3-(2-Chlorobenzyl)-8-methyl-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one CAS 891015-30-8
| CAS No. | 891015-30-8 |
| Molecular Formula | C18H14ClN3O |
| Molecular Weight | 323.78 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Structurally, 3-(2-Chlorobenzyl)-8-methyl-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one (C18H14ClN3O) contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution. The molecule exhibits a degree of unsaturation (DBE) of 13.0, corresponding to approximately 13 ring(s) or double-bond equivalent(s). With a molecular weight of 323.78 g/mol, it falls into the moderately-high-molecular-weight range. The high carbon-to-hydrogen ratio imparts good lipophilicity, allowing liquid-liquid extraction with non-polar solvents such as n-hexane or ethyl acetate.
3-(2-Chlorobenzyl)-8-methyl-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one (CAS 891015-30-8) is a high-purity analytical reference standard with the molecular formula C18H14ClN3O and a molecular weight of 323.78 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.
As a certified reference material (CRM), 3-(2-Chlorobenzyl)-8-methyl-3,5-dihydro-4H-pyrimido[5,4-b]indol-4-one 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.
Physical & Chemical Properties
| Molecular Formula | C18H14ClN3O |
| Molecular Weight | 323.78 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light |
| 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) | 13.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1987 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 3 |
Related Chlorobenzyl Standards
- N-(2-Chlorobenzyl)-2-(4-ethyl-2,3-dioxopiperazin-1-yl)acetamide (CAS 868965-10-0)
- 2-((2-Chlorobenzyl)amino)-2-oxoethyl 5-methylthiophene-2-carboxylate (CAS 387855-28-9)
- N-(2-Chlorobenzyl)-2,4,5-trimethylbenzenesulfonamide (CAS 929394-08-1)
- 3-((4-Chlorobenzyl)thio)-5-(thiophen-2-yl)-4H-1,2,4-triazol-4-amine (CAS 477872-66-5)
- Ethyl 2-[3-(2-chlorobenzyl)-2,4,5-trioxo-1-imidazolidinyl]acetate (CAS 128043-66-3)
- N-(4-Chlorobenzyl)-N-cyclopropyl-2-(3-hydroxypiperidin-1-yl)acetamide (CAS 1353954-37-6)
- 2-((4-Chlorobenzyl)thio)-3-methylthieno[3,2-d]pyrimidin-4(3H)-one (CAS 339105-67-8)
- (2-(4-Chlorobenzyl)thiazol-4-yl)(morpholino)methanone (CAS 478030-47-6)
Recommended Standards
- (2E)-N'-(4-Chlorophenyl)-3-(quinolin-3-yl)prop-2-enehydrazide (CAS 478039-63-3)
- 3-(4-Chlorophenyl)-7-(1H-imidazol-1-yl)-2,5-dimethylpyrazolo[1,5-a]pyrimidine (CAS 849911-11-1)
- 9-Benzyl-5-chloro-7,8,9,10-tetrahydro-[1,2,4]triazolo[3,4-a][2,7]naphthyridine-6-carbonitrile (CAS 1956327-52-8)
- 3-[(3-Chlorophenyl)methyl]-7-methyl-1,3,8,12-tetraazatricyclo[7.3.0.0^{2,6}]dodeca-2(6),7,9,11-tetraene-10-carbonitrile (CAS 860610-67-9)
- 2-(4-Fluorobenzamido)-3-(1H-indol-3-yl)propanoic acid (CAS 39545-02-3)
- 2-(3,3-Dimethylcyclohex-1-en-1-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2768661-52-3)
- Dimethyl 2-fluoroterephthalate (CAS 5292-47-7)
- tert-Butyl (3-(4-nitrophenoxy)propyl)carbamate (CAS 623562-63-0)
- 2-(4-Chloro-2-fluorophenyl)oxazolo[4,5-b]pyridine (CAS 52333-65-0)
- 2,4-Dichloro-6-(trifluoromethyl)quinoline (CAS 852203-17-9)
- 3-Isopropyl-2-(trifluoromethyl)phenol (CAS 1243280-02-5)
- 4-Bromo-2,3-dihydro-1H-pyrrolo[3,4-c]pyridine (CAS 1393585-39-1)
- Sumatriptan Impurity 11 (CAS 54476-52-7)
- Semaglutide-d15 (CAS 910463-68-2(non-labelled))
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