7-Bromo-4-chloro-2-methyl-5H-pyrrolo[3,2-d]pyrimidine CAS 1055057-39-0
| CAS No. | 1055057-39-0 |
| Molecular Formula | C7H5BrClN3 |
| Molecular Weight | 246.49 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 7-Bromo-4-chloro-2-methyl-5H-pyrrolo[3,2-d]pyrimidine 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.
7-Bromo-4-chloro-2-methyl-5H-pyrrolo[3,2-d]pyrimidine (CAS 1055057-39-0), molecular formula C7H5BrClN3 and molecular weight 246.49 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C7H5BrClN3, 7-Bromo-4-chloro-2-methyl-5H-pyrrolo[3,2-d]pyrimidine contains a nitrile group, chlorine/bromine substitution, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 246.49 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
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.
Physical & Chemical Properties
| Molecular Formula | C7H5BrClN3 |
| Molecular Weight | 246.49 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| 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.) | 1988 |
| Halogen Content | Cl/Br-containing |
| Nitrogen Atoms | 3 |
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Recommended Standards
- 874676-81-0 5-Chloro-2-iodopyrimidine Pyrimidine, 5-chloro-2-iodo- BCP21674 (CAS 874676-81-0)
- 4-chloro-6-iodo-pyrimidine (CAS 258506-74-0)
- 3-chloro-6-iodopyridazine (CAS 135034-10-5)
- 7790-86-5 TH8E3IE00V Cerous chloride Cerium chloride (CeCl3) Cerium trichloride Cerous(III) chloride Cerium(III) chloride AI3-51764 CCRIS 6888 EINECS 232-227-8 NSC 84267 UNII-TH8E3IE00V EC 232-227-8 (CAS 7790-86-5)
- 4-Chloro-7-hydroxy-6,7-dihydro-5H-cyclopenta[b]pyridine (CAS 126053-15-4)
- 4-(Thiomorpholine-4-carbonyl)cyclohexan-1-amine (CAS 1183736-33-5)
- 5-Amino-1-(4-hydroxy-6-methylpyrimidin-2-yl)-1H-pyrazole-4-carbonitrile (CAS 90324-30-4)
- 5-Amino-N-hydroxy-1-(o-tolyl)-1H-pyrazole-4-carboxamide (CAS 89433-96-5)
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Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com