4,4'-Dipyridyl dihydrochloride CAS 27926-72-3
| CAS No. | 27926-72-3 |
| Molecular Formula | C10H8N2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4,4'-Dipyridyl dihydrochloride.
4,4'-Dipyridyl dihydrochloride (CAS 27926-72-3) is a high-purity analytical reference standard with the molecular formula C10H8N2HCl and a molecular weight of 192.65 g/mol.
4,4'-Dipyridyl dihydrochloride (C10H8N2HCl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
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 | C10H8N2 HCl |
| Molecular Weight | 192.65 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor) |
| 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1964 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Dipyridyl Standards
- Dipyridyl Carboxyl Chelator (as Ammonium Salt) (CAS 113749-54-5)
- Tris(2,2'-dipyridyl)ruthenium(II) hexachloroplumbate (CAS 115777-63-4)
- (2,2'-Dipyridyl)thioethylamine (CAS 1216888-52-6)
- 4,4′-Dipyridyl-d8 (CAS 132125-39-4)
- 2,2＇-Dipyridyl Disulfide (CAS 2127-03-9)
- 2，2＇-Dipyridyl-d8 (CAS 32190-42-4)
- 4,4'-Dipyridyl Sulfide (CAS 37968-97-1)
Recommended Standards
- 3-(1,5-Dimethyl-1h-pyrazol-4-yl)prop-2-en-1-ol (CAS 1563235-00-6)
- 7-Methyl-[1,2,4]triazolo[4,3-a]pyrimidin-3-amine (CAS 117888-93-4)
- 4,6-Dichloro-n,n,5-trimethylpyrimidin-2-amine (CAS 61770-00-1)
- Cycloocta-2,5-dien-1-ol (CAS 10054-74-7)
- 3-Amino-N-(tert-butyl)-2-fluorobenzenesulfonamide (CAS 2600448-22-2)
- cis-4-[2-(4-Iodophenyl)-2-oxoethyl]-cyclohexane-1-carboxylic acid (CAS 735275-67-9)
- 1-(4-(Aminomethyl)piperidin-1-yl)-2-(thiophen-2-yl)ethan-1-one (CAS 1605623-50-4)
- (4S,4'S)-2,2'-(((3,5-Di-tert-butyl-4-methoxyphenyl)phosphinediyl)bis(2,1-phenylene))bis(4-(tert-butyl)-4,5-dihydrooxazole) (CAS 2583673-76-9)
- 3-Fluoro-4-nitropyridin-1(2H)-ol (CAS 733758-54-8)
- Pancreatic Polypeptide (1-17)-(Ala31,Aib32)-Neuropeptide Y (18-36) (human) trifluoroacetate salt (CAS 313988-70-4)
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