3,4-Dihydroisoquinoline-6,7-diol CAS 4602-83-9
| CAS No. | 4602-83-9 |
| Molecular Formula | C9H9NO2 |
| Molecular Weight | 163.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 3,4-Dihydroisoquinoline-6,7-diol.
CATO supplies 3,4-Dihydroisoquinoline-6,7-diol (CAS 4602-83-9), a certified reference material (molecular formula C9H9NO2, MW 163.17 g/mol) for analytical method development and quality control.
Based on its molecular formula C9H9NO2, 3,4-Dihydroisoquinoline-6,7-diol contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 163.17 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C9H9NO2 |
| Molecular Weight | 163.17 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) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 1 |
Related Dihydroisoquinoline Standards
- 6,7-Dihydroisoquinoline-3,8(2H,5H)-dione (CAS 56053-57-7)
- 2,3-Dihydroisoquinoline-1,4-dione (CAS 31053-30-2)
- 1-Ethyl-3,4-dihydroisoquinoline (CAS 41173-70-0)
- 1,2-Dihydroisoquinoline-4-carbaldehyde (CAS 50624-33-4)
- 3-oxo-2,3-dihydroisoquinoline-8-carbonitrile (CAS 1175272-54-4)
- 1-Oxo-1,2-dihydroisoquinoline-7-carbonitrile (CAS 1184913-64-1)
- 1-Oxo-1,2-dihydroisoquinoline-6-carbonitrile (CAS 1184916-94-6)
- 1-Oxo-1,2-dihydroisoquinoline-4-carbonitrile (CAS 53000-96-7)
Recommended Standards
- 3,4-Dihydrobenzo[f][1,4]oxazepin-5(2H)-one (CAS 703-51-5)
- 3,4-Dimethoxyphenylisocyanide (CAS 33904-01-7)
- 3,4-Dihydro-2H-pyrano[2,3-c]pyridine-6-carbaldehyde (CAS 527681-61-4)
- 3,5-Dihydrobenzo[e][1,4]oxazepin-2(1H)-one (CAS 3693-08-1)
- 1-(2,3-Difluoro-6-hydroxyphenyl)ethanone (CAS 921609-31-6)
- 4-(4-Fluorophenyl)-4-oxo-2-(p-tolylthio)butanoic acid (CAS 301194-45-6)
- AM-211 sodium, >98% (HPLC) (CAS 1263077-74-2)
- 1-((2-Chlorophenyl)thio)-3-methoxypropan-2-one (CAS 1515012-94-8)
- Methyl 1-amino-4-cyano-1H-pyrrole-2-carboxylate (CAS 1000313-12-1)
- Methyl-d (CAS 41251-37-0)
- 2-Chloro-6-(piperidin-1-yl)pyridine (CAS 19946-28-2)
- 2-Bromo-4-nitropyridine (CAS 6945-67-1)
- 1-(4-Fluorophenyl)-1,2-dihydro-3H-pyrazolo[3,4-b]pyridin-3-one (CAS 320419-94-1)
- Semaglutide impurity 96 (CAS CATO-C4X-222696)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 18665070610 / Nicole.chen@cato-chem.com