1-(6-Amino-5,6,7,8-tetrahydroquinazolin-2-yl)urea CAS 929973-35-3
| CAS No. | 929973-35-3 |
| Molecular Formula | C9H13N5O |
| Molecular Weight | 207.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1-(6-Amino-5,6,7,8-tetrahydroquinazolin-2-yl)urea (CAS 929973-35-3), molecular formula C9H13N5O and molecular weight 207.23 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 1-(6-Amino-5,6,7,8-tetrahydroquinazolin-2-yl)urea (C9H13N5O) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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 | C9H13N5O |
| Molecular Weight | 207.23 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.) | 1987 |
| Nitrogen Atoms | 5 |
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- 2-Amino-4-nitrobenzoxazole (CAS 1126637-53-3)
- 3-Amino-9-fluoro-5-phenyl-1H-benzo[e][1,4]diazepin-2(3H)-one (CAS 1584714-99-7)
- Methyl 4-acetamido-6-(chloromethyl)picolinate (CAS 1393550-69-0)
- 2-(2,6-Dichlorophenyl)pyrimidin-4-amine (CAS 1250691-12-3)
- 2-Fluoro-N-methyl-5-nitroaniline (CAS 110729-51-6)
- 5-(Pyridin-4-yl)pyrimidin-4(3H)-one (CAS 22433-72-3)
- Methyl 4-propionyl-1-tosyl-1H-pyrrole-2-carboxylate (CAS 1191272-69-1)
- 4-(4-Fluoro-3-methylphenyl)oxazolidin-2-one (CAS 1479629-58-7)
- a-Bag Cell Peptide (1-8) (CAS 87549-53-9)
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