7-Benzyl-6-chloro-7H-purine CAS 1928-77-4
| CAS No. | 1928-77-4 |
| Molecular Formula | C12H9ClN4 |
| Molecular Weight | 244.68 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.
7-Benzyl-6-chloro-7H-purine (CAS 1928-77-4), molecular formula C12H9ClN4 and molecular weight 244.68 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 7-Benzyl-6-chloro-7H-purine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 244.68 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).
CATO manufactures 7-Benzyl-6-chloro-7H-purine under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H9ClN4 |
| Molecular Weight | 244.68 g/mol |
| 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 4 |
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Recommended Standards
- 6-Chloro-9-benzylpurine (CAS 1928-76-3)
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- 1-(3-Chlorophenyl)-1,3-dihydro-2H-benzo[d]imidazol-2-one (CAS 83422-46-2)
- Ethyl (2S)-1-Boc-5-methoxypyrrolidine-2-carboxylate (CAS 194594-24-6)
- (2-Cyclopropyl-4-(1H-imidazol-1-yl)phenyl)boronic acid (CAS 2225172-26-7)
- 4-Chloro-3-isobutoxythiophene-2-carboxylic acid (CAS 1708079-49-5)
- (1S,6R)-3-Boc-7-[(R)-1-phenylethyl]-3,7-diazabicyclo[4.2.0]octane (CAS 1820574-76-2)
- (3Z)-3-{[4-(propan-2-yl)phenyl]imino}-2,3-dihydro-1H-indol-2-one (CAS 390379-39-2)
- 5-(2-Chloro-6-fluorophenyl)-1,3,4-thiadiazol-2-amine (CAS 299934-62-6)
- 2,4-Diamino-6-hydroxypyrimidine-15N3 (CAS 1638736-04-5)
- 2-Fluoroiodobenzene (CAS 348-52-7)
- Methyl 4-formyl-7-methoxy-1-benzofuran-2-carboxylate (CAS 59254-16-9)
- Semaglutide impurity 50 (CAS 2773558-66-8)
Why CATO?
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