Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: FLOSEQUINAN
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Purity: 98.0%
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76568-02-0

76568-02-0 structure

Name: flosequinan
Chemical Name: 7-fluoro-1-methyl-3-methylsulfinylquinolin-4-one
CAS Number: 76568-02-0
Molecular Formula: C₁₁H₁₀FNO₂S
Molecular Weight: 239.27
Catalog: API Circulatory system medication Antihypertensive drug
Create Date: 2018-06-26 19:54:07
Modify Date: 2025-08-21 17:31:26
Flosequinan is a balanced vasodilator. Flosequinan not only significantly reduces systemic vascular resistance, but also significantly reduces the beating component of left ventricular afterload, characteristic impedance and arterial wave reflection, which can be used in the research of acute heart failure[1].

Name	7-fluoro-1-methyl-3-methylsulfinylquinolin-4-one
Synonyms	7-fluoro-1-methyl-3-methylsulphinyl-4-quinolone Manoplax FLOSEQUINAN 7-Fluoro-1-methyl-3-(methylsulfinyl)quinolin-4(1H)-one 7-fluoro-1-methyl-3-methylsulfinyl-4-quinolone [7-Fluoro-1-methyl-3-(methylsulfinyl)-4(1H)-quinolone] 4(1H)-Quinolinone,7-fluoro-1-methyl-3-(methylsulfinyl) Flosequinan (USAN/INN)

Description	Flosequinan is a balanced vasodilator. Flosequinan not only significantly reduces systemic vascular resistance, but also significantly reduces the beating component of left ventricular afterload, characteristic impedance and arterial wave reflection, which can be used in the research of acute heart failure[1].
Related Catalog	Research Areas >> Cardiovascular Disease Signaling Pathways >> Others >> Others
References	[1]. Yano M, et al. Effects of balanced vasodilator, flosequinan, on aortic impedance in failing heart. J Cardiovasc Pharmacol. 1998 Sep;32(3):466-70.

Density	1.44g/cm3
Boiling Point	423.1ºC at 760 mmHg
Melting Point	226-228°
Molecular Formula	C₁₁H₁₀FNO₂S
Molecular Weight	239.27
Flash Point	209.7ºC
Exact Mass	239.04200
PSA	58.28000
LogP	2.28070
Index of Refraction	1.654

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VC8292500

CHEMICAL NAME :: 4(1H)-Quinolinone, 7-fluoro-1-methyl-3-(methylsulfinyl)-, (+-)-

CAS REGISTRY NUMBER :: 76568-02-0

LAST UPDATED :: 199612

DATA ITEMS CITED :: 14

MOLECULAR FORMULA :: C11-H10-F-N-O2-S

MOLECULAR WEIGHT :: 239.28

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Sense Organs and Special Senses (Eye) - lacrimation Behavioral - somnolence (general depressed activity) Skin and Appendages - hair

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 500 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Behavioral - convulsions or effect on seizure threshold Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Intravenous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 120 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Behavioral - convulsions or effect on seizure threshold Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 400 mg/kg

TOXIC EFFECTS :: Behavioral - tremor Behavioral - convulsions or effect on seizure threshold Gastrointestinal - changes in structure or function of salivary glands

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Mammal - dog

DOSE/DURATION :: >250 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Gastrointestinal - nausea or vomiting

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: LD - Lethal dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: >1200 mg/kg

TOXIC EFFECTS :: Behavioral - somnolence (general depressed activity) Gastrointestinal - changes in structure or function of salivary glands Gastrointestinal - nausea or vomiting

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1260 mg/kg/4W-I

TOXIC EFFECTS :: Liver - changes in liver weight Kidney, Ureter, Bladder - urine volume increased Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 4095 mg/kg/26W-I

TOXIC EFFECTS :: Liver - fatty liver degeneration Nutritional and Gross Metabolic - changes in sodium Related to Chronic Data - changes in testicular weight

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 18200 mg/kg/52W-I

TOXIC EFFECTS :: Gastrointestinal - changes in structure or function of salivary glands Blood - normocytic anemia Biochemical - Metabolism (Intermediary) - other proteins

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: 2800 mg/kg/4W-I

TOXIC EFFECTS :: Liver - changes in liver weight Endocrine - changes in adrenal weight Nutritional and Gross Metabolic - weight loss or decreased weight gain

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: 18200 mg/kg/26W-I

TOXIC EFFECTS :: Liver - fatty liver degeneration Kidney, Ureter, Bladder - changes in bladder weight Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - transaminases

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Primate - monkey

DOSE/DURATION :: 8190 mg/kg/52W-I

TOXIC EFFECTS :: Cardiac - EKG changes not diagnostic of specified effects Liver - fatty liver degeneration Biochemical - Metabolism (Intermediary) - other proteins

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993 ** REPRODUCTIVE DATA **

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 1100 mg/kg

SEX/DURATION :: female 7-17 day(s) after conception

TOXIC EFFECTS :: Reproductive - Maternal Effects - other effects Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

TYPE OF TEST :: TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :: Oral

DOSE :: 2200 mg/kg

SEX/DURATION :: female 17-21 day(s) after conception lactating female 21 day(s) post-birth

TOXIC EFFECTS :: Reproductive - Effects on Newborn - viability index (e.g., # alive at day 4 per # born alive) Reproductive - Effects on Newborn - growth statistics (e.g.%, reduced weight gain)

REFERENCE :: KSRNAM Kiso to Rinsho. Clinical Report. (Yubunsha Co., Ltd., 1-5, Kanda Suda-Cho, Chiyoda-ku, KS Bldg., Tokyo 101, Japan) V.1- 1960- Volume(issue)/page/year: 27,2047,1993

HS Code	2933499090

154639-75-5

76568-02-0

Literature: US5011931 A1, ;

77-78-1

76561-14-3

76568-02-0

Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 4 p. 387 - 392

122-51-0

154639-75-5

~80%

76568-02-0

Literature: Birch, Alan M.; Davies, Roy V.; Maclean, Lachlan; Robinson, Keith Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), 1994 , # 4 p. 387 - 392

321-50-6

76568-02-0

Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 4 p. 387 - 392

76561-13-2

76568-02-0

Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 4 p. 387 - 392

2252-51-9

76568-02-0

Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 4 p. 387 - 392

128992-62-1

76568-02-0

Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 4 p. 387 - 392

97927-92-9

76568-02-0

Literature: Journal of the Chemical Society, Perkin Transactions 1: Organic and Bio-Organic Chemistry (1972-1999), , # 4 p. 387 - 392

Precursor 8
154639-75-5 77-78-1 76561-14-3 122-51-0
321-50-6 2252-51-9 128992-62-1 97927-92-9
DownStream 0

HS Code	2933499090
Summary	2933499090. other compounds containing in the structure a quinoline or isoquinoline ring-system (whether or not hydrogenated), not further fused. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:20.0%

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