8-Iodo-1H-quinazoline-2,4-dione CAS 959236-79-4
| CAS No. | 959236-79-4 |
| Molecular Formula | C8H5IN2O2 |
| Molecular Weight | 288.04 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8-Iodo-1H-quinazoline-2,4-dione (CAS 959236-79-4), molecular formula C8H5IN2O2 and molecular weight 288.04 g/mol, is a CATO reference standard with documented purity and traceability.
Structurally, 8-Iodo-1H-quinazoline-2,4-dione (C8H5IN2O2) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, iodine substitution. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 288.04 g/mol, it falls into the medium-molecular-weight range. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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), 8-Iodo-1H-quinazoline-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 | C8H5IN2O2 |
| Molecular Weight | 288.04 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | I-containing |
| Nitrogen Atoms | 2 |
Related Iodo Standards
- 3-Iodo-1H-pyrrolo[3,2-c]pyridine-4-carboxylic acid (CAS 1000341-28-5)
- 6-Iodo-5-nitro-1H-indole (CAS 1000343-00-9)
- 2-(2-Iodo-6-nitrophenyl)acetonitrile (CAS 105003-97-2)
- 3-Iodo-1H-pyrrolo[2,3-b]pyridine-5-carboxylic acid (CAS 1060816-80-9)
- 5-Iodo-1H-indazole-3-carboxylic acid (CAS 1077-97-0)
- 3-Iodo-1H-pyrrolo[2,3-c]pyridine-7-carboxylic acid (CAS 1190310-28-1)
- 4-Iodo-1H-pyrrolo[2,3-b]pyridine-6-carboxylic acid (CAS 1190310-37-2)
- 3-Iodo-1H-pyrrolo[3,2-b]pyridine-7-carboxylic acid (CAS 1190310-73-6)
Recommended Standards
- 7-Iodo-2,4(1H,3H)-quinazolinedione (CAS 959236-72-7)
- 2,2,2-Trifluoroethyl n-(3,5-dichlorophenyl)carbamate (CAS 1087788-79-1)
- 6-Iodoindazole-3-carboxylic Acid (CAS 885520-67-2)
- 2,2,2-Trifluoroethyl n-(2,3-dichlorophenyl)carbamate (CAS 1087797-90-7)
- (2,4-Dichloro-6-methylphenoxy)acetic acid (CAS 13333-87-4)
- Ethyl 5-methyl-5-azaspiro[2.5]Octane-1-carboxylate (CAS 1824277-00-0)
- 6-cyano-1H-indazole-3-carboxylic acid (CAS 194163-31-0)
- 1-(Pyridin-4-ylmethyl)-1H-imidazole-4-carboxylic acid (CAS 1368538-90-2)
- 1-Isobutyl-2-oxo-1,2-dihydroquinoline-3-carbaldehyde (CAS 885954-27-8)
- 4,4,7-Trimethyl-1,2,3,4-tetrahydroisoquinoline (CAS 1267391-08-1)
- 4-Chloro-2-cyclopropylquinazoline (CAS 898044-61-6)
- 5-Bromo-6-((tetrahydro-2H-pyran-4-yl)amino)nicotinic acid (CAS 1812198-15-4)
- 4-[6-(Methoxymethyl)-2-methylpyrimidin-4-yl]morpholine (CAS 478043-19-5)
- Semaglutide impurity 92 (CAS CATO-C4X-222692)
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