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Merck
CN

27420

Citraconic acid

purum, ≥99.0% (T)

Synonym(s):

Methylmaleic acid

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About This Item

Linear Formula:
CH3C(CO2H)=CHCO2H
CAS Number:
Molecular Weight:
130.10
EC Number:
207-858-7
UNSPSC Code:
12352100
PubChem Substance ID:
Beilstein/REAXYS Number:
1722679
MDL number:
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InChI key

HNEGQIOMVPPMNR-IHWYPQMZSA-N

InChI

1S/C5H6O4/c1-3(5(8)9)2-4(6)7/h2H,1H3,(H,6,7)(H,8,9)/b3-2-

SMILES string

C\C(=C\C(O)=O)C(O)=O

grade

purum

assay

≥99.0% (T)

ign. residue

≤0.1%

mp

88-94 °C (lit.), 91-95 °C

Regulatory Information

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Robert Ludmerczki et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 25(51), 11963-11974 (2019-06-30)
Thermal decomposition of citric acid is one of the most common synthesis methods for fluorescent carbon dots; the reaction pathway is, however, quite complex and the details are still far from being understood. For instance, several intermediates form during the

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