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500-05-0

香豆酸;
2-吡喃酮-5-羧酸

Coumalic acid;
2-Oxo-2H-pyran-5-carboxylic acid;
2-Pyrone-5-carboxylic acid

Acetic acid,2-(5-oxo-2(5H)-furanylidene)-;
2,4-Hexadienedioicacid, 3-hydroxy-, g-lactone (7CI);
Acetic acid, (5-oxo-2(5H)-furanylidene)- (9CI);
D2(5H),a-Furanacetic acid, 5-oxo- (8CI);
(5-Oxo-2(5H)-furanylidene)acetic acid;
4-Carboxymethylenebut-2-enolide;
5-Carboxymethylene-2-oxo-2,5-dihydrofuran;
g-Carboxymethylene-Dab-butenolide

Acetic acid,2-(5-oxo-2(5H)-furanylidene)-, (2Z)-;
Aceticacid, (5-oxo-2(5H)-furanylidene)-, (2Z)- (9CI);
Acetic acid,(5-oxo-2(5H)-furanylidene)-, (Z)-;
D2(5H),a-Furanacetic acid, 5-oxo-, (Z)-(8CI)

2,5-二羥基對苯醌;
2,5-二羥基-1,4-苯喹酮;
2,5-二羥基-1,4-苯醌;
2,5-二羥基苯醌

2,5-Cyclohexadiene-1,4-dione,2,5-dihydroxy-;
Quinone,2,5-dihydroxy- (3CI);
p-Benzoquinone, 2,5-dihydroxy- (6CI,7CI,8CI);
2,5-Dihydroxy-1,4-benzoquinone;
2,5-Dihydroxy-p-benzoquinone;
2,5-Dihydroxycyclohexa-2,5-diene-1,4-dione;
Anilic acid;
NSC 3843

5-甲醛基呋喃-2-羧酸;
5-甲�；秽�-2-甲酸

2-Furancarboxylic acid,5-formyl-;
2-Furoicacid, 5-formyl- (6CI,8CI);
2-Carboxy-5-(formyl)furan;
2-Formyl-5-furancarboxylic acid;
5-Carboxyfurfural;
5-Formyl-2-furancarboxylicacid;
5-Formyl-2-furoic acid

A-氧-2-呋喃乙酸;
A-氧-2-呋喃乙酸;

2-Furanacetic acid, a-oxo-;
2-Furanglyoxylicacid (7CI,8CI);
2-(2-Furyl)-2-oxoacetic acid;
2-Furanyl(oxo)acetic acid;
2-Furylglyoxylic acid;
2-Oxo-2-(2-furanyl)acetic acid;
Furoylformic acid;
NSC59069

2-Furancarboxaldehyde,4,5-dihydro-4-(hydroxymethylene)-5-oxo-;
2-Furancarboxaldehyde, 4,5-dihydro-4-(hydroxymethylene)-5-oxo- (9CI)

2H-Pyran-6-carboxylicacid, 2-oxo-;
2,4-Hexadienedioicacid, 2-hydroxy-, d-lactone (7CI);
2-Pyranone-6-carboxylic acid;
2-Pyrone-6-carboxylic acid;
NSC 35012;
NSC 403109