1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(3-chloro-1-oxopropyl)oxime] CAS 320420-75-5
| CAS No. | 320420-75-5 |
| Molecular Formula | C18H12Cl4N2O3 |
| Molecular Weight | 446.11 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
The occurrence of 1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(3-chloro-1-oxopropyl)oxime] is closely related to a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution in its molecular formula, which determines its behaviour during synthesis, purification, or degradation.
1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(3-chloro-1-oxopropyl)oxime] (CAS 320420-75-5) is a high-purity analytical reference standard with the molecular formula C18H12Cl4N2O3 and a molecular weight of 446.11 g/mol.
Based on its molecular formula C18H12Cl4N2O3, 1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(3-chloro-1-oxopropyl)oxime] contains a steroid core, an amide group, a hydroxyl group, an ether linkage, chlorine substitution; these features give the compound characteristic absorption bands in UV spectroscopy. The molecular weight of 446.11 g/mol is directly relevant to the identification of the molecular ion in mass spectrometry. 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.
CATO manufactures 1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(3-chloro-1-oxopropyl)oxime] under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.
Physical & Chemical Properties
| Molecular Formula | C18H12Cl4N2O3 |
| Molecular Weight | 446.11 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor, low volatility) |
| Purity | 97%+ |
| Storage | Store in a cool place (≤25°C), protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in DMSO, DMF, methanol |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening; 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.) | 2025 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 2 |
Related H Standards
- 1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(2-chloroacetyl)oxime] (CAS 303998-56-3)
- 1H-indole, 6-bromo-3-iodo-1-(phenylsulfonyl)- (CAS 180633-66-3)
- 1H-Indole-5-carboxamide (CAS 68037-77-4)
- 144625-67-2 1H-Indole-3-carboxylic acid, 5-fluoro-2-methoxy-, (1-(2-((methylsulfonyl)amino)ethyl)-4-piperidinyl)methyl ester GR-125487 GR 125487 (CAS 144625-67-2)
- 1H-Indole-1-carboxylic acid, 5-[[4-[(1,1-dimethylethoxy)carbonyl]-1-piperazinyl]sulfonyl]-, 1,1-dimethylethyl ester 503045-76-9 L-1705 (CAS 503045-76-9)
- 1H-Indole-1-carboxylic acid, 2-borono-5-[(4-methyl-1-piperazinyl)sulfonyl]-, 1-(1,1-dimethylethyl) ester (CAS 519148-74-4)
- 1H-Indole-1-carboxylic acid, 5-[bis[(1,1-dimethylethoxy)carbonyl]amino]-2-borono-, 1-(1,1-dimethylethyl) ester (9CI) (CAS 863770-85-8)
- 1H-indole, 3-iodo-5-methoxy-1-(phenylsulfonyl)- (CAS 86335-42-4)
Recommended Standards
- 1H,1H,2H-Perfluoro-1-decene (CAS 21652-58-4)
- trans-[2-Bromomethyl-2-(2,4-dichlorophenyl)-1,3-dioxolan-4-yl]methyl Benzoate (CAS 61397-57-7)
- Brimonidine Impurity 33 (CAS CATO-C4X-156633)
- Ketoconazole impurity 34 (CAS CATO-C4X-147234)
- 1-(2,2-Difluoroethyl)-3-nitro-1h-pyrazole-5-carboxylic acid (CAS 1328640-79-4)
- 4-(Difluoromethoxy)-1-naphthaldehyde (CAS 842173-16-4)
- (3-Chloro-4-fluorophenyl)(4-(piperidin-1-ylmethyl)phenyl)methanone (CAS 898775-23-0)
- 4-Methyl-N'-(1-methyl-2,2-dioxido-1H-thieno[3,2-c][1,2]thiazin-4(3H)-ylidene)benzohydrazide (CAS 341968-11-4)
- 2-Phenylethyl Acetate (CAS 103-45-7)
- 2-Methoxy-4-methylcyclohex-2-en-1-one (CAS 90414-00-9)
- 1-(1-phenylcyclopentyl)ethan-1-one (CAS 4046-09-7)
- Methyl 6-piperidin-1-yl-pyrazine-2-carboxylate (CAS 1416374-19-0)
- Peramivir Impurity 83 (CAS CATO-C4X-183383)
- Vasonatrin Peptide (VNP) trifluoroacetate salt (CAS 141676-35-9)
Why CATO?
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