7-bromo-1H,2H,3H,4H,5H-pyrrolo[3,2-d]pyrimidine-2,4-dione CAS 20419-74-3
| CAS No. | 20419-74-3 |
| Molecular Formula | C6H4BrN3O2 |
| Molecular Weight | 230.02 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 7-bromo-1H,2H,3H,4H,5H-pyrrolo[3,2-d]pyrimidine-2,4-dione.
7-bromo-1H,2H,3H,4H,5H-pyrrolo[3,2-d]pyrimidine-2,4-dione (CAS 20419-74-3), molecular formula C6H4BrN3O2 and molecular weight 230.02 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to an amide group, a carboxylic acid group, a hydroxyl group, an ether linkage, bromine substitution, an aromatic ring system, 7-bromo-1H,2H,3H,4H,5H-pyrrolo[3,2-d]pyrimidine-2,4-dione is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 230.02 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
As a certified reference material (CRM), 7-bromo-1H,2H,3H,4H,5H-pyrrolo[3,2-d]pyrimidine-2,4-dione 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 | C6H4BrN3O2 |
| Molecular Weight | 230.02 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 sealed and dry, 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; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Halogen Content | Br-containing |
| Nitrogen Atoms | 3 |
Related bromo Standards
- 5-(5-Bromo-2-furyl)-1,3,4-oxadiazol-2-amine (CAS 1016711-67-3)
- 3-Bromo-4-nitrobenzaldehyde (CAS 101682-68-2)
- 4-Bromo-6-formylpicolinic acid (CAS 1289032-98-9)
- 5-Bromo-3-formylpicolinic acid (CAS 1289071-04-0)
- 2-Bromo-6-formylisonicotinic acid (CAS 1289071-92-6)
- 5-Bromo-2-formylnicotinic acid (CAS 1289115-21-4)
- 6-bromo-1H,4H-pyrrolo[3,2-c]pyrazole-5-carboxylic acid (CAS 1379295-73-4)
- 2-Bromo-3-nitrobenzaldehyde (CAS 90407-21-9)
Recommended Standards
- 6-Bromo-5-methyltetrazolo[1,5-a]pyrimidin-7(4H)-one (CAS 610259-82-0)
- 7-Bromo-1H,3H,4H-pyrrolo[2,1-c][1,4]oxazine-1,3-dione (CAS 2092438-66-7)
- 6-Bromo-2H-pyrazino[2,3-b][1,4]oxazin-3(4H)-one (CAS 2376926-19-9)
- 7-Bromo-3-methylisoxazolo[4,5-d]pyridazin-4(5H)-one (CAS 2088729-22-8)
- 3-Fluoro-4-((3-methylpiperidin-1-yl)methyl)benzenethiol (CAS 1443337-03-8)
- N-(5-(2,4-Dichlorobenzyl)thiazol-2-yl)acetamide (CAS 314258-13-4)
- 3-(4-Methoxy-2-methylphenyl)-2-methylbenzoic acid (CAS 1261899-37-9)
- 2-Amino-N-methyl-N-(2-oxo-2-(1H-pyrrol-2-yl)ethyl)acetamide (CAS 1353981-68-6)
- 1H-Naphtho[2,3-d][1,3]oxazine-2,4-dione (CAS 29753-32-0)
- 2-Chloro-n'-(2-chloroacetyl)benzohydrazide (CAS 52093-13-7)
- 2-(6-Bromo-5-(difluoromethyl)-2-iodopyridin-3-yl)acetic acid (CAS 1805377-12-1)
- 1,1'-Bicoronene (CAS 56663-32-2)
- methyl 6-hydroxy-1-benzofuran-2-carboxylate (CAS 182747-75-7)
- Neuroendocrine Regulatory Peptide-1 (human) (H-6622.1000) (CAS 954420-50-9)
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