8,9-Dihydroxy-2-methyl-4-oxo-4H,5H-pyrano[3,2-c]chromene-10-carboxylic acid CAS 478-60-4
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 478-60-4 |
| Molecular Formula | C14H10O7 |
| Molecular Weight | 290.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
8,9-Dihydroxy-2-methyl-4-oxo-4H,5H-pyrano[3,2-c]chromene-10-carboxylic acid (CAS 478-60-4) is a high-purity pharmaceutical standards reference standard from CATO, an ISO 17034 accredited reference material producer. Molecular formula: C14H10O7. Molecular weight: 290.23 g/mol. Each batch is supplied with a Certificate of Analysis (COA).
Physical & Chemical Properties
| Molecular Formula | C14H10O7 |
| Molecular Weight | 290.23 g/mol |
| Appearance | Pale yellow to 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) | 10.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1957 |
Related Dihydroxy Standards
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- 9,10-Dihydroxy-3-isobutyl-3,4,6,7-tetrahydro-1H-pyrido[2,1-a]isoquinolin-2(11bH)-one (CAS 89929-27-1)
- 2-((4,6-Dihydroxy-1,3,5-triazin-2-yl)amino)-4H-benzo[e][1,3]thiazin-4-one (CAS 488090-15-9)
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- 2,4-Dihydroxy-6-[2-(4-hydroxy-phenyl)-ethyl]-benzoic acid methyl ester (CAS 1029773-12-3)
- 3-(2,4-Dihydroxy-6-methoxyphenyl)-1-(4-hydroxyphenyl)propan-1-one (CAS 119425-91-1)
- 2',4-Dihydroxy-5'-fluoro-3-methoxychalcone (CAS 847-13-2)
- 1,7-Dihydroxy-2,3-dimethoxy-9H-xanthen-9-one (CAS 78405-33-1)
Recommended Standards
- 5-Nitroso-6-ribitylamino-2,4(1H,3H)-pyrimidinedioneDISCONTINUED, offer N546615 (CAS 75599-13-2)
- Hexahydro-1H-inden-4(2H)-one (CAS 5686-83-9)
- 4-{[(2,6-dichlorophenyl)sulfanyl]methyl}-2-methyl-1,3-thiazole (CAS 338414-96-3)
- N-Isopropyl 4-fluorobenzenesulfonamide (CAS 515-47-9)
- Ethyl 5-(benzylthio)-1-methyl-1H-pyrazole-4-carboxylate (CAS 105958-89-2)
- 1-(4-Methoxyphenyl)-4-{5H-pyrimido[5,4-b]indol-4-yl}piperazine (CAS 338419-63-9)
- 5-(2-Hydrazonopropyl)-1,3,4-oxadiazol-2-amine (CAS 81259-40-7)
- [2-(4-Chloro-phenyl)-oxazol-4-yl]-methanol (CAS 22087-22-5)
- 2-(Ethylsulfonyl)-5-nitropyridine (CAS 767355-69-1)
- (Des-Thr7)-Glucagon trifluoroacetate salt (CAS 1802078-28-9)
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 13829788188 / jacky.chen@cato-chem.com