4,4'-(5'-(4-(1H-Pyrazol-4-yl)phenyl)-[1,1':3',1''-terphenyl]-4,4''-diyl)bis(1H-pyrazole) CAS 1855846-73-9
| CAS No. | 1855846-73-9 |
| Molecular Formula | C33H24N6 |
| Molecular Weight | 504.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
4,4'-(5'-(4-(1H-Pyrazol-4-yl)phenyl)-[1,1':3',1''-terphenyl]-4,4''-diyl)bis(1H-pyrazole) (CAS 1855846-73-9), molecular formula C33H24N6 and molecular weight 504.58 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4,4'-(5'-(4-(1H-Pyrazol-4-yl)phenyl)-[1,1':3',1''-terphenyl]-4,4''-diyl)bis(1H-pyrazole) (C33H24N6) contains a nitrogen-containing heterocyclic scaffold, a nitrile group. The molecule exhibits a degree of unsaturation (DBE) of 25.0, corresponding to approximately 25 ring(s) or double-bond equivalent(s). With a molecular weight of 504.58 g/mol, it falls into the moderately-high-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.
CATO manufactures 4,4'-(5'-(4-(1H-Pyrazol-4-yl)phenyl)-[1,1':3',1''-terphenyl]-4,4''-diyl)bis(1H-pyrazole) under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C33H24N6 |
| Molecular Weight | 504.58 g/mol |
| Appearance | Pale yellow to yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 25.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1995 |
| Nitrogen Atoms | 6 |
Related H Standards
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Recommended Standards
- (4S,4′S)-4,4′,5,5′-Tetrahydro-2,2′-bis[2-(phenylmethoxy)phenyl]-4,4′-bioxazole (CAS 1445949-45-0)
- (4S,4′S)-2,2′-(5,5′-Dimethoxy[1,1′-biphenyl]-2,2′-diyl)bis[4,5-dihydro-4-phenyloxazole] (CAS 944133-17-9)
- 1,1'-(5'-(4-(1H-Imidazol-1-yl)phenyl)-[1,1':3',1''-terphenyl]-4,4''-diyl)bis(1H-imidazole) (CAS 1386857-85-7)
- 1,3,5-Triazine-2,4,6(1H,3H,5H)-trione, 1,3,5-tris(6-isocyanatohexyl)- (CAS 3779-63-3)
- 1-(4-Chloro-3-nitrophenyl)-3-(2,3-dihydro-1H-inden-2-yl)urea (CAS 680212-00-4)
- 4-Bromo-a-phenylbenzenemethanol-d5 (CAS 213678-51-4)
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- (1-(Benzyloxy)cyclopropyl)methanol (CAS 1401909-11-2)
- 4-(trans-4-Amylcyclohexyl)phenol (CAS 82575-69-7)
- Lisinopril EP Impurity C (CAS 328385-86-0)
- 139277-58-0 2-(4-phenylphenyl)acetohydrazide 2-(4-phenylphenyl)ethanehydrazide 2-biphenyl-4-ylacetohydrazide(saltdata: free) 4-biphenylacetic acid hydrazide 4-biphenylacetic hydrazide akos b015277 art-chem-bb b015277 chembrdg-bb 3015277 (CAS 139277-58-0)
- 3-(2,4-Dichlorophenyl)-2-methoxy-5-(phenylthio)furan (CAS 941270-41-3)
- Semaglutide impurity 87 (CAS CATO-C4X-222687)
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