Isoquinolin-1(7H)-one CAS 734529-40-9
| CAS No. | 734529-40-9 |
| Molecular Formula | C9H7NO |
| Molecular Weight | 145.16 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Isoquinolin-1(7H)-one (C9H7NO) contains a nitrogen-containing heterocyclic scaffold, an amide group, a hydroxyl group, an ether linkage. Its physicochemical properties are representative of its class; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The aromatic system may exhibit native fluorescence, enabling detection with a fluorescence detector (FLD).
Isoquinolin-1(7H)-one (CAS 734529-40-9), molecular formula C9H7NO and molecular weight 145.16 g/mol, is a CATO reference standard with documented purity and traceability.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
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.
Physical & Chemical Properties
| Molecular Formula | C9H7NO |
| Molecular Weight | 145.16 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Nitrogen Atoms | 1 |
Related Isoquinolin Standards
- Isoquinolin-3-ol (CAS 134434-31-4)
- Isoquinolin-1(2H)-one (CAS 489453-23-8)
- Isoquinolin-1-ol (CAS 87602-67-3)
- Isoquinolin-3(4H)-one (CAS 42165-56-0)
- Isoquinolin-8-amine (CAS 23687-27-6)
- Isoquinolin-3(2H)-one 3-Hydroxyisoquinoline Isoquinolin-3-ol 3-Isoquinolinol 7651-81-2 (CAS 7651-81-2)
- Isoquinolin-7-ylmethanamine (CAS 1053655-96-1)
- Isoquinolin-3-ylmethanamine (CAS 132833-03-5)
Recommended Standards
- Indolizine-3-carbaldehyde (CAS 56671-63-7)
- Formylvaline (CAS 4289-96-7)
- Istradefylline impurity (CAS 49540-32-1)
- Ethyl oxazolidine-3-carboxylate (CAS 98549-05-4)
- 2,2,6,6-tetramethyl-1,2,3,6-tetrahydropyridine hydrochloride (CAS 1005-71-6)
- (r)-3-((((9h-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-chlorophenyl)propanoic acid (CAS 511272-52-9)
- 37041-32-0 Ethyl 1-chloro-5-methyl-1,2-dihydroquinoxaline-2-carboxylate DTXSID90747896 (CAS 37041-32-0)
- (R)-1-(2,3-dimethylphenyl)-2,2-dimethylpropan-1-amine (CAS 1390668-49-1)
- tert-Butyl (2-hydroxy-4-nitrophenyl)carbamate (CAS 124400-31-3)
- 8-((3-Nitro-1H-1,2,4-triazol-1-yl)sulfonyl)quinoline (CAS 77244-88-3)
- 6-Chloro-3-iodo-1-methyl-1H-indazole (CAS 1260656-83-4)
- 2-(Oxazol-2-yl)ethan-1-amine hydrochloride (CAS 2624142-28-3)
- 4-Benzoyl-N,N-dimethyl-1H-pyrrole-2-carboxamide (CAS 303995-89-3)
- Des-Ala21-Tirzepatide (CAS CATO-CPTD788952)
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