2-Methoxy-9H-purin-6-amine CAS 28128-30-5
| CAS No. | 28128-30-5 |
| Molecular Formula | C6H7N5O |
| Molecular Weight | 165.15 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
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.
2-Methoxy-9H-purin-6-amine (CAS 28128-30-5), molecular formula C6H7N5O and molecular weight 165.15 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 2-Methoxy-9H-purin-6-amine (C6H7N5O) contains an amide group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 165.15 g/mol, it falls into the medium-molecular-weight range. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 | C6H7N5O |
| Molecular Weight | 165.15 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.) | 1965 |
| Nitrogen Atoms | 5 |
Related Methoxy Standards
- 6-Methoxy-5H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 100605-51-4)
- 7-Methoxy-3-methylisoxazolo[4,5-d]pyridazine (CAS 106584-77-4)
- 3-Methoxy-5H-pyrazolo[3,4-d]pyrimidin-4-amine (CAS 111375-22-5)
- 8-Methoxy-[1,2,4]triazolo[4,3-a]pyridin-3(2H)-one (CAS 1279089-06-3)
- 6-Methoxy-[1,2,4]triazolo[1,5-b]pyridazin-2-amine (CAS 1319067-82-7)
- 8-Methoxy-1H-purin-2-amine (CAS 138949-62-9)
- 7-Methoxy-7H-purin-6-amine (CAS 155854-88-9)
- 4-Methoxy-3-methylisoxazolo[5,4-d]pyrimidine (CAS 175348-25-1)
Recommended Standards
- 2-Hydroxy-3,4-dihydro-2H-1,4-benzoxazin-3-one (CAS 23520-34-5)
- 2-Methyl-1H-pyrrolo[2,3-d]pyridazine-4,7-diol (CAS 91533-22-1)
- 2-Formyl-5-methylnicotinic acid (CAS 957786-00-4)
- 2-Methyl-3-nitrobenzaldehyde (CAS 23876-12-2)
- 2,5-Dichloro-4-[(4-methoxyphenyl)amino]pyrimidine (CAS 698999-78-9)
- 4-(5-Chloro-1H-pyrazol-1-yl)butanoic acid (CAS 1707365-21-6)
- tert-butyl 6-oxo-3-azabicyclo[3.1.1]heptane-3-carboxylate (CAS 1251013-26-9)
- 5-Amino-1-(2,3-dimethylphenyl)-1H-1,2,3-triazole-4-carboxamide (CAS 1255783-10-8)
- 2-Chloro-7-methylquinolin-4-amine (CAS 1888829-77-3)
- Lacosamide Impurity 19 (CAS CATO-C4X-183019)
- 3-Oxo-2-(pyridin-3-yl)butanenitrile (CAS 90417-12-2)
- 2-(6-(Isopropylthio)pyridin-3-yl)pyrrolidine-1-carbaldehyde (CAS 1352502-36-3)
- Methyl 3-(phenethylcarbamoyl)benzoate (CAS 925159-24-6)
- Semaglutide impurity 270 (CAS CATO-C4X-2226270)
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