5-Cyclopropyl-[1,3,4]oxadiazole-2-thiol CAS 64007-54-1
| CAS No. | 64007-54-1 |
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 5-Cyclopropyl-[1,3,4]oxadiazole-2-thiol is closely related to an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
5-Cyclopropyl-[1,3,4]oxadiazole-2-thiol (CAS 64007-54-1), molecular formula C5H6N2OS and molecular weight 142.18 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 5-Cyclopropyl-[1,3,4]oxadiazole-2-thiol (C5H6N2OS) is characterized by an amide group, sulfur-containing functionality, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
Physical & Chemical Properties
| Molecular Formula | C5H6N2OS |
| Molecular Weight | 142.18 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) | 4.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1975 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Cyclopropyl Standards
- 1-cyclopropyl-1H-tetrazole-5-thiol (CAS 637781-10-3)
- 3-cyclopropyl-3-methylbutanoic acid (CAS 1021939-05-8)
- 3-Cyclopropyl-2,2-dimethylpropanoic acid (CAS 131469-76-6)
- 1-Cyclopropyl-3-ethynylbenzene (CAS 1378654-62-6)
- 3-Cyclopropyl-2-methylbutanoic acid (CAS 1485998-80-8)
- 2-Cyclopropyl-2-methylbutanoic acid (CAS 1545135-09-8)
- 2-cyclopropyl-1-(oxiran-2-yl)propan-2-ol (CAS 2060048-60-2)
- Cyclopropyl(3-methyloxetan-3-yl)methanol (CAS 2090434-10-7)
Recommended Standards
- 5-Aminothiophene-3-carboxamide (CAS 760930-70-9)
- 5-Ethyl-1,3,4-thiadiazole-2-carbaldehyde (CAS 2044797-24-0)
- 5-Aminothiophene-2-carboxamide (CAS 763068-76-4)
- 5-formylthiazole-2-carbonitrile (CAS 2090886-23-8)
- 2-(1-Ethyl-1h-imidazol-5-yl)ethan-1-ol (CAS 1462859-49-9)
- CHIR 124 (CAS 405168-58-3)
- 2-methylfuran-3-carbonitrile (CAS 22727-21-5)
- 5-(Difluoromethyl)nicotinaldehyde (CAS 1211583-76-4)
- 4-(3-Aminophenyl)-N,N-dimethylthiazol-2-amine (CAS 1281363-96-9)
- (1R,3r)-3-amino-3-(4-bromophenyl)cyclobutan-1-ol hydrochloride (CAS 2094031-82-8)
- 1,2-Dinitro-4,5-methylenedioxybenzene (CAS 7748-59-6)
- 3-Deoxysappanchalcone (CAS 112408-67-0)
- 4-(1,1-Difluoroethyl)benzenethiol (CAS 1892499-40-9)
- Semaglutide impurity 51 (CAS CATO-C4X-222651)
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