5,6,7,8-Tetrahydroquinazoline-2,6-diamine dihydrochloride CAS 2098025-36-4
| CAS No. | 2098025-36-4 |
| Molecular Formula | C8H12N4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 200.67 g/mol gives 5,6,7,8-Tetrahydroquinazoline-2,6-diamine dihydrochloride distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
5,6,7,8-Tetrahydroquinazoline-2,6-diamine dihydrochloride (CAS 2098025-36-4), molecular formula C8H12N4HCl and molecular weight 200.67 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 5,6,7,8-Tetrahydroquinazoline-2,6-diamine dihydrochloride (C8H12N4HCl) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 4.0, corresponding to approximately 4 ring(s) or double-bond equivalent(s). With a molecular weight of 200.67 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C8H12N4 2*HCl |
| Molecular Weight | 200.67 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.) | 1997 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
Related Tetrahydroquinazoline Standards
- 2-Phenyl-5,6,7,8-tetrahydroquinazoline (CAS 100869-87-2)
- 4-Methyl-5,6,7,8-tetrahydroquinazoline (CAS 103796-40-3)
- 2-Phenyl-5,6,7,8-tetrahydroquinazoline hydrochloride (CAS 109126-56-9)
- 2-Ethyl-5,6,7,8-tetrahydroquinazoline-6-carboxylic acid (CAS 1367810-58-9)
- 2-Methyl-5,6,7,8-tetrahydroquinazoline-6-carboxylic acid (CAS 1368072-02-9)
- 5,6,7,8-tetrahydroquinazoline-6-carboxylic acid (CAS 1369096-46-7)
- 2-Oxo-1,2,3,4-tetrahydroquinazoline-4-carboxylic acid (CAS 1378266-49-9)
- 2-Oxo-1,2,3,4-tetrahydroquinazoline-7-carboxylic acid (CAS 1783725-09-6)
Recommended Standards
- N-Methyltyramine (CAS 370-98-9)
- 3,4-Dimethoxybenzimidohydrazide (CAS 939999-69-6)
- 6-Chloro-3-hydroxy-1H-indole-2-carboxylic acid (CAS 132623-34-8)
- 1-(4-Methoxyphenyl)cyclopentanamine Hydrochloride (CAS 1221723-81-4)
- Empagliflozin impurity 226 (CAS CATO-C4X-1065226)
- 2-Acetylcoumaric acid (CAS 16189-10-9)
- 1-(4-(1H-Indol-3-yl)pyridin-1(4H)-yl)ethanone (CAS 34981-12-9)
- 2-Fluoro-2-phenylcyclopropan-1-amine (CAS 914221-39-9)
- Methyl 2-phenylbenzofuran-5-carboxylate (CAS 190067-53-9)
- Semaglutide Impurity 144 (CAS 394210-59-4)
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