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3,4-Dichloro-5-Isothiazolecarboxylic Acid

CAS: 18480-53-0 | C4HCl2NO2S

2D Structure

3D Structure

Loading 3D structure...

Basic Information

CAS Registry Number: 18480-53-0
Molecular Formula: C4HCl2NO2S
Molecular Mass: 198.03 g/mol

Names and Synonyms:

3,4-Dichloro-5-Isothiazolecarboxylic Acid
5-Isothiazolecarboxylic acid, 3,4-dichloro-
3,4-Dichloro-5-isothiazolecarboxylic acid
TD 1123
Pennwalt TD 1123
3,4-Dichloro-5-carboxyisothiazole
3,4-Dichloroisothiazol-5-carboxylic acid
3,4-Dichloroisothiazole-5-carboxylic acid

Identifiers:

SMILES:
O=C(O)c1snc(Cl)c1Cl
InChI:
InChI=1S/C4HCl2NO2S/c5-1-2(4(8)9)10-7-3(1)6/h(H,8,9)

Key Properties

Melting Point
179-179.5 °C @ Solvent: Water CAS Common Chemistry

Spectral Data

NMR, IR, and Mass spectral data

1H NMR
13C NMR
Predicting NMR spectra...
10 ppm 9 8 7 6 5 4 3 2 1 0 ppm
Shift (ppm) Multiplicity Integration Assignment
200 ppm 180 160 140 120 100 80 60 40 20 0 ppm
Shift (ppm) DEPT Assignment

Note: These NMR spectra are predicted computationally and may differ from experimental data. Predictions are based on chemical environment analysis.

External Resources

All Properties

Comprehensive physical and chemical properties

Property Value Source
Molecular Mass 198.03 g/mol CAS Common Chemistry
196.910504632 g/mol RDKit
Canonical SMILES O=C(O)C=1SN=C(Cl)C1Cl CAS Common Chemistry
InChI InChI=1S/C4HCl2NO2S/c5-1-2(4(8)9)10-7-3(1)6/h(H,8,9) CAS Common Chemistry
InChI Key InChIKey=HQZKNCJWLIWCSV-UHFFFAOYSA-N CAS Common Chemistry
Melting Point 179-179.5 °C @ Solvent: Water CAS Common Chemistry
Name 3,4-Dichloro-5-isothiazolecarboxylic acid CAS Common Chemistry
Heavy Atom Count 10 RDKit
Hydrogen Bond Acceptors 3 RDKit
Hydrogen Bond Donors 1 RDKit
Rotatable Bonds 1 RDKit
Aromatic Ring Count 1 RDKit
Topological Polar Surface Area 50.19 Ų RDKit
LogP 2.1481 RDKit
Molar Refractivity 39.0933 RDKit

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