4-Chloro-2,6-diphenylpyrimidine CAS 29509-91-9
| CAS No. | 29509-91-9 |
| Molecular Formula | C16H11ClN2 |
| Molecular Weight | 266.72 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
4-Chloro-2,6-diphenylpyrimidine (CAS 29509-91-9), molecular formula C16H11ClN2 and molecular weight 266.72 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 4-Chloro-2,6-diphenylpyrimidine (C16H11ClN2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 12.0, corresponding to approximately 12 ring(s) or double-bond equivalent(s). With a molecular weight of 266.72 g/mol, it falls into the medium-molecular-weight range. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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.
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 | C16H11ClN2 |
| Molecular Weight | 266.72 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 2-Chloro-n-[3-(2-oxopyrrolidin-1-yl)phenyl]propanamide (CAS 1087784-11-9)
- 2-(2-Chloro-5-methylphenoxy)-N-(2-cyanoethyl)-N-methylacetamide (CAS 1095168-21-0)
- 2-chloro-N-[4-(2-oxopyrrolidin-1-yl)phenyl]propanamide (CAS 1098347-65-9)
- 2-((3-Chloro-4-methoxyphenyl)amino)-N-(prop-2-yn-1-yl)propanamide (CAS 1132809-00-7)
- N-(2-Chloro-6-(3-hydroxyprop-1-yn-1-yl)pyridin-3-yl)pivalamide (CAS 1142192-04-8)
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Recommended Standards
- 4-(2-Chloropropanoyl)-3,3-dimethyl-1,2,3,4-tetrahydroquinoxalin-2-one (CAS 879319-10-5)
- 4-Chloro-3,6-diphenylpyridazine (CAS 59166-26-6)
- 3-Chloro-n-[4-(2-oxopyrrolidin-1-yl)phenyl]propanamide (CAS 923207-68-5)
- 4-Chloro-6-phenyl-2,4'-bipyridine (CAS 439929-26-7)
- 4-(Benzo[d][1,3]dioxol-5-ylmethyl)-N-(4-cyanophenyl)piperazine-1-carbothioamide (CAS 497060-95-4)
- 4-[(Propane-2-sulfonyl)methyl]aniline (CAS 635702-61-3)
- Ethyl 1-Trifluoromethylcyclopropanecarboxylate (CAS 139229-57-5)
- 2-((S)-((R)-2-Methyl-1-(propionyloxy)propoxy)(4-phenylbutyl)phosphoryl)acetic acid (CAS 128948-01-6)
- Progesterone Impurity 45 (CAS CATO-C4X-150245)
- Mifepristone-D6 (CAS 1228097-18-4)
- 6-methoxy DMT (CAS 2426-88-2)
- methyl 2-amino-3-cyclobutylpropanoate hydrochloride (CAS 1520072-58-5)
- (2Z)-3-(2-{[(4-chlorophenyl)methyl]sulfanyl}quinolin-3-yl)-2-phenylprop-2-enenitrile (CAS 478065-17-7)
- Semaglutide impurity 211 (CAS CATO-C4X-2226211)
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