Isobutyl 2-(1-butyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate CAS 618078-05-0
| CAS No. | 618078-05-0 |
| Molecular Formula | C28H29N3O4S2 |
| Molecular Weight | 535.68 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO manufactures Isobutyl 2-(1-butyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate 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.
CATO supplies Isobutyl 2-(1-butyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 618078-05-0), a certified reference material (molecular formula C28H29N3O4S2, MW 535.68 g/mol) for analytical method development and quality control.
The molecular framework of Isobutyl 2-(1-butyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (C28H29N3O4S2) is characterized by a steroid core, an amide group, a sulfone group, a hydroxyl group, an ether linkage. In reversed-phase chromatography, its retention is governed primarily by the protonation state of its nitrogen-containing groups, which provides a practical basis for HPLC-UV/DAD or LC-MS method development. 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.
Physical & Chemical Properties
| Molecular Formula | C28H29N3O4S2 |
| Molecular Weight | 535.68 g/mol |
| 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 |
| Degree of Unsaturation (DBE) | 16.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1985 |
| Nitrogen Atoms | 3 |
| Sulfur Atoms | 2 |
Related Isobutyl Standards
- Isobutyl 7-methyl-3-oxo-2-(2-oxo-1-propylindolin-3-ylidene)-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 618078-19-6)
- Isobutyl 2-(1-allyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 618077-83-1)
- Isobutyl 2-(1-ethyl-2-oxoindolin-3-ylidene)-7-methyl-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 618078-08-3)
- Isobutyl 7-methyl-2-(1-methyl-2-oxoindolin-3-ylidene)-3-oxo-5-(thiophen-2-yl)-3,5-dihydro-2H-thiazolo[3,2-a]pyrimidine-6-carboxylate (CAS 618078-11-8)
- 3-Isobutyl-5-((3-(4-methoxy-2-methylphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-2-thioxothiazolidin-4-one (CAS 623933-10-8)
- Ethyl 2-(2-Isobutyl-6-quinolyloxy-8-p-toluenesulfonamido)acetate (CAS 316124-91-1)
- 2-((3-Isobutyl-4-oxo-3,4-dihydroquinazolin-2-yl)thio)-N-(4-(trifluoromethoxy)phenyl)acetamide (CAS 882083-32-1)
- 2-((4-Isobutyl-5-(3-(morpholinosulfonyl)phenyl)-4h-1,2,4-triazol-3-yl)thio)acetic acid (CAS 743457-07-0)
Recommended Standards
- 5-((2-(4-(2-Hydroxyethyl)piperazin-1-yl)-9-methyl-4-oxo-4H-pyrido[1,2-a]pyrimidin-3-yl)methylene)-3-(1-phenylethyl)-2-thioxothiazolidin-4-one (CAS 477734-59-1)
- 3-Hydroxymethyl Maraviroc-d6 (CAS 1217536-16-7)
- 4-(5-((3-(4-Isobutoxy-3-methylphenyl)-1-phenyl-1H-pyrazol-4-yl)methylene)-4-oxo-2-thioxothiazolidin-3-yl)butanoic acid (CAS 624724-16-9)
- 4-tert-Butyldimethylsilyloxy Nebivolol (Mixture of Diastereomers) (CAS 1287115-86-9)
- 3-Ethyl-3-isopropylindolin-2-one (CAS 797052-01-8)
- 1-(Bromomethyl)-1,3-dimethylcyclobutane (CAS 2106452-76-8)
- 7-Fluoro-1,6-naphthyridine-2-carboxylic acid (CAS 1574395-52-0)
- Degarelix Impurity 3 (CAS 2648486-37-5)
- Methyl 6-fluoro-2-methoxy-3-methylbenzoate (CAS 2113509-16-1)
- Ethyl 4-(4-cyanopiperidin-1-yl)-3-fluorobenzoate (CAS 570408-19-4)
- 8-Methyl-7-phenyl-[1,2,4]triazolo[1,5-c]pyrimidin-5-amine (CAS 88114-37-8)
- Parecoxib Impurity 42 (CAS CATO-C4X-159142)
- 2-Oxo-1,5,7,8-tetrahydro-2H-pyrano[4,3-b]pyridine-3-carbonitrile (CAS 27152-09-6)
- Pancreatic Polypeptide (rat) (CAS 90419-12-8)
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