DC Chemicals Limited
China
Product Name: Questin
Price: ￥Inquiry/1g
Purity: 98.9%
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3774-64-9

3774-64-9 structure

Name: Questin
Chemical Name: questin
CAS Number: 3774-64-9
Molecular Formula: C₁₆H₁₂O₅
Molecular Weight: 284.26300
Catalog: Signaling Pathways Anti-infection Bacterial
Create Date: 2017-09-02 13:36:22
Modify Date: 2025-08-26 17:20:35
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
Synonyms	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

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

HS Code	2914690090

61539-64-8

3774-64-9

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

518-82-1

74-88-4

521-61-9

3775-08-4

Detail

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
61539-64-8 518-82-1 74-88-4
DownStream 3
87686-82-6 89367-83-9 5018-84-8

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%

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