4,5-Dihydroxy-2H-chromen-2-one CAS 30992-74-6
| CAS No. | 30992-74-6 |
| Molecular Formula | C9H6O4 |
| Molecular Weight | 178.14 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4,5-Dihydroxy-2H-chromen-2-one (CAS 30992-74-6), a certified reference material (molecular formula C9H6O4, MW 178.14 g/mol) for analytical method development and quality control.
The molecular framework of 4,5-Dihydroxy-2H-chromen-2-one (C9H6O4) is characterized by a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. In reversed-phase chromatography, its retention is governed primarily by the polarity and ionization state of its functional groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
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), 4,5-Dihydroxy-2H-chromen-2-one 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 | C9H6O4 |
| Molecular Weight | 178.14 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, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
Related Dihydroxy Standards
- 4,5-Dihydroxy-1,3-bis(hydroxymethyl)imidazolidin-2-one (CAS 1854-26-8)
- 2,3-Dihydroxy-2,3-dimethylsuccinic acid (CAS 74543-88-7)
- 3,4-Dihydroxy-5-(hydroxymethyl)tetrahydrofuran-2-carboxylic acid (CAS 52993-96-1)
- 5,7-Dihydroxy-2H-chromen-2-one (CAS 2732-18-5)
- (4S)-4,8-Dihydroxy-3,4-dihydronaphthalene-1(2H)-one (CAS 54712-38-8)
- 4,8-Dihydroxy-3,4-dihydronaphthalen-1(2H)-one (CAS 62332-73-4)
- 5,6-Dihydroxy-3,4-dihydronaphthalen-1(2H)-one (CAS 59515-92-3)
- 6,7-Dihydroxy-3,4-dihydronaphthalen-1(2H)-one (CAS 54549-75-6)
Recommended Standards
- 4-(2-Oxoacetyl)benzoic acid (CAS 20099-54-1)
- 4,6-Dihydroxycoumarin (CAS 30992-75-7)
- 3-Oxo-3,4-dihydro-2H-pyrido[3,2-b][1,4]oxazine-6-carbaldehyde (CAS 443956-11-4)
- 4-amino-5-cyano-2-hydroxybenzoic acid (CAS 72817-93-7)
- 2-Amino-5-(2-methoxyphenoxy)benzoic acid (CAS 885267-99-2)
- 2930-05-4 ((Benzyloxy)methyl)benzene Oxirane, ((phenylmethoxy)methyl)- (9CI) Propane, 1-(benzyloxy)-2,3-epoxy- 5-17-03-00016 (Beilstein Handbook Reference) Benzyl glycidyl ether 1-(Benzyloxy)-2,3-epoxypropane (Benzyloxymethyl)oxirane BRN 0115279 EINECS 220-899-5 ((Phenylmethoxy)methyl)oxirane (CAS 2930-05-4)
- Abz-Ala-Phe-Arg-Phe-Ser-Gln-EDDnp trifluoroacetate salt (CAS 1926163-28-1)
- tert-Butyl (4-(3-((2,2,5,7,8-pentamethylchroman-6-yl)sulfonyl)guanidino)butyl)carbamate (CAS 1352925-66-6)
- Lurbinectedin Impurity 13 (CAS CATO-C4X-311413)
- 4-(Butylamino)phenol (CAS 103-62-8)
- 2-(Cyanomethyl)benzo[d]oxazole-7-acetic acid (CAS 1803747-23-0)
- Dencichine (CAS 5302-45-4)
- retro-Vitamin A acetate (CAS 7631-44-9)
- Semaglutide impurity 60 (CAS CATO-C4X-222660)
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