3H-1,2,4-Triazole-3-thione, 5-ethyl-1,2-dihydro- 7271-45-6 CTK2H2178 CAS 7271-45-6
| CAS No. | 7271-45-6 |
| Molecular Formula | C4H7N3S |
| Molecular Weight | 129.18 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
3H-1,2,4-Triazole-3-thione, 5-ethyl-1,2-dihydro- 7271-45-6 CTK2H2178 (CAS 7271-45-6) is a high-purity analytical reference standard with the molecular formula C4H7N3S and a molecular weight of 129.18 g/mol.
The molecular framework of 3H-1,2,4-Triazole-3-thione, 5-ethyl-1,2-dihydro- 7271-45-6 CTK2H2178 (C4H7N3S) is characterized by a nitrile group, sulfur-containing functionality. 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. 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).
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 | C4H7N3S |
| Molecular Weight | 129.18 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1959 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 1 |
Related H Standards
- 2-methyl-1,2,4-triazole-3-carboxamide (CAS 106535-35-7)
- 1H-1,2,3-triazole-5-carbothioamide (CAS 885280-96-6)
- 4h-1,2,4-Triazole-3-carbothioamide (CAS 3641-11-0)
- 1h-1,2,3-Triazole-4-carbohydrazide (CAS 24650-17-7)
- 1H-1,2,4-Triazole-3-carbohydrazide (CAS 21732-98-9)
- 1H-1,2,4-Triazole-3-carboxamide, 5-amino-5-amino-4H-1,2,4-triazole-3-carboxamide (CAS 60016-63-9)
- 2H-1,2,3-Triazole-2-acetic acid (CAS 4320-91-6)
- 1-Methyl-1,2,3-triazole-4-boronic acid (CAS 1564271-42-6)
Recommended Standards
- 406679-59-2 (O-~2~H)Benzoic acid DTXSID40514712 (CAS 406679-59-2)
- 790641-72-4 1-(4-Methyl-1,2,3-thiadiazol-5-yl)methanamine DTXSID60592830 (CAS 790641-72-4)
- o-(Thiophen-3-ylmethyl)hydroxylamine (CAS 89972-69-0)
- DL-Goitrin (CAS 13190-34-6)
- 5-Chloro-3-iodo-7-methyl-1H-pyrrolo[3,2-b]pyridine (CAS 1190310-96-3)
- 6-Methylisoxazolo[5,4-b]pyridin-3(2H)-one (CAS 178748-11-3)
- 2-(Isopropylamino)-2-oxoethyl 2-amino-3-methylbenzoate (CAS 930681-16-6)
- 2-amino-5-methyl-3,4-dihydroquinazolin-4-one (CAS 50440-84-1)
- (3,4-²H₂)furan-2-carboxylic acid (CAS 53599-38-5)
- Z-Leu-Glu(OMe)-Thr-DL-Asp(OMe)-fluoromethylketone (N-1975.0001) (CAS 1926163-60-1)
- 2-Cyclopropyl-3-(2-methyl-1h-imidazol-1-yl)-2-(methylamino)propanamide (CAS 1344206-07-0)
- 10234-92-1 4-[(4,5-dimethoxy-2-nitrophenyl)methylidene]-3-methyl-1-phenyl-4,5-dihydro-1H-pyrazol-5-one MS-9187 (CAS 10234-92-1)
- Methyl (2,4-difluorophenyl)carbamate (CAS 544440-09-7)
- Tirzepatide Impurity 26 X TFA Salt (CAS CATO-C4X-324026)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com