1,3-Dihydro-1-oxo-5-isobenzofurancarbonitrile 1,3-Dihydro-1-oxoisobenzofuran-5-carbonitrile 1-Oxo-1,3-dihydroisobenzofuran-5-carbonitrile 5-Cyano-3H-isobenzofuranone 5-Cyanophthalide 82104-74-3 CAS 82104-74-3
| CAS No. | 82104-74-3 |
| Molecular Formula | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
1,3-Dihydro-1-oxo-5-isobenzofurancarbonitrile 1,3-Dihydro-1-oxoisobenzofuran-5-carbonitrile 1-Oxo-1,3-dihydroisobenzofuran-5-carbonitrile 5-Cyano-3H-isobenzofuranone 5-Cyanophthalide 82104-74-3 (CAS 82104-74-3), molecular formula C9H11NO2 and molecular weight 165.19 g/mol, is a CATO reference standard with documented purity and traceability.
1,3-Dihydro-1-oxo-5-isobenzofurancarbonitrile 1,3-Dihydro-1-oxoisobenzofuran-5-carbonitrile 1-Oxo-1,3-dihydroisobenzofuran-5-carbonitrile 5-Cyano-3H-isobenzofuranone 5-Cyanophthalide 82104-74-3 (C9H11NO2) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. The carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
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 1,3-Dihydro-1-oxo-5-isobenzofurancarbonitrile 1,3-Dihydro-1-oxoisobenzofuran-5-carbonitrile 1-Oxo-1,3-dihydroisobenzofuran-5-carbonitrile 5-Cyano-3H-isobenzofuranone 5-Cyanophthalide 82104-74-3 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 | C9H11NO2 |
| Molecular Weight | 165.19 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (faint amine-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1980 |
| Nitrogen Atoms | 1 |
Related Dihydro Standards
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- 4-Methyl-3,4-dihydro-2H-benzo[b][1,4]oxazin-7-ol (CAS 119095-00-0)
- 4-Methyl-7,8-dihydro-5H-pyrano[4,3-d]pyrimidin-2-amine (CAS 1211464-22-0)
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- (3,4-Dihydro-2H-pyrano[2,3-b]pyridin-6-yl)methanol (CAS 1346446-87-4)
Recommended Standards
- 1,3-Dihydro-3-oxo-1-isobenzofurancarbonitrile 27613-27-0 3-Cyano-3H-isobenzofuranone 3-Cyanophthalide (CAS 27613-27-0)
- Glycine benzyl ester (CAS 1738-68-7)
- Rel-(3S,4S)-3-aminochroman-4-ol (CAS 33607-86-2)
- 3-Methyl-2-(methylamino)benzoic acid (CAS 866998-34-7)
- 2-Fluoro-4-(methylamino)phenol (CAS 115602-79-4)
- Glauberite (CAS 13767-89-0)
- Selenophene-2-carbaldehyde (CAS 25109-26-6)
- 2-chloranyl-5-(trifluoromethyl)pyrimidine 2-chloro-5-(trifluoromethyl)pyrimidine 69034-12-4 A836321 (CAS 69034-12-4)
- (1-(4-Methoxybenzyl)piperidin-4-yl)methanol (CAS 467423-20-7)
- 2-Ethyl-2-methyl-1,2-dihydro-quinoline (CAS 201654-47-9)
- Norpropylhexedrine hydrochloride (CAS 5471-54-5)
- 4-Amino-3-methylisothiazole-5-carboxylic acid (CAS 4592-56-7)
- 5-(2,6-Dimethylmorpholino)furan-2-carbaldehyde (CAS 1181388-11-3)
- Peptide 434 (CAS CATO-CPTD788434)
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