2-Butenedial, 2-hydroxy-

CAS:90065-65-9

Formula:C4H4O3

SUCCINIC ANHYDRIDE-2,3-14C

CAS:103869-75-6

Formula:C4H4O3

5-HYDROXY-2[5H]-FURANONE

CAS:14032-66-7

Formula:C4H4O3

4-oxoisocrotonic acid

CAS:1575-59-3

Formula:C4H4O3

vinylglyoxylate

CAS:56842-76-3

Formula:C4H4O3

3,6-Dioxabicyclo[3.1.0]hexan-2-one

CAS:754147-29-0

Formula:C4H4O3

Triformylmethane

CAS:18655-47-5

Formula:C4H4O3

2-Propyn-1-ol, hydrogen carbonate

CAS:57272-05-6

Formula:C4H4O3

3-Butynoic acid, 2-hydroxy-, (2R)-

CAS:71606-20-7

Formula:C4H4O3

4-Hydroxybut-2-ynoic acid

CAS:7218-52-2

Formula:C4H4O3