2-Chloroisonicotinohydrazide CAS 58481-04-2
| CAS No. | 58481-04-2 |
| Molecular Formula | C6H6ClN3O |
| Molecular Weight | 171.58 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 171.58 g/mol gives 2-Chloroisonicotinohydrazide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
2-Chloroisonicotinohydrazide (CAS 58481-04-2), molecular formula C6H6ClN3O and molecular weight 171.58 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, an aromatic ring system, 2-Chloroisonicotinohydrazide is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.58 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
As a certified reference material (CRM), 2-Chloroisonicotinohydrazide 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 | C6H6ClN3O |
| Molecular Weight | 171.58 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Recommended Standards
- 2-Chloro-6-methylpyrimidine-4-carboxamide (CAS 64376-16-5)
- 2-Chloro-N-hydroxyisonicotinimidamide (CAS 857653-85-1)
- 2-Chloro-6-methylpyridine-3-carboxylic Acid (CAS 30529-70-5)
- 2-Chloro-N-hydroxynicotinimidamide (CAS 468068-58-8)
- methyl 4-amino-6-methylpyrimidine-2-carboxylate (CAS 1520279-43-9)
- 2-Propenoic acid, 2-methyl-, 2-(dimethylamino)ethyl ester, polymer with methyl 2-methyl-2-propenoate and methyl 2-propenoate (CAS 50862-66-3)
- N,N-Dimethyl-1H-benzo[d]imidazol-4-amine (CAS 476689-97-1)
- 2-(5-Bromo-2-fluorophenyl)ethanethioamide (CAS 1016747-07-1)
- (2-Amino-3-fluorophenyl)dimethylphosphine oxide (CAS 1263178-21-7)
- (E)-4-Chlorobut-2-en-1-ol (CAS 1775-39-9)
- 2-(Furan-2-yl)-1h-1,3-benzodiazol-5-amine dihydrochloride (CAS 471270-88-9)
- 7114-80-9 3-methylisoquinolin-1(2H)-one DTXSID70390546 (CAS 7114-80-9)
- UR-144 Degradant (CAS 1609273-88-2)
- Urotensin II-Related Peptide (human, mouse, rat) (CAS 342878-90-4)
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