1-(pyridin-2-yl)-1H-pyrazol-3-ol CAS 126583-32-2
| CAS No. | 126583-32-2 |
| Molecular Formula | C8H7N3O |
| Molecular Weight | 161.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 161.16 g/mol gives 1-(pyridin-2-yl)-1H-pyrazol-3-ol distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
1-(pyridin-2-yl)-1H-pyrazol-3-ol (CAS 126583-32-2), molecular formula C8H7N3O and molecular weight 161.16 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 1-(pyridin-2-yl)-1H-pyrazol-3-ol is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 161.16 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 1-(pyridin-2-yl)-1H-pyrazol-3-ol under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C8H7N3O |
| Molecular Weight | 161.16 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | 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.) | 1993 |
| Nitrogen Atoms | 3 |
Related pyridin Standards
- 3-(Pyridin-4-yl)-1H-pyrazol-5(4H)-one (CAS 101421-76-5)
- 5-(Pyridin-2-yl)oxazol-2-amine (CAS 1014629-81-2)
- 5-(Pyridin-3-yl)oxazol-2-amine (CAS 1014629-82-3)
- 5-(Pyridin-4-yl)oxazol-2-amine (CAS 1014629-83-4)
- 5-Methyl-3-(pyridin-3-yl)-1,2,4-oxadiazole (CAS 10350-69-3)
- 1-(Pyridin-2-yl)-1h-1,2,4-triazol-5-amine (CAS 1247628-46-1)
- 1-(Pyridin-4-yl)-1h-1,2,4-triazol-3-amine (CAS 1248663-31-1)
- 1-(Pyridin-4-yl)-1h-1,2,4-triazol-5-amine (CAS 1250282-04-2)
Recommended Standards
- 6-Methylpyrazolo[1,5-a]pyrimidine-3-carbaldehyde (CAS 1263059-02-4)
- 3-Methyl-1h,2h-pyrido[2,3-b]pyrazin-2-one (CAS 128102-81-8)
- 5-(Furan-2-yl)pyridin-3-ol (CAS 1261971-03-2)
- Quinoline-6,7-diol (CAS 128133-82-4)
- 4-(tert-Butoxycarbonyl(4-methoxybenzyl)amino)butanoic acid (CAS 947661-79-2)
- N,N-Diethyl-2-((3-(4-methoxyphenyl)-4-oxo-3,4,5,6,7,8-hexahydrobenzo[4,5]thieno[2,3-d]pyrimidin-2-yl)thio)acetamide (CAS 384370-03-0)
- 6-Nitrobenzo[c][1,2]oxaborol-1(3H)-ol (CAS 118803-40-0)
- 5-Bromo-3-(N-methylaminocarbonyl)phenylboronic acid (CAS 2121515-18-0)
- 5-((3,4-Dimethylphenoxy)methyl)-4-ethyl-4H-1,2,4-triazole-3-thiol (CAS 588673-94-3)
- 5,8-Dimethoxy-2-methyl-1-(2-oxopropyl)quinolin-4(1H)-one (CAS 1209688-77-6)
- Opicapone Impurity 44 (CAS CATO-C4X-240444)
- (S)-1-(4-Chloro-3-fluorophenyl)ethanamine (CAS 1114559-11-3)
- 6-Amino-3-bromopicolinaldehyde (CAS 1227604-02-5)
- 69558-55-0 O3Y80ZF13F Thymopentin Thymopentin [USAN:INN:BAN] L-Tyrosine, N-(N-(N-(N2-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- L-Tyrosine, N-(N-(N-(N(sup 2)-L-arginyl-L-lysyl)-L-alpha-aspartyl)-L-valyl)- Thymopentine [French] Thymopentinum [Latin] Timopentina [Spanish] Thymopoietin 32-36 TP-5 Thymopoietin pentapeptide ORF-15244 Thymopentine Thymopentinum Timopentina ORF 15244 UNII-O3Y80ZF13F (CAS 69558-55-0)
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