest Price from 2,7-Dihydroxy-9-fluorenone manufacturers

Update time	Product	Price	Min. Order	Purity	Supply Ability	Manufacturer
2025-12-24	2,7-Dihydroxy-9-fluorenone 42523-29-5	US $0.10 / KG	1KG	99.0%	1000 tons	Shaanxi Dideu Medichem Co. Ltd
2025-06-27	2,7-Dihydroxy-9-fluorenone 42523-29-5	US $0.00-0.00 / KG	50KG	99%	500000kg	Hebei Chuanghai Biotechnology Co., Ltd
2025-05-26	2,7-Dihydroxy-9-fluorenone 42523-29-5	US $5.00-2.00 / KG	1KG	99%	10000kg	Hebei Chuanghai Biotechnology Co,.LTD

2,7-Dihydroxy-9-fluorenone
42523-29-5
US $0.10 / KG
99.0%
Shaanxi Dideu Medichem Co. Ltd

2,7-Dihydroxy-9-fluorenone
42523-29-5
US $0.00-0.00 / KG
99%
Hebei Chuanghai Biotechnology Co., Ltd

2,7-Dihydroxy-9-fluorenone
42523-29-5
US $5.00-2.00 / KG
99%
Hebei Chuanghai Biotechnology Co,.LTD

2,7-Dihydroxy-9-fluorenone Spectrum

2,7-Dihydroxy-9-fluorenone(42523-29-5)¹HNMR

42523-29-5(2,7-Dihydroxy-9-fluorenone)Related Search:

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Tilorone dihydrochloride CHRYSAZIN(RG) DIHYDROXY BENZALDEHYDE 2,7-Dihydroxy-9-fluorenone 2,7-DIMETHOXY-9H-FLUOREN-9-ONE

2,7-bis[2-(dimethylamino)ethoxy]-9H-fluoren-9-one dihydrochloride 2,7-DIETHOXY-9H-FLUOREN-9-ONE 9-hydroxybenfluron

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http://www.linchuanchem.com/product-e41.htm 2,7-DIHYDROXY-9-FLUORENONE 2,7-DIHYDROXYFLUORENONE 2,7-DIHYDROXY-9-FLUORENONE 98% 2,7-Dihydroxy-fluoren-9-one 2,7-Dihydroxy-9-fluo 7-Dihydroxy-9-fluorenone 2,7-Dihydroxyl-9-Fluorenone 2,7-Dihydroxy-9-Fluorene 2,7-Dihydroxy-9H-fluoren-9-on 9H-fluoren-9-one, 2,7-dihydroxy- High Purity Wite Best Price 2, 7-Dihydroxy-9-Fluorenone CAS No.?42523-29-5 2,7- Dihydroxy florene-9-one 2,7-Dihydroxy-9H-fluoren-9-one 42523-29-5 5431-88-7 Fluorenes, Flurenones Fluorene Derivatives Fluorene series