Mucochloric acid

C4H2Cl2O3CAS 87-56-9168.96 g/mol

OClClOHO
AldehydeAlkeneCarboxylic acidVinyl halide

Properties

Molecular formula
C4H2Cl2O3
Molar mass
168.96 g/mol
Exact mass
167.9381 Da
Melting point
127 °C
pKa
4.2
Flash point
100 °C (closed cup)
logP
0.96Crippen estimate
Polar surface area
54.4 Ų
H-bond donors / acceptors
1 / 2
Rotatable bonds
2
Double bonds
ZE/Z, in SMILES order

Hazards

Danger
Corrosive (GHS05)Acute Toxic (GHS06)Irritant (GHS07)Health Hazard (GHS08)

Aggregated from 150 ECHA notifications, via PubChem; a share says how many notifiers assign that statement.

Precautionary statements

P203, P260, P261, P264, P264+P265, P270, P272, P273, P280, P301+P316, P301+P330+P331, P302+P352, P302+P361+P354, P304+P340, P305+P354+P338, P316, P317, P318, P321, P330, P333+P317, P362+P364, P363, P405, P501

Identifiers

CAS number
87-56-9
SMILES
O=C/C(Cl)=C(/Cl)C(=O)O
InChIKey
LUMLZKVIXLWTCI-IHWYPQMZSA-N
InChI
InChI=1S/C4H2Cl2O3/c5-2(1-7)3(6)4(8)9/h1H,(H,8,9)/b3-2-
Characterization data

Calculated from the structure, in the form journals print them.

¹H NMR
Predicted ¹H NMR (400 MHz, CDCl₃) δ 11.50 (br s, 1H), 9.55 (s, 1H).
¹³C NMR
Predicted ¹³C NMR (101 MHz, CDCl₃) δ 193.0, 172.2, 138.4, 133.2.
[M + H]+
[M + H]+ Calcd for C4H3Cl2O3 168.9454
[M + Na]+
[M + Na]+ Calcd for C4H2Cl2NaO3 190.9273
[M − H]−
[M − H]− Calcd for C4HCl2O3 166.9308
Elemental analysis
Anal. Calcd for C4H2Cl2O3: C, 28.44; H, 1.19.

Weigh it out

Type any one amount. The others follow from the molar mass.

Names and synonyms

7 names
  • 2-Butenoic acid, 2,3-dichloro-4-oxo-, (2Z)-
  • Malealdehydic acid, dichloro-
  • 2-Butenoic acid, 2,3-dichloro-4-oxo-, (Z)-
  • (2Z)-2,3-Dichloro-4-oxo-2-butenoic acid
  • α,β-Dichloro-β-formylacrylic acid
  • Dichloromalealdehydic acid
  • 2,3-Dichloromaleic aldehyde acid

Work with Mucochloric acid

Similar compounds

Tanimoto similarity of circular fingerprints over the whole catalogue.

Elsewhere