1,3-Dimethyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one CAS 51222-27-6
| CAS No. | 51222-27-6 |
| Molecular Formula | C7H8N4O |
| Molecular Weight | 164.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 1,3-Dimethyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one 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.
1,3-Dimethyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one (CAS 51222-27-6) is a high-purity analytical reference standard with the molecular formula C7H8N4O and a molecular weight of 164.16 g/mol.
Owing to an amide group, a hydroxyl group, an ether linkage, an aromatic ring system, 1,3-Dimethyl-1,6-dihydro-7H-pyrazolo[4,3-d]pyrimidin-7-one is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 164.16 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.
Physical & Chemical Properties
| Molecular Formula | C7H8N4O |
| Molecular Weight | 164.16 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1971 |
| Nitrogen Atoms | 4 |
Related Dimethyl Standards
- 5,6-Dimethyl-1H-pyrazolo[3,4-b]pyrazin-3-ol (CAS 114794-30-8)
- 3-(3,5-dimethyl-1H-pyrazol-4-yl)prop-2-ynoic acid (CAS 1351382-56-3)
- 3-(1,3-Dimethyl-1H-pyrazol-5-yl)propiolic acid (CAS 1351382-57-4)
- 2,7-Dimethyl-1H-purin-6(7H)-one (CAS 1713477-43-0)
- 1,3-Dimethyl-1H-pyrazolo[3,4-d]pyridazin-7-ol (CAS 1909337-15-0)
- 3,7-Dimethyl-3H-purin-6(7H)-one (CAS 19143-59-0)
- 1,3-Dimethyl-1H-pyrazolo[3,4-d]pyridazin-4(5H)-one (CAS 96017-43-5)
- 1,3-Dimethyl-1H-pyrazolo[3,4-d]pyrimidin-4(5H)-one (CAS 87412-86-0)
Recommended Standards
- 1,3-Dihydroisobenzofuran-5-carboxylic acid (CAS 933694-57-6)
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- 1,3-Dimethyl-1H-pyrazolo[4,3-d]pyrimidin-7(7aH)-one (CAS 89239-17-8)
- Ethyl 3-amino-1H-pyrrolo[3,2-c]pyridine-2-carboxylate (CAS 181284-32-2)
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