5-Methyl-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidine dihydrochloride CAS 871726-41-9
| CAS No. | 871726-41-9 |
| Molecular Formula | C7H9N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Methyl-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidine dihydrochloride 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.
5-Methyl-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidine dihydrochloride (CAS 871726-41-9) is a high-purity analytical reference standard with the molecular formula C7H9N3HCl and a molecular weight of 171.63 g/mol.
Owing to a nitrile group, chlorine substitution, an aromatic ring system, 5-Methyl-6,7-dihydro-5H-pyrrolo[3,4-d]pyrimidine dihydrochloride is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 171.63 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.
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.
Physical & Chemical Properties
| Molecular Formula | C7H9N3 2*HCl |
| Molecular Weight | 171.63 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) | 4.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 3-(3,6-Dihydro-2h-pyran-4-yl)benzoic acid (CAS 1000016-95-4)
- 1,7-Dihydro-dipyrrolo[2,3-b:3',2'-e]pyridine (CAS 1000342-79-9)
- Methyl 9,10-Dihydro-9-oxoacridine-4-carboxylate (CAS 100039-03-0)
- 3-(3,4-Dihydro-2h-benzo[b][1,4]dioxepin-7-yl)propan-1-ol (CAS 1000540-71-5)
- 2,5-Dihydro-1-(2-nitrophenyl)-5-oxo-1H-1,2,4-triazole-3-carboxylic acid dimethylamide (CAS 1000574-24-2)
- 5-(1,2-Dihydro-[1,1':4',1''-terphenyl]-2-yl)-3H-1,2,4-triazol-3-one (CAS 1000575-71-2)
- Ethyl 2,5-dihydro-5-oxo-1-[3-(trifluoromethyl)phenyl]-1H-1,2,4-triazole-3-carboxylate (CAS 1000576-65-7)
- 2,5-Dihydro-5-oxo-1-phenyl-1H-1,2,4-triazole-3-carboxylic acid (2-chlorophenyl)amide (CAS 1000576-93-1)
Recommended Standards
- 6-(2,2,2-Trifluoroethyl)thieno[2,3-d]pyrimidine-4-carbonitrile (CAS 2055107-61-2)
- 3-Bromoacridin-9(10H)-one (CAS 1140-92-7)
- β-Alanine Hydroiodide (Low water content) (CAS 2096495-59-7)
- 8-Methyl-2-phenylquinoline-4-carbonyl chloride (CAS 854863-92-6)
- 1-Bromo-3-[(propan-2-yloxy)methyl]benzene (CAS 1247851-10-0)
- 2-(Pyridin-2-ylmethylene)indolin-3-one (CAS 118860-71-2)
- N'-(4-Methoxybenzylidene)-4-oxo-3,4-dihydroquinazoline-2-carbohydrazide (CAS 129302-00-7)
- 2-benzylimidazo[1,2-a]pyridine (CAS 889813-26-7)
- 3,4-Dimethyl-2(5H)-furanone (CAS 1575-46-8)
- Semaglutide Impurity 123 (CAS 71997-93-8)
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