6-Chloro-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-ol CAS 478077-86-0
| CAS No. | 478077-86-0 |
| Molecular Formula | C8H8ClN3O |
| Molecular Weight | 197.62 g/mol |
| 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 6-Chloro-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-ol (CAS 478077-86-0), a certified reference material (molecular formula C8H8ClN3O, MW 197.62 g/mol) for analytical method development and quality control.
Based on its molecular formula C8H8ClN3O, 6-Chloro-2,5-dimethylpyrazolo[1,5-a]pyrimidin-7-ol contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 197.62 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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).
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 | C8H8ClN3O |
| Molecular Weight | 197.62 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chloro Standards
- 1-((4-Chloro-1H-pyrazol-1-yl)methyl)-1H-pyrazol-3-amine (CAS 1006472-82-7)
- 2-(4-Chloro-3-methyl-phenoxy)-butyric acid (CAS 1006483-33-5)
- 2-(6-Chloro-9h-purin-9-yl)ethan-1-amine (CAS 100690-26-4)
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Recommended Standards
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- 6-Chloro-1,1-dimethylfuro[3,4-c]pyridin-3(1H)-one (CAS 676634-58-5)
- 6-Chloro-2-methyl-2,4-dihydro-1,4-benzoxazin-3-one (CAS 5791-00-4)
- 2-(Benzyloxy)-5-chlorobenzoyl chloride (CAS 41220-63-7)
- Ethyl (E)-(3-(furan-2-yl)acryloyl)glycinate (CAS 103972-52-7)
- 6-Oxo-1,6-dihydro-[2,3'-bipyridine]-5-carbaldehyde (CAS 1710292-79-7)
- 1-(4-Nitro-phenyl)-4-trifluoromethyl-piperidine (CAS 1159984-44-7)
- Sodium; 4-methyl-[1,2,3]thiadiazole-5-thiolate (CAS 82219-82-7)
- 3-(Hydroxymethyl)phenethyl furan-3-carboxylate (CAS 61761-78-2)
- 3-Cyano-1H-indole-4-carboxylic acid (CAS 889942-85-2)
- 2-(1-Benzofuran-2-yl)acetonitrile (CAS 95-28-3)
- (R)-2-amino-2-(2-chloro-3-methoxyphenyl)ethan-1-ol (CAS 1213057-19-2)
- Heme iron polypeptide(Hematin) (CAS 14875-96-8)
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