5527-76-4

5527-76-4 structure

Name: ETHYL 5-METHOXY-4-OXO-1,4-DIHYDRONAPHTHALENE-2-CARBOXYLATE
Chemical Name: ethyl 5-methoxy-4-oxochromene-2-carboxylate
CAS Number: 5527-76-4
Molecular Formula: C₁₃H₁₂O₅
Molecular Weight: 248.23100
Create Date: 2016-10-20 09:56:50
Modify Date: 2025-09-17 23:13:02

Name	ethyl 5-methoxy-4-oxochromene-2-carboxylate
Synonyms	Ethyl 5-methoxy-4-oxo-4H-1-benzopyran-2-carboxylate 5-methoxy-4-oxo-4H-chromene-2-carboxylic acid ethyl ester ethyl 5-methoxy-4-oxo-4H-chromene-2-carboxylate 4H-1-Benzopyran-2-carboxylic acid,5-methoxy-4-oxo-,ethyl ester ethyl 5-methoxy-4-oxo-4H-chromen-2-carboxylate 2-ethyloxy-5-methoxychromone

Density	1.284g/cm3
Boiling Point	382.9ºC at 760 mmHg
Molecular Formula	C₁₃H₁₂O₅
Molecular Weight	248.23100
Flash Point	213.2ºC
Exact Mass	248.06800
PSA	65.74000
LogP	1.97830
Index of Refraction	1.555

CHEMICAL IDENTIFICATION

RTECS NUMBER :: DJ2392000

CHEMICAL NAME :: 4H-1-Benzopyran-2-carboxylic acid, 5-methoxy-4-oxo-, ethyl ester

CAS REGISTRY NUMBER :: 5527-76-4

BEILSTEIN REFERENCE NO. :: 1319702

LAST UPDATED :: 199612

DATA ITEMS CITED :: 1

MOLECULAR FORMULA :: C13-H12-O5

MOLECULAR WEIGHT :: 248.25

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >100 mg/kg

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

REFERENCE :: JMCMAR Journal of Medicinal Chemistry. (American Chemical Soc., Distribution Office Dept. 223, POB POB 57136, West End Stn., Washington, DC 20037) V.6- 1963- Volume(issue)/page/year: 15,865,1972

HS Code	2918990090

703-23-1

95-92-1

~79%

5527-76-4

Literature: MERCK PATENT GMBH Patent: WO2006/94601 A1, 2006 ; Location in patent: Page/Page column 62 ;

699-83-2

5527-76-4

Literature: Hadjeri, Mohamed; Barbier, Magali; Ronot, Xavier; Mariotte, Anne-Marie; Boumendjel, Ahcene; Boutonnat, Jean Journal of Medicinal Chemistry, 2003 , vol. 46, # 11 p. 2125 - 2131

HS Code	2918990090
Summary	2918990090. other carboxylic acids with additional oxygen function and their anhydrides, halides, peroxides and peroxyacids; their halogenated, sulphonated, nitrated or nitrosated derivatives. VAT:17.0%. Tax rebate rate:13.0%. . MFN tariff:6.5%. General tariff:30.0%

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