5,7-Dihydroxyisobenzofuran-1(3H)-one CAS 27979-58-4
| CAS No. | 27979-58-4 |
| Molecular Formula | C8H6O4 |
| Molecular Weight | 166.13 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
5,7-Dihydroxyisobenzofuran-1(3H)-one (CAS 27979-58-4), molecular formula C8H6O4 and molecular weight 166.13 g/mol, is a CATO reference standard with documented purity and traceability.
Based on its molecular formula C8H6O4, 5,7-Dihydroxyisobenzofuran-1(3H)-one contains a carboxylic acid group, a hydroxyl group, an ether linkage, an aromatic ring system; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 166.13 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
Physical & Chemical Properties
| Molecular Formula | C8H6O4 |
| Molecular Weight | 166.13 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.) | 1964 |
Related Dihydroxyisobenzofuran Standards
Recommended Standards
- 5-Amino-2-nitrobenzaldehyde (CAS 948579-65-5)
- 5-(Furan-2-yl)imidazolidine-2,4-dione (CAS 79003-59-1)
- 5-Carbamoylnicotinic acid (CAS 24242-17-9)
- 4-Oxo-6,7-dihydro-4H-pyrazolo[5,1-c][1,4]oxazine-2-carbaldehyde (CAS 623564-77-2)
- 3-(3,4-Dimethoxybenzylidene)dihydrofuran-2(3H)-one (CAS 102669-37-4)
- 1,4-Dichloro-2-iodo-3-methoxybenzene (CAS 873980-99-5)
- Ethyl 3-(3,4-dimethylphenyl)-3-oxopropanoate (CAS 72835-86-0)
- 4-Amino-2-(2-aminoethyl)-1H-imidazole-5-carboxamide (CAS 500545-37-9)
- 4-(5-Methylfuran-2-yl)butan-2-one (CAS 13679-56-6)
- 1-Cyclopropyl-N-[(4-phenoxyphenyl)methyl]methanamine (CAS 169943-53-7)
- N-(4-Aminophenyl)-2-[2-(sec-butyl)phenoxy]-propanamide (CAS 1020055-77-9)
- 2,3,6,7-Tetramethylnaphthalene (CAS 1134-40-3)
- 3-(2-Oxo-3-phenyl-1,2-dihydroquinolin-6-yl)propanoic acid (CAS 1082390-77-9)
- C-Type Natriuretic Peptide (32-53) (human, porcine, rat) (CAS 127869-51-6)
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