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5-Methylthiazole

CAS: 3581-89-3 | C4H5NS

2D Structure

3D Structure

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Basic Information

CAS Registry Number: 3581-89-3
Molecular Formula: C4H5NS
Molecular Mass: 99.16 g/mol

Names and Synonyms:

5-Methylthiazole
Thiazole, 5-methyl-
5-Methylthiazole
5-Methyl-1,3-thiazole

Identifiers:

SMILES:

Cc1cncs1

InChI:

InChI=1S/C4H5NS/c1-4-2-5-3-6-4/h2-3H,1H3

Key Properties

Boiling Point
143-145 °C CAS Common Chemistry
Melting Point
67.1-68.3 °C CAS Common Chemistry
Density
1.13 g/cm³ 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 99.16 g/mol CAS Common Chemistry
99.15799999999999 g/mol RDKit
99.01427016 g/mol RDKit
99.158 g/mol RDKit
187.985 g/mol chempirical lib
Density 1.13 g/cm³ CAS Common Chemistry
1.127 g/cm3 @ Temp: 20 °C CAS Common Chemistry
Boiling Point 143-145 °C CAS Common Chemistry
Canonical SMILES N1=CSC(=C1)C CAS Common Chemistry
InChI InChI=1S/C4H5NS/c1-4-2-5-3-6-4/h2-3H,1H3 CAS Common Chemistry
InChI Key InChIKey=RLYUNPNLXMSXAX-UHFFFAOYSA-N CAS Common Chemistry
Melting Point 67.1-68.3 °C CAS Common Chemistry
Name 5-Methylthiazole CAS Common Chemistry
Heavy Atom Count 6 RDKit
5 chempirical lib
Hydrogen Bond Acceptors 2 RDKit
1 chempirical lib
Hydrogen Bond Donors 0 RDKit
1 chempirical lib
Rotatable Bonds 0 RDKit
Aromatic Ring Count 1 RDKit
0 chempirical lib
Topological Polar Surface Area 12.89 Ų RDKit
12.03 Ų chempirical lib
LogP 1.45152 RDKit
1.4515 RDKit
0.46 chempirical lib
Molar Refractivity 26.850999999999992 RDKit
Ring Count 1 RDKit
Formal Charge 0 RDKit
Fraction Csp3 0.25 RDKit
0.33 chempirical lib

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