Dayang Chem (Hangzhou) Co., Ltd.
China
Product Name: Butanoic acid,4-fluoro-3-oxo-, ethyl ester
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Purity: 98.0%
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372-37-2

372-37-2 structure

Name: Butanoic acid,4-fluoro-3-oxo-, ethyl ester
Chemical Name: ethyl 4-fluoro-3-oxobutanoate
CAS Number: 372-37-2
Molecular Formula: C₆H₉FO₃
Molecular Weight: 148.13200
Create Date: 2016-01-14 08:02:51
Modify Date: 2025-08-25 23:55:58

Name	ethyl 4-fluoro-3-oxobutanoate
Synonyms	4-fluoro-acetoacetic acid ethyl ester 4-fluoro-3-oxo-butyric acid ethyl ester ethyl 2-fluoro-acetoacetate ACETOACETIC ACID,4-FLUORO-,ETHYL ESTER ethyl 4-fluoro-3-oxo-butanoate WLN: F1V1VO2 4-Fluor-acetessigsaeure-aethylester Ethyl 4-fluoroacetoacetate

Density	1.108g/cm3
Boiling Point	178.5ºC at 760mmHg
Molecular Formula	C₆H₉FO₃
Molecular Weight	148.13200
Flash Point	60.5ºC
Exact Mass	148.05400
PSA	43.37000
LogP	0.47820

CHEMICAL IDENTIFICATION

RTECS NUMBER :: AK5500000

CHEMICAL NAME :: Acetoacetic acid, 4-fluoro-, ethyl ester

CAS REGISTRY NUMBER :: 372-37-2

BEILSTEIN REFERENCE NO. :: 1761273

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C6-H9-F-O3

MOLECULAR WEIGHT :: 148.15

WISWESSER LINE NOTATION :: F1V1VO2

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 2500 ug/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: JACSAT Journal of the American Chemical Society. (American Chemical Soc., Distribution Office Dept. 223, POB 57136, West End Stn., Washington, DC 20037) V.1- 1879- Volume(issue)/page/year: 79,1959,1957

HS Code	2918300090

459-72-3

141-78-6

372-37-2

Literature: SCHERING CORPORATION; SOUTHERN RESEARCH INSTITUTE; ARASAPPAN, Ashok; NJOROGE, F., George; BENNETT, Frank; GIRIJAVALLABHAN, Vinay, M.; HUANG, Yuhua; HUELGAS, Regina; PIWINSKI, John, J.; SHIH, Neng-Yang; VERMA, Vishal; VELAZQUEZ, Francisco; VENKATRAMAN, Srikanth; KWONG, Cecil, D.; ANANTHAN, Subramaniam; CLARK, Jeremy; GENG, Feng; KEZAR, Hollis, S., III.; MADDRY, Joseph, A.; REYNOLDS, Robert, C.; ROYCHOWDHURY, Abhijit; SECRIST, John, A., III.; FOWLER, Anita, T. Patent: WO2010/22121 A1, 2010 ; Location in patent: Page/Page column 176 ;

459-72-3

105-39-5

372-37-2

Literature: Loos; Herman Bulletin des Societes Chimiques Belges, 1959 , vol. 68, p. 129,132 Full Text Show Details Bergmann et al. Journal of the Chemical Society, 1959 , p. 3278,3282

459-72-3

105-36-2

372-37-2

Literature: Loos; Herman Bulletin des Societes Chimiques Belges, 1959 , vol. 68, p. 129,132 Full Text Show Details Bergmann et al. Journal of the Chemical Society, 1959 , p. 3278,3282

Precursor 4
459-72-3 141-78-6 105-39-5 105-36-2
DownStream 4
787-07-5 1598-64-7 1598-62-5 3110-42-7

HS Code	2918300090
Summary	2918300090 other carboxylic acids with aldehyde or ketone function but without other oxygen function, their anhydrides, halides, peroxides, peroxyacids and their derivatives。Supervision conditions:None。VAT:17.0%。Tax rebate rate:9.0%。MFN tariff:6.5%。General tariff:30.0%

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