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Thiomalic Acid

CAS: 70-49-5 | C4H6O4S

2D Structure

3D Structure

Loading 3D structure...

Basic Information

CAS Registry Number: 70-49-5
Molecular Formula: C4H6O4S
Molecular Weight: 150.155 g/mol

Names and Synonyms:

Thiomalic Acid
2-Sulfanylbutanedioic acid
NSC 7302
Mercaptobutanedioic acid
(±)-Mercaptosuccinic acid
DL-Thiomalic acid
DL-Mercaptosuccinic acid
Monomercaptosuccinic acid
2-Mercaptosuccinic acid
α-Mercaptosuccinic acid
2-Thiomalic acid
Thiomalic acid
Mercaptosuccinic acid
2-Mercaptobutanedioic acid
Butanedioic acid, mercapto-
Succinic acid, mercapto-
Butanedioic acid, 2-mercapto-

Identifiers:

SMILES:
O=C(O)CC(S)C(=O)O
InChI:
InChI=1S/C4H6O4S/c5-3(6)1-2(9)4(7)8/h2,9H,1H2,(H,5,6)(H,7,8)

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

Molecular

Property Value Source
Molecular Weight 150.155 g/mol RDKit

Exact

Property Value Source
Exact Molecular Weight 149.998679672 g/mol RDKit

Heavy

Property Value Source
Heavy Atom Count 9 count RDKit

Hydrogen

Property Value Source
Hydrogen Bond Acceptors 3 count RDKit
Hydrogen Bond Donors 3 count RDKit

Rotatable

Property Value Source
Rotatable Bonds 3 count RDKit

Aromatic

Property Value Source
Aromatic Ring Count 0 count RDKit

Topological

Property Value Source
Topological Polar Surface Area 74.6 Ų RDKit

Physical Properties

Property Value Source
LogP -0.15589999999999993 RDKit
molecular_mass 150.15 g/mol Legacy Database
wikipedia_url https://en.wikipedia.org/wiki/Thiomalic_acid None Legacy Database
cas-canonical-smile O=C(O)CC(S)C(=O)O None Legacy Database
cas-inchi InChI=1S/C4H6O4S/c5-3(6)1-2(9)4(7)8/h2,9H,1H2,(H,5,6)(H,7,8) None Legacy Database
cas-inchi-key InChIKey=NJRXVEJTAYWCQJ-UHFFFAOYSA-N None Legacy Database
cas-melting-point 149 °C None Legacy Database
cas-name (±)-Mercaptosuccinic acid None Legacy Database
wikipedia-name Thiomalic acid None Legacy Database

Molar

Property Value Source
Molar Refractivity 32.66259999999999 RDKit

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