5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-amine,HCl CAS 1198-79-4
| CAS No. | 1198-79-4 |
| Molecular Formula | C8H10N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-amine,HCl (CAS 1198-79-4), molecular formula C8H10N4HCl and molecular weight 198.65 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H10N4HCl, 5,7-dimethylpyrazolo[1,5-a]pyrimidin-2-amine,HCl contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 198.65 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 | C8H10N4 HCl |
| Molecular Weight | 198.65 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related dimethylpyrazolo Standards
- 2,5-Dimethylpyrazolo[1,5-a]pyrimidine-7-carboxylic acid (CAS 1011355-87-5)
- 5,6-Dimethylpyrazolo[1,5-a]pyrimidin-2(1H)-one (CAS 101259-15-8)
- 2,7-Dimethylpyrazolo[1,5-a]pyrimidine-5-carboxylic acid (CAS 1015846-86-2)
- (5,7-Dimethylpyrazolo[1,5-a]pyrimidine-3-carbonyl)glycine (CAS 1094463-86-1)
- 2-(1-{2,7-dimethylpyrazolo[1,5-a]pyrimidin-6-yl}-N-methylformamido)acetic acid (CAS 1098389-14-0)
- 5,7-Dimethylpyrazolo[1,5-a]pyrimidine-3-carbonyl chloride (CAS 114040-07-2)
- N-(1,3-dimethylpyrazolo[3,4-b]pyridin-5-yl)prop-2-enamide (CAS 1153933-41-5)
- 4,6-Dimethylpyrazolo[1,5-a]pyridine-3-carboxylic acid (CAS 1167055-31-3)
Recommended Standards
- 1-(Tert-butoxycarbonyl)-3-methoxy-2-methylazetidine-3-carboxylic acid (CAS 2173413-22-2)
- Phenylpyruvic Acid (CAS 156-06-9)
- 3-(3-Hydroxypiperidin-1-yl)pyrazin-2(1H)-one (CAS 1594729-26-6)
- Atropine Impurity 55 (CAS CATO-C4X-148955)
- (R)-4-(3-Bromophenyl)-6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinoline (CAS 2200552-24-3)
- 5-Bromo-2-(2,5-dimethyl-1H-pyrrol-1-yl)thiazole (CAS 918792-84-4)
- 5-Methoxy-2-(trifluoromethyl)-1H-indole (CAS 174734-34-0)
- Netupitant Impurity 31 (CAS 1444338-30-0)
- 7-Bromo-4-[(3-bromophenyl)methyl]-2,3,4,5-tetrahydro-1,4-benzoxazepin-3-one (CAS 1326883-04-8)
- Acetyl-Exenatide trifluoroacetate salt (CAS 305815-28-5)
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