6-Hydroxy-4-methyl-2,3-dihydro-1-benzofuran-3-one CAS 21861-32-5
| CAS No. | 21861-32-5 |
| Molecular Formula | C9H8O3 |
| Molecular Weight | 164.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 6-Hydroxy-4-methyl-2,3-dihydro-1-benzofuran-3-one (CAS 21861-32-5), a certified reference material (molecular formula C9H8O3, MW 164.16 g/mol) for analytical method development and quality control.
Structurally, 6-Hydroxy-4-methyl-2,3-dihydro-1-benzofuran-3-one (C9H8O3) contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system. The molecule exhibits a degree of unsaturation (DBE) of 6.0, corresponding to approximately 6 ring(s) or double-bond equivalent(s). With a molecular weight of 164.16 g/mol, it falls into the medium-molecular-weight range. 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).
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
CATO manufactures 6-Hydroxy-4-methyl-2,3-dihydro-1-benzofuran-3-one under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C9H8O3 |
| Molecular Weight | 164.16 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1963 |
Related Hydroxy Standards
- 3-Hydroxy-2-(3-hydroxyphenyl)prop-2-enal (CAS 105899-68-1)
- 4-Hydroxy-2-(hydroxymethyl)benzimidazole (CAS 116345-47-2)
- 5-Hydroxy-4-methyl-1H-pyrrolo[2,3-b]pyridin-2(3H)-one (CAS 1190316-54-1)
- 5-Hydroxy-4-methylisobenzofuran-1(3H)-one (CAS 1194700-73-6)
- 2-Hydroxy-7,8-dihydro-1,6-naphthyridin-5(6H)-one (CAS 1251033-14-3)
- 3-Hydroxy-6-methyl-5H,6H,7H-pyrrolo[3,4-b]pyridin-5-one (CAS 1391732-76-5)
- 1-Hydroxy-2-methyl-1H-1,3-benzodiazol-3-ium-3-olate (CAS 15966-52-6)
- 3-Hydroxy-6-methylisobenzofuran-1(3H)-one (CAS 177166-16-4)
Recommended Standards
- 6-Hydroxy-4,5-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 56704-29-1)
- 6-Hydroxy-7-methyl-1-benzofuran-3(2H)-one (CAS 21861-22-3)
- 6-Hydroxy-1,4-dimethyl-2-oxo-1,2-dihydropyridine-3-carbonitrile (CAS 27074-03-9)
- 6-Hydroxy-7-methylisobenzofuran-1(3H)-one (CAS 6553-26-0)
- 1,3-Dibromo-5-fluoro-2-isopropoxybenzene (CAS 1224604-19-6)
- 1-(2,4-Dimethylphenyl)-4-methyl-1,6-dihydro-7H-pyrazolo[3,4-d]pyridazin-7-one (CAS 1105196-61-9)
- silver thiocyanate (CAS 1701-93-5)
- Sodium carbosulfonate impurity34 (CAS CATO-C4X-229134)
- 4-(4-Fluorophenyl)-4-hydroxybutanoic acid (CAS 87545-51-5)
- 4-Methoxy-3-((3-methoxyphenoxy)methyl)benzaldehyde (CAS 445030-59-1)
- Benzyl (6-bromohexyl)carbamate (CAS 116784-97-5)
- Methyl 2-(2,3-dichloroquinolin-6-yl)acetate (CAS 1081320-83-3)
- Methyl 5-(4-chloro-2-fluorophenyl)nicotinate (CAS 1346691-87-9)
- Semaglutide impurity 71 (CAS CATO-C4X-222671)
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