3-Methyl-9H-pyrido[3,4-b]indole CAS 18203-06-0
| CAS No. | 18203-06-0 |
| Molecular Formula | C12H10N2 |
| Molecular Weight | 182.22 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
As a certified reference material (CRM), 3-Methyl-9H-pyrido[3,4-b]indole 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.
3-Methyl-9H-pyrido[3,4-b]indole (CAS 18203-06-0), molecular formula C12H10N2 and molecular weight 182.22 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a nitrogen-containing heterocyclic scaffold, a nitrile group, 3-Methyl-9H-pyrido[3,4-b]indole is typically pale yellow to yellow low-melting solid. Its solid-state physicochemical attributes — including a molecular weight of 182.22 g/mol — guide the selection of appropriate sample preparation and analytical techniques. 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.
Physical & Chemical Properties
| Molecular Formula | C12H10N2 |
| Molecular Weight | 182.22 g/mol |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | Light-sensitive; avoid direct strong light |
| Degree of Unsaturation (DBE) | 9.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1962 |
| Nitrogen Atoms | 2 |
Recommended Standards
- (R)-1-(2,3-Dimethoxyphenyl)ethan-1-ol (CAS 181962-53-8)
- rac-(4R,8aS)-4-(Hydroxymethyl)hexahydro-1H-pyrrolo[2,1-c][1,4]oxazine-4-carbonitrile (CAS 1823688-33-0)
- (2,4-dimethoxy-6-methylphenyl)methanol (CAS 181819-60-3)
- (1-(Tetrahydro-2H-pyran-2-yl)-1H-pyrazol-5-yl)methanol (CAS 1823866-20-1)
- 2-((4-Allyl-5-(4-(tert-butyl)phenyl)-4H-1,2,4-triazol-3-yl)thio)-N-(4-chlorophenyl)acetamide (CAS 538337-08-5)
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- 1-(2-(2-Chlorophenoxy)ethyl)-6-oxo-1,6-dihydropyridine-2-carboxylic acid (CAS 1423031-73-5)
- 4-BRomo-6,7-dimethoxy-1h-indole-2-carboxylic acid (CAS 887360-70-5)
- 3-Chloro-2-(2-fluorophenoxy)aniline 6254AC 946682-31-1 C12H9ClFNO (CAS 946682-31-1)
- tert-Butyl (R)-2-(2,4-dimethoxyphenyl)piperazine-1-carboxylate (CAS 1260615-43-7)
- 4-(Hydroxymethyl)benzo[d]oxazole-2-carboxamide (CAS 1806359-33-0)
- (4-Ethylphenyl)(p-tolyl)methanol (CAS 842140-60-7)
- Famciclovir Impurity 29 (CAS 2868360-27-2)
- Liraglutide Impurity 10 TFA Salt (CAS CATO-C4X-199210)
Why CATO?
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