3-Amino-4,7-dihydroxy-2H-chromen-2-one hydrochloride CAS 90322-50-2
| CAS No. | 90322-50-2 |
| Molecular Formula | C9H7NO4 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Amino-4,7-dihydroxy-2H-chromen-2-one hydrochloride 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.
3-Amino-4,7-dihydroxy-2H-chromen-2-one hydrochloride (CAS 90322-50-2), molecular formula C9H7NO4HCl and molecular weight 229.62 g/mol, is a CATO reference standard with documented purity and traceability.
The molecular framework of 3-Amino-4,7-dihydroxy-2H-chromen-2-one hydrochloride (C9H7NO4HCl) is characterized by a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C9H7NO4 HCl |
| Molecular Weight | 229.62 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 methanol, ethanol, DMSO |
| 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.) | 1982 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Amino Standards
- 3-Amino-1-methyl-4-phenoxyindazole (CAS 1000018-07-4)
- 3-Amino-2,6-dibromo-5-ethoxypyridine (CAS 1000018-10-9)
- Methyl 2-amino-5-bromo-4-isopropylbenzoate (CAS 1000018-13-2)
- Methyl 2-amino-3-(pyridin-2-yl)propanoate (CAS 100002-84-4)
- 100005-23-0 2-Amino-4-(4-methoxyphenyl)-5-methylthiophene-3-carbonitrile 7050AC C13H12N2OS (CAS 100005-23-0)
- Methyl 1-amino-4-cyano-1H-pyrrole-2-carboxylate (CAS 1000313-12-1)
- 6-Amino-7-hydroxy-2,3-dihydro-1H-inden-1-one hydrobromide (CAS 1000333-87-8)
- 6-Amino-7-iodo-2,3-dihydro-1H-inden-1-one (CAS 1000333-93-6)
Recommended Standards
- 1-Cyclopropoxy-3-fluoro-2-iodobenzene (CAS 1243427-23-7)
- 5-(4-Fluoro-3-methylphenyl)-3-methyl-5-oxopentanoic acid (CAS 951885-13-5)
- 2-Ethynyl-6-methylphenol (CAS 99299-72-6)
- 3-Ethylheptan-2-ol (CAS 19780-39-3)
- S-Ethyl 2-(5-ethoxytetrahydrofuran-2-yl)ethanethioate (CAS 475275-15-1)
- 4-Amino-5-(4-tert-butylphenoxymethyl)-4h-1,2,4-triazole-3-thiol (CAS 496784-99-7)
- 2-(2-Chloroethyl)-N-methyl-pyrrolidine hydrochloride 3-O-[3-(Dimethylamino)propyl]-1,2-O-(1-methylethylidene)-alpha-D-glucofuranose 56824-22-7 (CAS 56824-22-7)
- 2-Chloro-1-(2,4,6-trihydroxyphenyl)ethanone (CAS 110865-03-7)
- 2-Amino-6-(difluoromethyl)-5-methylnicotinaldehyde (CAS 1806900-56-0)
- Des-Leu26-Tirzepatide (CAS CATO-CPTD788947)
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