4H-1-benzopyran-4-one, 2-(2-chlorophenyl)-5,7-dihydroxy-8-[(2R,3S)-2-(Hydroxymethyl)-1-methyl-3-pyrrolidinyl]-, rel- CAS 647019-54-3
| CAS No. | 647019-54-3 |
| Molecular Formula | C21H20ClNO5 |
| Molecular Weight | 401.84 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Under current pharmacopoeial and regulatory frameworks, quality-control requirements for this class of reference material explicitly involve the control of targets including 4H-1-benzopyran-4-one, 2-(2-chlorophenyl)-5,7-dihydroxy-8-[(2R,3S)-2-(Hydroxymethyl)-1-methyl-3-pyrrolidinyl]-, rel-.
4H-1-benzopyran-4-one, 2-(2-chlorophenyl)-5,7-dihydroxy-8-[(2R,3S)-2-(Hydroxymethyl)-1-methyl-3-pyrrolidinyl]-, rel- (CAS 647019-54-3), molecular formula C21H20ClNO5 and molecular weight 401.84 g/mol, is a CATO reference standard with documented purity and traceability.
Owing to a flavonoid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution, 4H-1-benzopyran-4-one, 2-(2-chlorophenyl)-5,7-dihydroxy-8-[(2R,3S)-2-(Hydroxymethyl)-1-methyl-3-pyrrolidinyl]-, rel- is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 401.84 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.
This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.
As a certified reference material (CRM), 4H-1-benzopyran-4-one, 2-(2-chlorophenyl)-5,7-dihydroxy-8-[(2R,3S)-2-(Hydroxymethyl)-1-methyl-3-pyrrolidinyl]-, rel- 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 | C21H20ClNO5 |
| Molecular Weight | 401.84 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at room temperature, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, acetonitrile, DMSO, water (slightly soluble) |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 12.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related H Standards
- 16981-20-7 2H-1-Benzopyran-2-one, 5,7-dihydroxy-8-(3-methyl-2-butenyl)-6-(2-methyl-1-oxopropyl)-4-phenyl- 5,7-dihydroxy-8-(3-methylbut-2-enyl)-6-(2-methylpropanoyl)-4-phenyl-chromen-2-one Mesuol NSC130114 (CAS 16981-20-7)
- 2H-1-Benzopyran-2-one, 7-(2H-naphtho[1,2-d]triazol-2-yl)-3-phenyl- (CAS 3333-62-8)
- 4H-1-Benzopyran-4-one，3-(benzoyloxy)-2-phenyl- (CAS 22812-29-9)
- 2H-1-Benzopyran-6-carboxylic acid,2-(4,8-dimethyl-3,7-nonadienyl)-5- hydroxy-2,7-dimethyl- 82003-90-5 (CAS 82003-90-5)
- 38215-36-0 2H-1-Benzopyran-2-one, 3-(2-benzothiazolyl)-7-(diethylamino)- 3-(Benzothiazol-2-yl)-7-(diethylamino)-2-benzopyrone Coumarin 6 EINECS 253-830-2 NSC 290432 (CAS 38215-36-0)
- 77727-18-5 4H-1-Benzopyran-4-one, 2,3-dihydro-5,7-dimethoxy-8-(3-methyl-2-butenyl)-2-phenyl-, (2S)- (CAS 77727-18-5)
- 2H-1-Benzopyran-2-one, 7-(diethylamino)-3-(1-methyl-1H-benzimidazol-2-yl)- 41044-12-6 7-(Diethylamino)-3-(1-methyl-1H-benzimidazol-2-yl)-2H-chromen-2-one 7-(diethylamino)-3-(1-methylbenzimidazol-2-yl)chromen-2-one Coumarin 30 NSC290433 (CAS 41044-12-6)
- 4H-1-Benzopyran-4-one, 2-(2,4-dihydroxyphenyl)-3,7-dihydroxy-5-methoxy-8-[5-methyl-2-(1-methylethenyl)-4-hexenyl]-, (R)- (CAS 128879-52-7)
Recommended Standards
- 2-Oxo-2-phenylethyl 6-chloro-2-phenylquinoline-4-carboxylate (CAS 346639-79-0)
- Dimethyl 4-(5-(3-chlorophenyl)furan-2-yl)-2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylate (CAS 372976-49-3)
- (4Z)-1-(4-Chlorophenyl)-4-{[(2,4-dimethoxyphenyl)amino]methylidene}-3-ethoxy-4,5-dihydro-1H-pyrazol-5-one (CAS 338751-15-8)
- 4-((2-Chlorophenyl)diazenyl)-3-hydroxy-N-phenyl-2-naphthamide (CAS 6410-26-0)
- 2-(3-Chloro-2-fluoro-5-nitrophenyl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377611-03-3)
- (S)-2-((((9H-Fluoren-9-yl)methoxy)carbonyl)amino)-3-(2-fluorophenyl)-2-methylpropanoic acid (CAS 1172127-44-4)
- 4''-Butyl-[1,1':4',1''-terphenyl]-4-carbonitrile (CAS 66044-94-8)
- N-(2,5-dimethoxyphenyl)-1-(4-methoxybenzyl)-2-oxo-1,2-dihydropyridine-3-carboxamide (CAS 400077-80-7)
- Nonyl 8-((6-(heptadecan-9-yloxy)-6-oxohexyl)(2-hydroxyethyl)amino)octanoate (CAS 2089251-51-2)
- 4-Cyclopropoxy-N,6-dimethylpyridin-2-amine (CAS 1243319-04-1)
- 4-bromo-6-methoxy-1H-indole (CAS 393553-55-4)
- (E)-2-(9-Benzyl-9H-purin-6-yl)-N,N-diethylethenamine (CAS 920503-60-2)
- 1-(3-(5-Amino-1,3,4-Thiadiazol-2-Yl)Piperidin-1-Yl)-2,2,2-Trifluoroethanone (CAS 2007919-67-5)
- β-Bag Cell Peptide (Aplysia californica) (CAS 109024-47-7)
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