5-Chloro-6,7,8,9-tetrahydrobenzo[b][1,8]naphthyridine CAS 267220-23-5
| CAS No. | 267220-23-5 |
| Molecular Formula | C12H11ClN2 |
| Molecular Weight | 218.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 5-Chloro-6,7,8,9-tetrahydrobenzo[b][1,8]naphthyridine 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.
5-Chloro-6,7,8,9-tetrahydrobenzo[b][1,8]naphthyridine (CAS 267220-23-5) is a high-purity analytical reference standard with the molecular formula C12H11ClN2 and a molecular weight of 218.68 g/mol.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, chlorine substitution, 5-Chloro-6,7,8,9-tetrahydrobenzo[b][1,8]naphthyridine is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 218.68 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.
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C12H11ClN2 |
| Molecular Weight | 218.68 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 8.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related Chloro Standards
- 4-Benzyl-6-chloro-2-methylpyrimidine (CAS 100565-30-8)
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Recommended Standards
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- 5-Chlorothieno[3,2-b]thiophene-2-carboxylic acid (CAS 70060-15-0)
- 3-[4-[(2-Methylpropan-2-yl)oxycarbonyl]piperazin-1-yl]indolizine-6-carboxylic acid (CAS 1251009-25-2)
- (S)-2-(Pyridin-4-ylmethyl)piperazine (CAS 1217442-44-8)
- (5-Bromo-2-methoxyphenyl)hydrazine (CAS 569688-69-3)
- (5-Prop-1-ynylpyridin-3-yl)boronic acid (CAS 917471-30-8)
- 4-(3,4-Dimethylphenoxy)aniline hydrochloride (CAS 1185297-66-8)
- 1-(6-Nitroquinoxalin-2-yl)piperidin-4-ol (CAS 1417793-14-6)
- (Octahydro-1H-4,7-methanoinden-5-yl)methyl acrylate (CAS 127823-21-6)
- 4-Methyl-4-nonyl-2-vinyloxazol-5(4H)-one (CAS 81095-01-4)
- 6-Bromo-3,3-dimethyl-2,3-dihydrobenzo[d]isothiazole 1,1-dioxide (CAS 1379332-18-9)
- Peptide YY (13-36) (canine, mouse, porcine, rat) (CAS 86895-09-2)
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