N-butyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine CAS 2750883-29-3
| CAS No. | 2750883-29-3 |
| Molecular Formula | C9H12ClN5 |
| Molecular Weight | 225.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 225.68 g/mol gives N-butyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
N-butyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine (CAS 2750883-29-3) is a high-purity analytical reference standard with the molecular formula C9H12ClN5 and a molecular weight of 225.68 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, N-butyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 225.68 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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), N-butyl-5-chloro-1H-pyrazolo[4,3-d]pyrimidin-7-amine 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 | C9H12ClN5 |
| Molecular Weight | 225.68 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2002 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 5 |
Recommended Standards
- N2,N2-Diallyl-6-chloro-1,3,5-triazine-2,4-diamine (CAS 857977-79-8)
- Thiotepa Impurity 1 (CAS 90877-51-3)
- N-(5-Chloro-2-methylphenyl)imidodicarbonimidic diamide (CAS 49872-65-3)
- (4-(2-Chlorophenyl)thiazol-2-yl)methanol (CAS 1050507-07-7)
- 1-Cyclopropoxy-4-methylbenzene (CAS 13605-03-3)
- 1-Ethyl-1-methylguanidine (CAS 1113-61-7)
- 1-(4-Bromophenyl)-n-methylethan-1-amine (CAS 87310-44-9)
- Des[3-[[(1-Carboxymethyl)cyclopropyl]methyl]thio]-2-propenyl Montelukast Mesylate (CAS 1187586-82-8)
- 1,5-Dichloro-9,10-dihydroanthracene (CAS 876274-67-8)
- 6-Bromo-3-(trifluoromethyl)-1H-pyrido[2,3-b][1,4]oxazin-2(3H)-one (CAS 2750895-74-8)
- O-Benzyl Posaconazole-d4 (CAS 1246818-95-0)
- 4-[3-(dimethylamino)phenoxy]benzonitrile (CAS 1307474-16-3)
- 59880-97-6 Chemotactic peptide F-Met-Leu-Phe L-Phenylalanine, N-(N-(N-formyl-L-methionyl)-L-leucyl)- N-Formyl-L-methionyl-L-leucyl-L-phenylalanine N-Formyl-Met-Leu-Phe N-Formylmethionine leucyl-phenylalanine fMLF fMLP (misnomer but widely used) (CAS 59880-97-6)
- C-telopeptide (CAS 162929-64-8)
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