6638-64-8 3-Nitro-6H-dibenzo(b,d)pyran-6-one 6H-Dibenzo(b,d)pyran-6-one, 3-nitro- 2-Biphenylcarboxylic acid, 2'-hydroxy-4'-nitro-, delta-lactone CCRIS 7714 CAS 6638-64-8
| CAS No. | 6638-64-8 |
| Molecular Formula | C13H19NO4 |
| Molecular Weight | 253.29 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO supplies 6638-64-8 3-Nitro-6H-dibenzo(b,d)pyran-6-one 6H-Dibenzo(b,d)pyran-6-one, 3-nitro- 2-Biphenylcarboxylic acid, 2'-hydroxy-4'-nitro-, delta-lactone CCRIS 7714 (CAS 6638-64-8), a certified reference material (molecular formula C13H19NO4, MW 253.29 g/mol) for analytical method development and quality control.
Owing to a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, 6638-64-8 3-Nitro-6H-dibenzo(b,d)pyran-6-one 6H-Dibenzo(b,d)pyran-6-one, 3-nitro- 2-Biphenylcarboxylic acid, 2'-hydroxy-4'-nitro-, delta-lactone CCRIS 7714 is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 253.29 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).
As a certified reference material (CRM), 6638-64-8 3-Nitro-6H-dibenzo(b,d)pyran-6-one 6H-Dibenzo(b,d)pyran-6-one, 3-nitro- 2-Biphenylcarboxylic acid, 2'-hydroxy-4'-nitro-, delta-lactone CCRIS 7714 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 | C13H19NO4 |
| Molecular Weight | 253.29 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
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Recommended Standards
- tert-butyl 4-methyl-3,5-dioxo-2-azabicyclo[2.2.2]octane-2-carboxylate (CAS 2007920-45-6)
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- Esomeprazole Impurity 131 (CAS CATO-C4X-1112131)
- 4-Methylenepiperidine 2,2,2-trifluoroacetate (CAS 1361406-63-4)
- 3-(1H-benzo[d]imidazol-2-yl)-N-(4-chloro-3-(trifluoromethyl)phenyl)piperidine-1-carboxamide (CAS 837389-88-5)
- 2-(((tert-Butoxycarbonyl)amino)methyl)oxazole-4-carboxylic acid (CAS 182120-90-7)
- Procaine RC 8 (CAS 172093-34-4)
- 3-Bromo-5-morpholinobenzonitrile (CAS 1129540-92-6)
- [Tyr0] Fibrinopeptide A, human (CAS 103226-11-5)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com