1-(3-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic Acid Methyl Ester CAS 1568-36-1
| CAS No. | 1568-36-1 |
| Molecular Formula | C20H18ClNO4 |
| Molecular Weight | 371.81 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures 1-(3-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic Acid Methyl Ester 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.
1-(3-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic Acid Methyl Ester (CAS 1568-36-1), molecular formula C20H18ClNO4 and molecular weight 371.81 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, 1-(3-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic Acid Methyl Ester is typically pale yellow to yellow crystalline powder. Its solid-state physicochemical attributes — including a molecular weight of 371.81 g/mol — guide the selection of appropriate sample preparation and analytical techniques. The presence of an aromatic ring or conjugated system gives the compound characteristic absorption bands in the UV-Vis region, making it well suited to UV or diode-array detection (DAD).
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 | C20H18ClNO4 |
| Molecular Weight | 371.81 g/mol |
| Appearance | Pale yellow to yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, 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.) | 1957 |
| Halogen Content | Cl-containing |
| Nitrogen Atoms | 1 |
Related Chlorobenzoyl Standards
- 1-(2-Chlorobenzoyl)-5-methoxy-2-methyl-1H-indole-3-acetic Acid Methyl Ester (CAS 1568-35-0)
- N-(4-Chlorobenzoyl)-2-(2,4-dichlorophenoxy)ethanehydrazonamide (CAS 338395-78-1)
- 2-{[4-(2-Chlorobenzoyl)piperazin-1-yl]carbonyl}benzoic acid (CAS 896508-49-9)
- (2E)-2-[5-(4-Chlorobenzoyl)thiophen-2-yl]-3-(3-methylthiophen-2-yl)prop-2-enenitrile (CAS 338966-69-1)
- N-(4-Chlorobenzoyl)-2-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)oxy]acetohydrazide (CAS 339105-83-8)
- 339010-20-7 4-{[(4-chlorobenzoyl)oxy]imino}-1-(4-nitrophenyl)piperidine KS-00003CG1 (CAS 339010-20-7)
- N-(2-(2-chlorobenzoyl)-3-oxo-2,3-dihydro-1,2,4-thiadiazol-5-yl)-4-methylbenzamide (CAS 478031-94-6)
- 4-({[(4-chlorobenzoyl)amino]carbonyl}amino)-3-fluorobenzene-1-sulphonyl fluoride (CAS 284674-50-6)
Recommended Standards
- 3-(n-Benzyl4-chloro-2-fluorobenzenesulfonamido)propanoic acid (CAS 794584-40-0)
- (2S,4S)-1-(tert-Butoxycarbonyl)-4-(2-chloro-4-methoxyphenoxy)-2-pyrrolidinecarboxylic acid (CAS 1354486-68-2)
- 4-chloro-2-{[(9H-fluoren-9-ylmethoxy)carbonyl]amino}pent-4-enoic acid (CAS 2059934-88-0)
- 3-(4-Chlorophenyl)-9-(3-hydroxypropyl)-9,10-dihydro-4H,8H-chromeno[8,7-e][1,3]oxazin-4-one (CAS 1010933-62-6)
- 2-(4-Ethylphenyl)ethene-1-sulfonyl chloride (CAS 1158094-54-2)
- Phenoperidine Hydrochloride (CAS 3627-49-4)
- 2-((5-(1,3-Dioxoisoindolin-2-yl)-1,3,4-thiadiazol-2-yl)thio)acetic acid (CAS 354126-22-0)
- (2S,4S)-Methyl 2-amino-4-phenylhexanoate (CAS 1043500-17-9)
- n-Cycloheptyl-1h-1,2,3-triazole-4-carboxamide (CAS 1311952-63-2)
- 1-((1,7,7-Trimethylbicyclo[2.2.1]Heptan-2-yl)amino)propan-2-ol (CAS 1250722-08-7)
- 6-Fluoro-2-methyl-1H-indole-3-carbaldehyde (CAS 933747-88-7)
- 4-(4-Chloro-3-fluoro-2-hydroxyphenyl)-4-oxobutanoic acid (CAS 1208265-79-5)
- 2-Methylimidazo[5,1-b]thiazole (CAS 165666-88-6)
- Tirzepatide Impurity 18 (CAS CATO-C4X-324018)
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 18665070610 / Nicole.chen@cato-chem.com