6,7-Difluoro-1,2,3,4-tetrahydroisoquinoline CAS 787640-44-2
| CAS No. | 787640-44-2 |
| Molecular Formula | C9H9F2N |
| Molecular Weight | 169.17 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, fluorine substitution, 6,7-Difluoro-1,2,3,4-tetrahydroisoquinoline is typically off-white to pale yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 169.17 g/mol — guide the selection of appropriate sample preparation and analytical techniques. Nitrogen-containing functional groups confer excellent ionization efficiency in positive-ion electrospray (ESI) mode, making the compound well suited to LC-MS/MS analysis.
6,7-Difluoro-1,2,3,4-tetrahydroisoquinoline (CAS 787640-44-2) is a high-purity analytical reference standard with the molecular formula C9H9F2N and a molecular weight of 169.17 g/mol.
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 | C9H9F2N |
| Molecular Weight | 169.17 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 methanol, acetonitrile, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1986 |
| Halogen Content | F-containing |
| Nitrogen Atoms | 1 |
Related Difluoro Standards
- 6,7-Difluoro-2,3-dihydro-1H-inden-1-amine (CAS 1071449-17-6)
- (R)-5,6-Difluoro-2,3-dihydro-1H-inden-1-amine (CAS 1212913-19-3)
- (R)-5,7-difluoro-2,3-dihydro-1H-inden-1-amine (CAS 1213103-82-2)
- (R)-4,7-Difluoro-2,3-dihydro-1H-inden-1-amine (CAS 1241681-62-8)
- 7,8-Difluoro-1,2,3,4-tetrahydroquinoline (CAS 1249025-43-1)
- (R)-3,3-Difluoro-2,3-dihydro-1H-inden-1-amine (CAS 1266231-94-0)
- 7,8-Difluoro-1,2,3,4-tetrahydroisoquinoline (CAS 1341921-45-6)
- 4,6-Difluoro-2,3-dihydro-1h-inden-1-amine (CAS 148960-40-1)
Recommended Standards
- 5,8-Difluoro-1,2,3,4-tetrahydroquinoline (CAS 954275-94-6)
- 6,7-Difluoro-1,2,3,4-tetrahydroquinoline (CAS 953717-64-1)
- 5,8-Difluoro-1,2,3,4-tetrahydroisoquinoline (CAS 924307-79-9)
- 6,8-Difluoro-1,2,3,4-tetrahydroisoquinoline (CAS 874942-09-3)
- (6-Amino-3-methylbenzofuran-2-yl)(4-methoxyphenyl)methanone (CAS 174344-80-0)
- N,N-Dimethyl-9-phenoxyacridin-3-amine (CAS 61078-27-1)
- 4-Amino-N-(2-(diethylamino)ethyl)-7-fluorocinnoline-3-carboxamide (CAS 187231-52-3)
- (R)-2-(4-(trifluoromethyl)phenyl)pyrrolidine (CAS 1228549-96-9)
- Lifitegrast Impurity 38 (CAS CATO-C4X-240938)
- (2R)-2-Phenylpropan-1-isothiocyanate (CAS 68066-34-2)
- 2-({1-[(2-chloro-1,3-thiazol-5-yl)methyl]-1H-pyrrol-2-yl}methylene)malononitrile (CAS 692732-73-3)
- Tebufenozide-1-hydroxyethyl (CAS 163860-36-4)
- (R)-7-Fluoro-2,3-dihydrobenzofuran-3-amine hydrochloride (CAS 2102410-16-0)
- [14-31]-Semaglutide (CAS CATO-C4X-2226262)
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