1H-1,2,4-Triazole-3-thiol
Synonym(s):3-Mercapto-1,2,4-triazole
- CAS NO.：3179-31-5
- Empirical Formula: C2H3N3S
- Molecular Weight: 101.13
- MDL number: MFCD00005229
- EINECS: 221-656-6
- SAFETY DATA SHEET (SDS)
- Update Date: 2026-01-13 11:13:25
What is 1H-1,2,4-Triazole-3-thiol?
Chemical properties
WHITE TO SLIGHTLY YELLOW FINE CRYSTALLINE POWDER
The Uses of 1H-1,2,4-Triazole-3-thiol
1H-1,2,4-Triazole-3-thiol was used in a study to design a surface enhanced Raman scattering based probe for fast and accurate detection of DNA markers.
General Description
1H-1,2,4-Triazole-3-thiol is a mercapto-substituted 1,2,4-triazole ligand and exhibits tautomerism in solution. 1H-1,2,4-Triazole-3-thiol forms novel luminescent polymers with cadmium(II) salts. 1H-1,2,4-Triazole-3-thiol undergoes regioselective S-alkylation to form a series of S-substituted derivatives.
Properties of 1H-1,2,4-Triazole-3-thiol
| Melting point: | 221-224 °C(lit.) |
| Boiling point: | 132.6±23.0 °C(Predicted) |
| Density | 1.385 (estimate) |
| vapor pressure | 1.707-1.71Pa at 25℃ |
| refractive index | 1.5800 (estimate) |
| storage temp. | Inert atmosphere,Room Temperature |
| solubility | H2O: soluble50g/L |
| pka | 9.24±0.20(Predicted) |
| form | solid |
| color | White to Off-White |
| PH | 4.0 (85g/l, H2O, 20℃) |
| Water Solubility | Soluble in hot water. |
| BRN | 107731 |
| CAS DataBase Reference | 3179-31-5(CAS DataBase Reference) |
| EPA Substance Registry System | 3-Mercapto-1,2,4-triazole (3179-31-5) |
Safety information for 1H-1,2,4-Triazole-3-thiol
| Signal word | Warning |
| Pictogram(s) |
 Exclamation Mark Irritant GHS07 |
| GHS Hazard Statements |
H302:Acute toxicity,oral H319:Serious eye damage/eye irritation |
| Precautionary Statement Codes |
P264:Wash hands thoroughly after handling. P264:Wash skin thouroughly after handling. P270:Do not eat, drink or smoke when using this product. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P337+P313:IF eye irritation persists: Get medical advice/attention. |
Computed Descriptors for 1H-1,2,4-Triazole-3-thiol
| InChIKey | AFBBKYQYNPNMAT-UHFFFAOYSA-N |
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