3,8-Dichloro-4,7-phenanthroline CAS 100500-10-5
| CAS No. | 100500-10-5 |
| Molecular Formula | C12H6Cl2N2 |
| Molecular Weight | 249.10 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3,8-Dichloro-4,7-phenanthroline (CAS 100500-10-5), molecular formula C12H6Cl2N2 and molecular weight 249.10 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 3,8-Dichloro-4,7-phenanthroline (C12H6Cl2N2) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. 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 249.10 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 | C12H6Cl2N2 |
| Molecular Weight | 249.10 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dichloro Standards
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- 4,5-Dichloro-6-morpholinopyrimidin-2-amine (CAS 1266378-68-0)
- (R)-4-(4,6-Dichloro-1,3,5-triazin-2-yl)-3-methylmorpholine (CAS 1382088-39-2)
- 5,6-Dichloro-2-phenylnicotinonitrile (CAS 1707609-52-6)
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Recommended Standards
- 2,4-D-Ethyl Ester (CAS 533-23-3)
- Linuron (CAS 330-55-2)
- 2-(Bromomethyl)naphthalene-6-carboxaldehyde (CAS 1019056-15-5)
- 2,4-DB (CAS 94-82-6)
- Imipramine EP Impurity B (CAS 303-54-8)
- 3,3-Bis(4-hydroxy-3-methoxyphenyl)isobenzofuran-1(3H)-one (CAS 467-25-4)
- 4-Bromo-6-chloroquinoline-3-carboxylic acid (CAS 1378254-90-0)
- 2-((4-Fluorophenyl)(methyl)amino)acetonitrile (CAS 864910-76-9)
- 1-(1-Phenylpropan-2-yl)azetidine-3-carboxylic acid (CAS 1477946-33-0)
- N-(3-chloro-4-fluorobenzyl)piperidin-4-amine dihydrochloride (CAS 1349717-73-2)
- (S)-2-amino-N-(4-fluorophenyl)-3-methylbutanamide (CAS 870533-29-2)
- 4-(Furan-2-carbonyl)-3-hydroxy-5-(4-iodophenyl)-1-(3-methoxypropyl)-1H-pyrrol-2(5H)-one (CAS 609797-02-6)
- Sphingolactone-24 (CAS 881177-99-7)
- Tirzepatide Impurity 49 (CAS CATO-C4X-324049)
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