Questin

Modify Date: 2026-07-01 22:43:14

Questin structure	Common Name	Questin
	CAS Number	3774-64-9	Molecular Weight	284.26300
	Density	1.448g/cm3	Boiling Point	557ºC at 760mmHg
	Molecular Formula	C₁₆H₁₂O₅	Melting Point	N/A
	MSDS	N/A	Flash Point	213.9ºC

Use of Questin

Questin is an antibacterial agent isolated from marine Aspergillus flavipes. Questin exhibits antibacterial activity against V. harveyi, V. anguillarum, V. cholerae, and V. parahemolyticus with MIC values of 31.25 µg/mL, 62.5 µg/mL, 62.5 µg/mL, and 125 µg/mL[1].

Name	questin
Synonym	More Synonyms

Description	Questin is an antibacterial agent isolated from marine Aspergillus flavipes. Questin exhibits antibacterial activity against V. harveyi, V. anguillarum, V. cholerae, and V. parahemolyticus with MIC values of 31.25 µg/mL, 62.5 µg/mL, 62.5 µg/mL, and 125 µg/mL[1].
Related Catalog	Research Areas >> Infection Signaling Pathways >> Anti-infection >> Bacterial
References	[1]. Lei Guo, et al. Optimized production and isolation of antibacterial agent from marine Aspergillus flavipes against Vibrio harveyi. 3 Biotech. 2017 Dec;7(6):383.

Density	1.448g/cm3
Boiling Point	557ºC at 760mmHg
Molecular Formula	C₁₆H₁₂O₅
Molecular Weight	284.26300
Flash Point	213.9ºC
Exact Mass	284.06800
PSA	83.83000
LogP	2.19020
Index of Refraction	1.677
InChIKey	UUNPIWCQMVNINR-UHFFFAOYSA-N
SMILES	COc1cc(O)cc2c1C(=O)c1c(O)cc(C)cc1C2=O

HS Code	2914690090

1-chloro-4,7-di...

CAS#:61539-64-8

Questin

CAS#:3774-64-9

Learn More

Literature: Banville,J.; Brassard,P. Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1976 , p. 1852 - 1856

Emodin

CAS#:518-82-1

methyl iodide

CAS#:74-88-4

Physcion

CAS#:521-61-9

1-O-Methylemodin

CAS#:3775-08-4

Detail Learn More

Literature: Koyama, Junko; Takeuchi, Atsuko; Morita, Izumi; Nishino, Yu; Shimizu, Maki; Inoue, Munetaka; Kobayashi, Norihiro Bioorganic and Medicinal Chemistry, 2009 , vol. 17, # 21 p. 7493 - 7499

Precursor 3
CAS#:61539-64-8 1-chloro-4,7-di... CAS#:518-82-1 Emodin CAS#:74-88-4 methyl iodide
DownStream 3
CAS#:87686-82-6 (5-acetyloxy-4-... CAS#:89367-83-9 3,8-dihydroxy-1... CAS#:5018-84-8 1-hydroxy-6,8-d...

HS Code	2914690090
Summary	2914690090 other quinones。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:5.5%。General tariff:30.0%

Name: Antifungal activity against Saccharomyces cerevisiae ATCC 9763 up to 100 ug/ml 48 hrs...
Source: ChEMBL
Target: Saccharomyces cerevisiae
External Id: CHEMBL4150373

Name: Antiprotozoal activity against Tritrichomonas foetus KV1
Source: ChEMBL
Target: Tritrichomonas suis
External Id: CHEMBL4150374

Name: Antidiabetic nephropathic activity in rat HBZY-1 cells assessed as inhibition of high...
Source: ChEMBL
Target: N/A
External Id: CHEMBL2400237

Name: Antibacterial activity against Bacillus subtilis ATCC 6633 up to 100 ug/ml 48 hrs by ...
Source: ChEMBL
Target: Bacillus spizizenii
External Id: CHEMBL4150375

Name: Antidiabetic nephropathic activity in rat HBZY-1 cells assessed as inhibition of high...
Source: ChEMBL
Target: N/A
External Id: CHEMBL2400236

Name: Antidiabetic nephropathic activity in rat HBZY-1 cells assessed as inhibition of high...
Source: ChEMBL
Target: N/A
External Id: CHEMBL2400240

Name: Cytotoxicity against mouse NS1 cells up to 100 ug/ml 48 hrs by resazurin dye based as...
Source: ChEMBL
Target: N/A
External Id: CHEMBL4150381

Name: Cytotoxicity against rat HBZY-1 cells assessed as cell viability at 10 uM after 48 hr...
Source: ChEMBL
Target: N/A
External Id: CHEMBL2400235

Name: Antibacterial activity against Escherichia coli ATCC 25922 after 48 hrs by resazurin ...
Source: ChEMBL
Target: Escherichia coli
External Id: CHEMBL4150377

Name: Antifungal activity against Candida albicans ATCC 10231 after 48 hrs by bromocresol g...
Source: ChEMBL
Target: Candida albicans
External Id: CHEMBL4150379

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1,6-dihydroxy-8-methoxy-3-methylanthraquinone

Emodin-8-methyl ether

1-methylemodin

1,6-dihydroxy-8-methoxy-3-methylanthracene-9,10-dione

8-O-methylemodin

1-O-methylemodin

Questin

9,10-Anthracenedione,1,6-dihydroxy-8-methoxy-3-methyl

<U-14C>Questin

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China
Product Name: Questin
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China
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Purity: 97.0%
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The content on this webpage is sourced from various professional data sources. If you have any questions or concerns regarding the content, please feel free to contact service1@chemsrc.com.