1,3-Dichloro-8-methylisoquinoline CAS 21902-39-6
| CAS No. | 21902-39-6 |
| Molecular Formula | C10H7Cl2N |
| Molecular Weight | 212.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1,3-Dichloro-8-methylisoquinoline (CAS 21902-39-6), a certified reference material (molecular formula C10H7Cl2N, MW 212.08 g/mol) for analytical method development and quality control.
1,3-Dichloro-8-methylisoquinoline (C10H7Cl2N) contains a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility; these physicochemical properties determine the optimal preparation and storage of its standard solutions. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
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 | C10H7Cl2N |
| Molecular Weight | 212.08 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor, faint amine-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in chloroform, dichloromethane, ethyl acetate |
| Stability | May oxidize slowly on prolonged air exposure; 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.) | 1963 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Dichloro Standards
- 2,4-Dichloro-6-methylquinoline (CAS 102878-18-2)
- 2,4-Dichloro-7-methylquinoline (CAS 102878-19-3)
- 2,4-Dichloro-8-methylquinoline (CAS 102878-20-6)
- 2,8-Dichloro-6-methylquinoline (CAS 1195523-25-1)
- 2,7-Dichloro-8-methylquinoline (CAS 1215205-97-2)
- 2,7-Dichloro-3-methylquinoline (CAS 132118-46-8)
- 2,8-Dichloro-3-methylquinoline (CAS 1339432-40-4)
- 2,5-Dichloro-8-methylquinoline (CAS 1340414-32-5)
Recommended Standards
- 1,3-Dichloro-7-methylisoquinoline (CAS 21902-37-4)
- 2-(2,5-Dichlorophenyl)pyrrole (CAS 99113-94-7)
- 1,3-Dichloro-5-methylisoquinoline (CAS 21902-40-9)
- 2-(Dichloromethyl)quinoline (CAS 4032-52-4)
- 7-Benzyl-1,4-dioxa-7-azaspiro[4.5]decane-8-carbonitrile (CAS 132462-23-8)
- 2-(4-Bromo-2-chlorophenoxy)butanoic acid (CAS 861507-54-2)
- 4-Carboxyphenylboronic acid pinacol ester (CAS 180516-87-4)
- 3-(1,2-oxazinan-2-yl)propanoic acid hydrochloride (CAS 915922-89-3)
- 1-(2-Ethyl-4-methyl-1,3-thiazol-5-yl)ethan-1-one (CAS 1249043-91-1)
- 2-Chloro-1,3-bis(2-chlorophenyl)propane-1,3-dione (CAS 938013-61-7)
- 6-Chloro-n-(3-methoxypropyl)nicotinamide (CAS 1094316-70-7)
- 2,6-Dichloro-3-(trifluoromethyl)phenol (CAS 393-00-0)
- (4R,9aS)-4-(3,4,5-trifluorophenyl)hexahydropyrido[2,1-c][1,4]oxazin-6(1H)-one (CAS 937816-17-6)
- (Ser(PO?H?)3??·???)-Tau Peptide (379-408) trifluoroacetate salt (CAS 2022956-60-9)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
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