2-Aminopyridine 1-oxide hydrochloride CAS 57097-28-6
| CAS No. | 57097-28-6 |
| Molecular Formula | C5H6N2O |
| Molecular Weight | N/A |
| 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.
CATO supplies 2-Aminopyridine 1-oxide hydrochloride (CAS 57097-28-6), a certified reference material (molecular formula C5H6N2OHCl, MW 146.57 g/mol) for analytical method development and quality control.
Owing to an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 2-Aminopyridine 1-oxide hydrochloride is typically white to pale yellow liquid. Its solid-state physicochemical attributes — including a molecular weight of 146.57 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.
As a certified reference material (CRM), 2-Aminopyridine 1-oxide hydrochloride 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 | C5H6N2O HCl |
| Molecular Weight | 146.57 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 1973 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Aminopyridine Standards
- 4-Aminopyridine-2-carboxylic Acid (CAS 100047-36-7)
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- 6-Aminopyridine-2-boronic acid pinacol ester, 97% (CAS 1032758-22-7)
- 6-Aminopyridine-2,4-diol (CAS 104767-38-6)
- 2-Aminopyridine-3-boronic acid pinacol ester, 97% (CAS 1073354-97-8)
- 6-Aminopyridine-2-sulfonic acid (CAS 109682-22-6)
- 1,1'-(3-Aminopyridine-2,6-diyl)bis(ethan-1-one) (CAS 1135370-81-8)
Recommended Standards
- 6-Methyl-3-(2-thienyl)-1,2,4-triazin-5-ol (CAS 886360-71-0)
- Methyl 21-hydroxyhenicosanoate (CAS 94035-98-0)
- Chloromethyl(dimethyl)methoxysilane (CAS 18143-33-4)
- 4-(4-Boc-Piperazino)-2-chlorophenylboronic acid (CAS 2377608-54-1)
- tert-Butyl 6-oxa-3-azabicyclo[3.1.1]heptane-3-carboxylate (CAS 1305208-01-8)
- Pyrido[2,3-d]pyrimidine (CAS 254-61-5)
- (S)-4-benzylmorpholine-3-carboxamide (CAS 2165528-47-0)
- 2-Chloro-1-(4-(methoxymethyl)piperidin-1-yl)ethan-1-one (CAS 1339473-49-2)
- 3,4-Dichlorothiophene-2-sulfonyl chloride (CAS 439898-68-7)
- Semaglutide impurity 99 (CAS CATO-C4X-222699)
Why CATO?
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