5H-Pyrrolo[2,1-c][1,2,4]triazol-7(6H)-one CAS 1707672-79-4
| CAS No. | 1707672-79-4 |
| Molecular Formula | C5H5N3O |
| Molecular Weight | 123.11 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.
5H-Pyrrolo[2,1-c][1,2,4]triazol-7(6H)-one (CAS 1707672-79-4), molecular formula C5H5N3O and molecular weight 123.11 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, 5H-Pyrrolo[2,1-c][1,2,4]triazol-7(6H)-one is typically off-white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 123.11 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
As a certified reference material (CRM), 5H-Pyrrolo[2,1-c][1,2,4]triazol-7(6H)-one 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 | C5H5N3O |
| Molecular Weight | 123.11 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) | 5.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1994 |
| Nitrogen Atoms | 3 |
Related H Standards
- 2H-Pyrrolo[1,2-a]imidazol-5(3H)-one (CAS 95897-41-9)
- 2H-Pyrrolo[1,2-e][1,2,5]oxadiazine (CAS 43090-03-5)
- 4H-Pyrrolo[1,2-b]pyrazol-5(6H)-one (CAS 2092701-92-1)
- 2H-Pyrrolo[2,3-d]thiazole (CAS 72332-79-7)
- 2H-Pyrrolo[3,4-d]thiazole (CAS 72332-80-0)
- 4H-Pyrrolo[2,3-d]thiazole (CAS 298699-45-3)
- 4H-Pyrrolo[3,2-d]thiazole (CAS 59839-75-7)
- 2H-Pyrrolo[2,3-d][1,2,3]thiadiazole (CAS 500722-43-0)
Recommended Standards
- 2-Methyl-5-oxo-2,5-dihydro-1H-pyrazole-3-carbonitrile (CAS 1692905-38-6)
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- 2-Aminopyrimidine-4-carbaldehyde (CAS 165807-06-7)
- 3-Hydroxypyridine-2-carbaldehyde (CAS 1849-55-4)
- N-(2-(1-Acetyl-5-(4-ethoxyphenyl)-4,5-dihydro-1H-pyrazol-3-yl)phenyl)methanesulfonamide (CAS 923686-09-3)
- (S)-1-((R)-1-(3,5-bis(trifluoromethyl)phenyl)ethoxy)-2-phenylbut-3-en-2-amine (CAS 1214741-13-5)
- 4-Acetoxy-2-iodobenzophenone (CAS 890099-48-6)
- Ethyl 6-bromo-3-methyl-2,7-dioxo-3,7-dihydro-2H-naphtho[1,2,3-de]quinoline-1-carboxylate (CAS 71205-38-4)
- 3,5-Diiodo-4-methylbenzene-1,2-diamine (CAS 2454543-39-4)
- (R)-2-(2-Chloroacetamido)propanoic acid (CAS 67206-15-9)
- 6-Acetyl-3-chloropyridin-2(1H)-one (CAS 1393539-12-2)
- 3-Benzyl-6-chloro-5-cyclopropylpyrimidine-2,4(1H,3H)-dione (CAS 2294229-94-8)
- N-(3-acetylphenyl)isobutyramide (CAS 80945-16-0)
- (Gly1,Ser3·22,Gln?·3?,Thr?,Arg1?,Tyr21,Ala23·31,Aib32)-Pancreatic Polypeptide (human) (CAS 313988-89-5)
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