9-Hydroxy-7-methyl-2,3-dihydrocyclopenta[c]-chromen-4(1H)-one CAS 131526-95-9
| CAS No. | 131526-95-9 |
| Molecular Formula | C13H12O3 |
| Molecular Weight | 216.23 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.
9-Hydroxy-7-methyl-2,3-dihydrocyclopenta[c]-chromen-4(1H)-one (CAS 131526-95-9) is a high-purity analytical reference standard with the molecular formula C13H12O3 and a molecular weight of 216.23 g/mol.
Owing to a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system, 9-Hydroxy-7-methyl-2,3-dihydrocyclopenta[c]-chromen-4(1H)-one is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 216.23 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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).
As a certified reference material (CRM), 9-Hydroxy-7-methyl-2,3-dihydrocyclopenta[c]-chromen-4(1H)-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 | C13H12O3 |
| Molecular Weight | 216.23 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 chloroform, dichloromethane, ethyl acetate, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1994 |
Related Hydroxy Standards
- 3-(2-Hydroxy-1-naphthyl)propanoic acid (CAS 10441-53-9)
- 2-Hydroxy-3-(1-naphthyl)propanoic Acid (CAS 105927-85-3)
- 1-(5-Hydroxy-2-(prop-1-en-2-yl)benzofuran-6-yl)ethanone (CAS 112936-03-5)
- Methyl 1-hydroxy-6-methyl-2-naphthoate (CAS 1384880-02-7)
- 2-(8-Hydroxy-1,4-dioxaspiro[4.5]Decan-8-yl)acetic acid (CAS 1512115-69-3)
- 2-Hydroxy-1-(6-methoxy-2-naphthyl)ethanone (CAS 1538877-83-6)
- Methyl 4-Hydroxy-8-methyl-2-naphthoate (CAS 16059-74-8)
- 1-(1-Hydroxy-4-methoxynaphthalen-2-yl)ethan-1-one (CAS 73584-59-5)
Recommended Standards
- tert-Butyl 3-nitropyrrolidine-1-carboxylate (CAS 1309581-43-8)
- Methyl 2-methoxy-1-naphthoate (CAS 13343-92-5)
- Methyl-4-methoxy-1-naphthoate (CAS 13041-64-0)
- 1,3-Diethyl 2-(oxiran-2-ylmethyl)propanedioate (CAS 13353-23-6)
- 1,4,7,10,13-Pentaazacyclopentadecane (CAS 295-64-7)
- (6-(2,2,2-Trifluoroethoxy)imidazo[2,1-b]thiazol-5-yl)methanol (CAS 937628-47-2)
- 3'-Chloro-[1,1'-biphenyl]-3-carboxylicacid (CAS 168619-06-5)
- 4-Methoxy-3-[(3,4,5-trimethyl-1H-pyrazol-1-yl)-methyl]benzoic acid (CAS 1169970-27-7)
- 5-Bromo-2,3-dioxoindoline-7-carboxylic acid (CAS 1452166-15-2)
- 1,2-Phenylene diacetate (CAS 635-67-6)
- 3-Amino-1-(tert-butyl)piperidin-2-one (CAS 1341932-08-8)
- 3-Amino-6-bromo-1-benzothiophene-2-carboxylic acid (CAS 1781783-46-7)
- 5-(5-fluoro-2-methoxyphenyl)-[1,2,4]triazolo[1,5-a]pyrazin-2-amine (CAS 2007915-48-0)
- Des-[Ser]8-Liraglutide (CAS CATO-C4X-199233)
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