3-Methyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine dihydrochloride CAS 165894-23-5
| CAS No. | 165894-23-5 |
| Molecular Formula | C7H11N3 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-Methyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine dihydrochloride (CAS 165894-23-5), molecular formula C7H11N3HCl and molecular weight 173.64 g/mol, is a CATO reference standard with documented purity and traceability.
3-Methyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine dihydrochloride (C7H11N3HCl) contains a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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.
As a certified reference material (CRM), 3-Methyl-5,6,7,8-tetrahydroimidazo[1,5-a]pyrazine 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.
Physical & Chemical Properties
| Molecular Formula | C7H11N3 2*HCl |
| Molecular Weight | 173.64 g/mol |
| Appearance | 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) | 3.0 |
| UV Absorption | UV-absorbing |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Methyl Standards
- 2-Phenyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-6-carboxylic acid (CAS 1004620-20-5)
- 2-Phenyl-5,6,7,8-tetrahydroimidazo[1,2-a]pyridine-7-carboxylic acid (CAS 1004620-24-9)
- 5-Oxo-5,6,7,8-tetrahydroimidazo[1,5-c]pyrimidine-7-carbohydrazide (CAS 1008466-88-3)
- 4-(5,6,7,8-tetrahydroimidazo[1,5-a]pyridin-3-yl)aniline (CAS 1011566-35-0)
- 2-Oxo-1,2,3,4-tetrahydroimidazo[1,5-a]pyrimidine-8-carboxamide (CAS 101752-15-2)
- 4-(5,6,7,8-Tetrahydroimidazo[1,5-a]pyridin-5-yl)benzonitrile hydrochloride (CAS 102676-31-3)
- (5,6,7,8-Tetrahydroimidazo[1,2-a]pyridin-2-yl)methanol (CAS 1038827-92-7)
- 5,6,7,8-Tetrahydroimidazo[1,2-a]pyridine-2-carbaldehyde (CAS 1038827-93-8)
Recommended Standards
- (R)-4-(4-Chlorophenyl)butan-2-ol (CAS 39516-07-9)
- 2-(2-Methoxybenzo[b]thiophen-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 1218819-07-8)
- 2-Chloro-5-(2-fluorobenzoyl)pyridine (CAS 1187167-94-7)
- 2,3-Dihydrobenzofuran (CAS 496-16-2)
- (4-Iodophenyl)(isoquinolin-4-yl)methanone (CAS 1187165-73-6)
- Ethyl 4-bromo-1H-indazole-3-carboxylate (CAS 1220039-76-8)
- Indacaterol Impurity 2 (CAS 100331-89-3)
- N-hydroxy-5,7-dimethyl-pyrazolo[1,5-a]pyrimidine-3-carboxamidine (CAS 61552-51-0)
- 5-(Hydroxymethyl)-1-phenylpyrrolidine-2-thione (CAS 907563-44-4)
- Insulin Degludec Impurity 8 (CAS CATO-C4X-21578)
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