CAS No 497-59-6 , 3-hydroxy-4-oxopyran-2,6-dicarboxylic acid

Name: 3-hydroxy-4-oxopyran-2,6-dicarboxylic acid
Synonyms: 3-hydroxy-4-oxopyran-2,6-dicarboxylic acid; 497-59-6;Poppy acid; 3-HYDROXY-4-OXO-4H-PYRAN-2,6-DICARBOXYLIC ACID; 3-Hydroxy-4-oxo-1,4-pyran-2,6-dicarboxylic acid; NSC805; AC1NS0KO;
CAS Registry Number:497-59-6
Flash Point: 149.8°C
Boiling Point: 353.8°Cat760mmHg
Density: 2.043g/cm³
Refractive index: 1.717
Flash Point: 149.8°C
EINECS: 207-848-2
Molecular Weight: 200.10246
InchiKey: ZEGRKMXCOCRTCS-UHFFFAOYSA-N
InChI: InChI=1S/C7H4O7/c8-2-1-3(6(10)11)14-5(4(2)9)7(12)13/h1,9H,(H,10,11)(H,
12,13)
Molecular Formula: C₇H₄O₇
Molecular Structure:

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497-59-6 3-hydroxy-4-oxopyran-2,6-dicarboxylic acid

3-hydroxy-4-oxopyran-2,6-dicarboxylic acid
JS(Tianjin) Chemical & Metallurgical Co., Ltd. [Manufacturer]
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497-59-6 MECONIC ACID

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References of 3-hydroxy-4-oxopyran-2,6-dicarboxylic acid

Title: Meconic Acid
CAS Registry Number: 497-59-6
CAS Name: 3-Hydroxy-4-oxo-4H-pyran-2,6-dicarboxylic acid
Synonyms: oxychelidonic acid
Molecular Formula: C7H4O7
Molecular Weight: 200.10
Percent Composition: C 42.02%, H 2.01%, O 55.97%
Literature References: From opium which contains 4 to 6%. Prepn: Thoms, Pietrulla, Ber. Pharm. Ges. 31, 4 (1921); Wibaut, Kleinpool, Rec. Trav. Chim. 66, 24 (1947).

Derivative Type: Monohydrate
Properties: Prisms from concd aq solns. One gram dissolves in 4 ml hot water, 50 ml methanol, 50 ml ethyl acetate, 100 ml acetone; freely sol in ethanol, benzene.

Derivative Type: Trihydrate
Properties: Orthorhombic pyramidal prisms from dil aq solns. Becomes anhydr when heated to 100-102° for 20 min. Dec with evolution of CO2 when heated to 120° or when boiled with water. The slight brown tint often characteristic of meconic acid prepns is due to traces of iron.