5,6,7,8-Tetrahydroquinazoline-2,6-diamine, 97% CAS 285139-05-1
| CAS No. | 285139-05-1 |
| Molecular Formula | C8H12N4 |
| Molecular Weight | 164.21 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 5,6,7,8-Tetrahydroquinazoline-2,6-diamine, 97% is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 164.21 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
5,6,7,8-Tetrahydroquinazoline-2,6-diamine, 97% (CAS 285139-05-1) is a high-purity analytical reference standard with the molecular formula C8H12N4 and a molecular weight of 164.21 g/mol.
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.
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 |
| Molecular Weight | 164.21 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) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Nitrogen Atoms | 4 |
Related Tetrahydroquinazoline Standards
- 5,6,7,8-Tetrahydroquinazoline-2,4-diamine (CAS 1899-40-7)
- 5,6,7,8-Tetrahydroquinazoline-2,4,6-triamine (CAS 225504-33-6)
- 4-Methyl-5,6,7,8-tetrahydroquinazoline (CAS 103796-40-3)
- 4-Methyl-5,6,7,8-tetrahydroquinazoline-2-thiol (CAS 521305-91-9)
- 7-methyl-1,2,3,4-tetrahydroquinazoline-2,4-dione (CAS 62484-15-5)
- 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
- 5-(Piperazin-1-yl)pyrimidine (CAS 202135-70-4)
- 5-Amino-3-(tert-butyl)-1H-pyrazole-4-carbonitrile (CAS 934743-41-6)
- 5-(3-Amino-1h-pyrazol-1-yl)pentanenitrile (CAS 84158-01-0)
- 5-Amino-4-(2-pyridyl)pyrazole (CAS 493038-87-2)
- 5-Bromo-2-naphthalenol (CAS 116632-05-4)
- Albendazole Impurity 15 (CAS 1805694-08-9)
- 6-Methyl-4-(1-methyl-1H-pyrazol-5-yl)benzo[d]thiazol-2-amine (CAS 2108787-99-9)
- 2-Benzamido-3-(4-fluorophenyl)propanoic acid (CAS 69980-11-6)
- 4-Cyclopropyl(phenyl-d4)-boronic acid (CAS 1802889-44-6)
- Methyl 5-phenylpyridazine-4-carboxylate (CAS 100136-41-2)
- 1-tert-Butyl 2-methyl (2S,4S)-4-[(2-furylmethyl)-amino]pyrrolidine-1,2-dicarboxylate (CAS 1186652-91-4)
- 3-(Cyclopropylmethoxy)-2-hydroxy-N-methylbenzamide (CAS 1243441-05-5)
- 2-Amino-3-methylisonicotinic acid (CAS 1227597-39-8)
- Semaglutide impurity 255 (CAS CATO-C4X-2226255)
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