1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(2-chloroacetyl)oxime] CAS 303998-56-3
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 303998-56-3 |
| Molecular Formula | C17H10Cl4N2O3 |
| Molecular Weight | 432.08 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(2-chloroacetyl)oxime] (CAS 303998-56-3), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C17H10Cl4N2O3. Molecular weight: 432.08 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C17H10Cl4N2O3 |
| Molecular Weight | 432.08 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-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, 2-borono-5-[(4-methyl-1-piperazinyl)sulfonyl]-, 1-(1,1-dimethylethyl) ester (CAS 519148-74-4)
- 1H-Indole-2,3-dione, 5-chloro-1-[(3,4-dichlorophenyl)methyl]-, 3-[O-(3-chloro-1-oxopropyl)oxime] (CAS 320420-75-5)
- 1H-indole, 3-iodo-5-methoxy-1-(phenylsulfonyl)- (CAS 86335-42-4)
- 1H-indole, 6-bromo-3-iodo-1-(phenylsulfonyl)- (CAS 180633-66-3)
- 1H-indole, 4-fluoro-3-iodo-1-(phenylsulfonyl)- (CAS 582305-42-8)
- 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)
Recommended Standards
- 2,2-Difluoro-2-(1,1,2,2-tetrafluoro-2-(perfluorobutoxy)ethoxy)ethan-1-ol (CAS 152914-73-3)
- N-(5-bromo-2-ethoxybenzyl)-4-iodoaniline (CAS 477887-04-0)
- 3,5-Dibromo-4-((6-oxo-1,6-dihydropyridazin-3-yl)oxy)phenethyl acetate (CAS 920509-41-7)
- 3-(4-Fluoro-2-methoxyphenyl)-5-methylisoxazole-4-carboxylic acid (CAS 1370418-85-1)
- 4-Bromo-6-chloro-benzo[d]isoxazole (CAS 1427369-08-1)
- (4-Aminophenyl)(3-bromophenyl)methanone hydrochloride (CAS 1803581-62-5)
- Methyltris(4-fluorophenyl)phosphonium iodide (CAS 18606-51-4)
- N-(3-chloro-4-fluorophenyl)-N-[(3-methylthien-2-yl)methyl]amine (CAS 851457-05-1)
- 2-(((6-Chloropyridin-3-yl)methyl)(methyl)amino)acetic acid (CAS 1353953-01-1)
- Semaglutide Impurity 186 (CAS CATO-C4X-2226186)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com