Isoquinoline-3-carboxylic Acid Hydrate CAS 203626-75-9
| CAS No. | 203626-75-9 |
| Molecular Formula | C10H7NO2 |
| Molecular Weight | N/A |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies Isoquinoline-3-carboxylic Acid Hydrate (CAS 203626-75-9), a certified reference material (molecular formula C10H7NO2H2O, MW 191.19 g/mol) for analytical method development and quality control.
Isoquinoline-3-carboxylic Acid Hydrate (C10H7NO2H2O) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, 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.
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.
As a certified reference material (CRM), Isoquinoline-3-carboxylic Acid Hydrate meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C10H7NO2 H2O |
| Molecular Weight | 191.19 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, 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) | 7.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2015 |
| Nitrogen Atoms | 1 |
Related Isoquinoline Standards
- Isoquinoline-6-carbohydrazide (CAS 1015068-44-6)
- isoquinoline-6-sulfonyl chloride (CAS 107322-01-0)
- Isoquinoline-5-sulfonamide (CAS 109547-31-1)
- Isoquinoline-6-carbonyl chloride (CAS 1105710-41-5)
- Isoquinoline-3-carbohydrazide (CAS 1119545-63-9)
- isoquinoline-5,8-diamine (CAS 1127-49-7)
- Isoquinoline-6,7-diol hydrobromide (CAS 113884-76-7)
- Isoquinoline-1,6-diamine (CAS 1147347-51-0)
Recommended Standards
- 2-Amino-9-((2S,4S,5R)-4-hydroxy-5-(hydroxymethyl)tetrahydrofuran-2-yl)-3H-purine-6(9H)-thione (CAS 2133-81-5)
- 6-Methylimidazo[2,1-b][1,3]thiazole-5-carboxylic acid 6-methylimidazo[2,1-b]thiazole-5-carboxylic acid 77628-51-4 (CAS 77628-51-4)
- 1-(5-Chloropyrimidin-2-yl)ethan-1-one (CAS 1822666-76-1)
- 2-Amino-5-iodopyrimidine (CAS 1445-39-2)
- 3-{2-[(4-Iodobenzyl)oxy]ethyl}piperidinehydrochloride (CAS 1220032-44-9)
- 5-Bromo-N-isopropyl-2-methylaniline (CAS 1157896-62-2)
- N-(3-{5H,6H,7H,8H-[1,2,4]triazolo[4,3-a]pyridin-3-yl}phenyl)acetamide (CAS 1775452-42-0)
- 4-Methyl-2-oxo-2H-chromen-3-yl (3-(triethoxysilyl)propyl)carbamate (CAS 129119-78-4)
- 2-Chloro-5-{[4-(trifluoromethoxy)phenyl]sulfamoyl}benzoic acid (CAS 745798-18-9)
- Semaglutide impurity 83 (CAS CATO-C4X-222683)
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