3-Phenyl-[1,2,4]triazolo[4,3-a]pyrazine CAS 1201943-50-1
| CAS No. | 1201943-50-1 |
| Molecular Formula | C11H8N4 |
| Molecular Weight | 196.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Phenyl-[1,2,4]triazolo[4,3-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.
3-Phenyl-[1,2,4]triazolo[4,3-a]pyrazine (CAS 1201943-50-1), molecular formula C11H8N4 and molecular weight 196.21 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3-Phenyl-[1,2,4]triazolo[4,3-a]pyrazine (C11H8N4) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 10.0, corresponding to approximately 10 ring(s) or double-bond equivalent(s). With a molecular weight of 196.21 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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.
Physical & Chemical Properties
| Molecular Formula | C11H8N4 |
| Molecular Weight | 196.21 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1990 |
| Nitrogen Atoms | 4 |
Related Phenyl Standards
- 2-Phenyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 55643-77-1)
- 2-Phenyl-[1,2,4]triazolo[1,5-c]pyrimidine (CAS 74537-94-3)
- 6-Phenyl-[1,2,4]triazolo[4,3-b]pyridazine (CAS 55054-92-7)
- 7-Phenyl-[1,2,4]triazolo[1,5-a]pyrimidine (CAS 39573-72-3)
- 2-{[1,2,4]triazolo[1,5-a]pyrimidin-7-yl}pyridine (CAS 320416-38-4)
- 3-Phenyl-[1,2,4]triazolo[4,3-a]pyridine (CAS 778-65-4)
- 832-81-5 3-Phenyl[1,2,3]triazolo[1,5-a]pyridine DTXSID80324635 (CAS 832-81-5)
- 2-(7H-[1,2,4]triazolo[3,4-b][1,3,4]thiadiazin-6-yl)acetic acid (CAS 1017393-74-6)
Recommended Standards
- 3-(Pyridin-3-yl)-[1,2,4]triazolo[4,3-a]pyridine (CAS 118898-13-8)
- 1-(1h-1,2,3,4-Tetrazol-1-yl)cyclohexane-1-carboxylic acid (CAS 1206122-86-2)
- 1-(3,3,3-Trifluoropropyl)piperidin-4-amine (CAS 1187159-96-1)
- 3-(4-Nitro-1H-pyrazol-1-yl)piperidine (CAS 1211540-99-6)
- (17aR)-16,17-Bis(diphenylphosphino)-8,9-dihydro-7H-dinaphtho[2,3-f:2',3'-h][1,5]dioxonine (CAS 428877-98-9)
- 4-Chloro-N-ethyl-6-methylpyrimidin-2-amine (CAS 5748-33-4)
- tert-butyl N-(4-methyl-2-propyl-1,3-thiazol-5-yl)carbamate (CAS 1797012-32-8)
- tert-Butyl 4-chloro-5-iodo-7H-pyrrolo[2,3-d]pyrimidine-7-carboxylate (CAS 1244855-76-2)
- 2-Amino-N-(4-methylthiazol-2-yl)-2-phenylacetamide (CAS 888-47-1)
- (S)-2-Amino-N-(2,3-dichlorobenzyl)-3-methylbutanamide (CAS 1354019-09-2)
- Amlodipine Impurity 17 (CAS CATO-C4X-109517)
- 3-(3-Bromophenyl)-2,2-dimethylpropanoic acid (CAS 926625-06-1)
- (1R,3S,4R)-rel-Ethyl 1-azabicyclo[2.2.1]heptane-3-carboxylate (CAS 133366-43-5)
- Semaglutide impurity 198 (CAS CATO-C4X-2226198)
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