2-(1H-Imidazol-5-yl)ethane-1-thiol CAS 20979-12-8
| CAS No. | 20979-12-8 |
| Molecular Formula | C5H8N2S |
| Molecular Weight | 128.20 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 2-(1H-Imidazol-5-yl)ethane-1-thiol is closely related to a nitrile group, sulfur-containing functionality in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
2-(1H-Imidazol-5-yl)ethane-1-thiol (CAS 20979-12-8) is a high-purity analytical reference standard with the molecular formula C5H8N2S and a molecular weight of 128.20 g/mol.
Based on its molecular formula C5H8N2S, 2-(1H-Imidazol-5-yl)ethane-1-thiol contains a nitrile group, sulfur-containing functionality; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 128.20 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 2-(1H-Imidazol-5-yl)ethane-1-thiol meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C5H8N2S |
| Molecular Weight | 128.20 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related H Standards
- 2-(1H-imidazol-2-yl)ethanethiol (CAS 111543-56-7)
- 1-(1H-Imidazol-4-yl)ethane-1,2-diol (CAS 112241-18-6)
- 2-((1H-Imidazol-4-yl)amino)ethanol (CAS 799814-23-6)
- 2-(1H-imidazol-2-yl)propan-2-ol (CAS 36365-23-8)
- 3-(1H-Imidazol-2-yl)propan-1-ol (CAS 1314965-15-5)
- 1-(1H-imidazol-2-yl)propan-1-ol (CAS 1315060-05-9)
- 2-(1H-imidazol-2-yl)propan-1-ol (CAS 1447317-08-9)
- 2-(1H-Imidazol-1-yl)propan-1-ol (CAS 191725-72-1)
Recommended Standards
- 2-(1,2-Thiazol-5-yl)ethan-1-amine (CAS 910388-16-8)
- 2-(4-Thiazolyl)ethanamine (CAS 7728-74-7)
- 1,5-dimethyl-2,3-dihydro-1H-imidazole-2-thione (CAS 35170-78-6)
- 2-(Aminomethyl)-4-methylthiazole (CAS 51221-45-5)
- tert-Butyl(4'-(aminomethyl)-[1,1'-biphenyl]-4-yl)carbamate (CAS 811842-12-3)
- (1R,2R)-N1-benzylcyclohexane-1,2-diamine (CAS 593284-14-1)
- 3-Chloro-5-(difluoromethoxy)picolinonitrile (CAS 1262860-73-0)
- 2-(4-tert-Butylphenyl)pyridine (CAS 524713-66-4)
- 3-((8-Chloroquinoxalin-5-yl)oxy)allyl acetate (CAS 724746-87-6)
- Boc-L-beta-glutamic Acid 5-Benzyl Ester (CAS 254101-10-5)
- 2-Methyl-4-(piperazin-1-yl)aniline (CAS 329943-78-4)
- (4-Acetamido-2-cyanophenyl)boronic acid (CAS 1186422-20-7)
- N-Benzyl-N-methylformamide (CAS 17105-71-4)
- (Ser(PO?H?)2?2)-Tau Peptide (260-264) PAb Blocking trifluoroacetate salt (CAS 2022956-57-4)
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