Isoquinoline-5-sulfonamide CAS 109547-31-1
| CAS No. | 109547-31-1 |
| Molecular Formula | C9H8N2O2S |
| Molecular Weight | 208.24 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Compared with other compounds in its class, the molecular weight of 208.24 g/mol gives Isoquinoline-5-sulfonamide distinctive chromatographic separation conditions and mass-spectrometry parameter settings.
CATO supplies Isoquinoline-5-sulfonamide (CAS 109547-31-1), a certified reference material (molecular formula C9H8N2O2S, MW 208.24 g/mol) for analytical method development and quality control.
Structurally, Isoquinoline-5-sulfonamide (C9H8N2O2S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 7.0, corresponding to approximately 7 ring(s) or double-bond equivalent(s). With a molecular weight of 208.24 g/mol, it falls into the medium-molecular-weight range. 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.
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 | C9H8N2O2S |
| Molecular Weight | 208.24 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1988 |
| Nitrogen Atoms | 2 |
| Sulfur Atoms | 1 |
Related Isoquinoline Standards
- Isoquinoline-4-sulfonamide (CAS 952651-48-8)
- isoquinoline-6-sulfonyl fluoride (CAS 1934467-56-7)
- ethyl isoquinoline-8-carboxylate (CAS 1261871-20-8)
- Ethyl isoquinoline-1-carboxylate (CAS 50458-78-1)
- Ethyl isoquinoline-4-carboxylate (CAS 50741-47-4)
- Ethyl isoquinoline-5-carboxylate (CAS 58794-08-4)
- Ethyl isoquinoline-7-carboxylate (CAS 407623-83-0)
- Isoquinoline Impurity 22 (CAS 91344-81-9)
Recommended Standards
- Ethyl thiazolo[5,4-b]pyridine-2-carboxylate (CAS 1089704-57-3)
- 4-(2-Methyl-1,3-thiazol-4-yl)-1h-pyrrole-3-carboxylic acid (CAS 1096868-02-8)
- 5-(3-Methoxyphenyl)-1,3,4-oxadiazole-2-thiol (CAS 108413-55-4)
- 2-[2-(furan-2-yl)-1,3-thiazol-4-yl]acetamide (CAS 1098349-47-3)
- (pyridin-2-ylmethyl)magnesium bromide (CAS 121719-36-6)
- Methyl 5-amino-3-methoxybenzofuran-2-carboxylate (CAS 1710202-32-6)
- 1-Benzhydryl-3-(2-(2-methyl-1H-imidazol-1-yl)ethyl)urea (CAS 1226431-55-5)
- 1-(Pyrazolo[1,5-a]pyridin-7-yl)ethan-1-amine hydrochloride (CAS 2875096-81-2)
- 3-(4-Methoxyphenyl)-5-methylisoxazole (CAS 61428-21-5)
- azepan-3-amine;dihydrochloride (CAS 1159822-22-6)
- Inosine Impurity 2 (CAS 52678-79-2)
- Cyclohexyl 2-amino-5-iodobenzoate (CAS 1131605-36-1)
- 4-(1h-Pyrazol-1-yl)butanimidamide (CAS 1134571-48-4)
- D-Phe22-Tirzepatide (CAS CATO-CPTD788912)
Why CATO?
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