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438537

Sigma-Aldrich

2-Amino-5-phenyl-1,3,4-thiadiazole

96%

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About This Item

Empirical Formula (Hill Notation):
C8H7N3S
CAS Number:
Molecular Weight:
177.23
MDL number:
UNSPSC Code:
12352100
PubChem Substance ID:
NACRES:
NA.22

Quality Level

Assay

96%

form

solid

mp

223-227 °C (lit.)

SMILES string

Nc1nnc(s1)-c2ccccc2

InChI

1S/C8H7N3S/c9-8-11-10-7(12-8)6-4-2-1-3-5-6/h1-5H,(H2,9,11)

InChI key

UHZHEOAEJRHUBW-UHFFFAOYSA-N

General description

2-Amino-5-phenyl-1,3,4-thiadiazole on condensation with benzaldehyde (SPT), 4-nitrobenzaldehyde (SNT), 4-methoxybenzaldehyde (SMT), 2-hydroxybenzaldehyde (SSTH) or 2-hydroxyacetophenone affords Schiff′s bases. Its molecular geometry and vibrational frequencies have been evaluated using the Hartree-Fock and density functional method (B3LYP). 2-Amino-5-phenyl-1,3,4-thiadiazole has been reported to inhibit the corrosion of mild steel in 0.5M H2SO4 and 1.0M HCl. Corrosion inhibition has been examined using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS).

Application

2-Amino-5-phenyl-1,3,4-thiadiazole may be used for the synthesis of 1,3,4-thiadiazole derivatives.

Pictograms

Exclamation mark

Signal Word

Warning

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

WGK

WGK 3

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

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A K Srivastava et al.
Bioinorganic chemistry and applications, 3(3-4), 289-297 (2008-03-28)
The reactions of bis(cyclopentadienyl)titanium(IV) dichloride with Schiff bases derived by condensing 2- amino-5-phenyl-1,3,4-thiadiazole with benzaldehyde (SPT), 4-nitrobenzaldehyde (SNT), 4-methoxybenzaldehyde (SMT), 2-hydroxybenzaldehyde (SSTH) or 2-hydroxyacetophenone (SATH) have been studied in refluxing tetrahydrofuran and complexes of types [Cp(2)TiCl(SB)]Cl (SB= SPT, SNT or
Synthesis, characterization and antimicrobial activity of some carbamothioyl-1, 3, 4-thiadiazole derivatives.
Salih N, et al.
Synthesis, 4(2), 655-660 (2012)
Experimental and molecular dynamics studies on corrosion inhibition of mild steel by 2-amino-5-phenyl-1, 3, 4-thiadiazole.
Tang Y, et al.
Corrosion Science, 52(1), 242-249 (2010)
Y Atalay et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 64(1), 68-72 (2005-08-13)
The molecular geometry and vibrational frequencies of 2-amino-5-phenyl-1,3,4-thiadiazole (C8H7N3S) in the ground state has been calculated using the Hartree-Fock and density functional method (B3LYP) with 6-31G(d) basis set. The optimized geometric bond lengths and bond angles obtained by using HF
Jingjing Zhang et al.
Carbohydrate polymers, 215, 108-118 (2019-04-15)
In the current study, five novel urea-functionalized chitosan derivatives were synthesized via condensation reactions of chloroacetyl chitosan (CTCS) with urea groups bearing nitrogen-containing heterocycles. In order to identify the structure characteristics of chitosan derivatives, FT-IR, 1H NMR spectroscopy, and elemental

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