5,6,7,8-Tetrahydro-1,2,4-triazolo[1,5-a]pyrazine CAS 233278-56-3
| CAS No. | 233278-56-3 |
| Molecular Formula | C5H8N4 |
| Molecular Weight | 124.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
5,6,7,8-Tetrahydro-1,2,4-triazolo[1,5-a]pyrazine (CAS 233278-56-3), molecular formula C5H8N4 and molecular weight 124.14 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5,6,7,8-Tetrahydro-1,2,4-triazolo[1,5-a]pyrazine (C5H8N4) contains a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 124.14 g/mol, it falls into the low-molecular-weight range. 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).
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 5,6,7,8-Tetrahydro-1,2,4-triazolo[1,5-a]pyrazine 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 | C5H8N4 |
| Molecular Weight | 124.14 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.) | 2023 |
| Nitrogen Atoms | 4 |
Related Tetrahydro Standards
- 4,5,6,7-Tetrahydro-1,2,3-triazolo[1,5-a]pyrazine (CAS 123291-54-3)
- 4,5,6,7-Tetrahydro-2H-[1,2,3]triazolo[4,5-c]pyridine (CAS 933715-70-9)
- 5,6,7,8-tetrahydro-[1,2,4]triazolo[1,5-b]pyridazine (CAS 51519-58-5)
- 5,6,7,8-Tetrahydro-[1,2,4]triazolo[4,3-b]pyridazine (CAS 54760-48-4)
- 5,6,7,8-Tetrahydro-1,2,4-triazolo[4,3-a]pyrazine (CAS 345311-09-3)
- (S)-Tetrahydro-1H-pyrrolizin-3(2H)-imine (CAS 179685-47-3)
- (±)-Tetrahydro-2-furoic-d7 Acid (CAS 1219798-42-1)
- 4,5,6,7-tetrahydro-1H-1,2,3-benzotriazole (CAS 6789-99-7)
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- 5-Bromo-2-(1-p-tolyl-1H-pyrazol-5-yl)phenol (CAS 1202029-99-9)
- Ethyl 3-aminofuro[2,3-c]pyridine-2-carboxylate (CAS 927804-72-6)
- 1-Ethyl-4-iodo-3-methoxy-1H-pyrazole (CAS 2739875-35-3)
- C-Peptide 2 (rat) (CAS 41594-08-5)
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