Isobutyl 4-oxopentanoate CAS 3757-32-2
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 3757-32-2 |
| Molecular Formula | C39H70N7O17P3S |
| Molecular Weight | 1034.00 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
Isobutyl 4-oxopentanoate (CAS 3757-32-2) reference standard, produced by CATO (ISO 17034 / CNAS / ANAB accredited). Molecular formula: C39H70N7O17P3S. Molecular weight: 1034.00 g/mol. Trusted by 10,000+ laboratories worldwide for pharmaceutical analysis and QC.
Physical & Chemical Properties
| Molecular Formula | C39H70N7O17P3S |
| Molecular Weight | 1034.00 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) | 8.5 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1958 |
| Nitrogen Atoms | 7 |
| Sulfur Atoms | 1 |
Related Isobutyl Standards
- 1-(3-(5-Isobutyl-6-oxo-1,6-dihydropyrazin-2-yl)propyl)guanidine (CAS 34098-41-4)
- 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)
- 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)
Recommended Standards
- Tris(2-octyldodecyl) 2-hydroxypropane-1,2,3-tricarboxylate (CAS 126121-35-5)
- S-(2-(3-((2R)-4-(((((((2R,3S,4R,5R)-5-(6-Amino-9H-purin-9-yl)-4-hydroxy-3-(phosphonooxy)tetrahydrofuran-2-yl)methoxy)(hydroxy)phosphoryl)oxy)(hydroxy)phosphoryl)oxy)-2-hydroxy-3,3-dimethylbutanamido)propanamido)ethyl) octadecanethioate (CAS 362-66-3)
- 4',4''''-((4,4-Di(octan-3-yl)-4H-silolo[3,2-b:4,5-b']dithiophene-2,6-diyl)bis(4,1-phenylene))di-2,2':6',2''-terpyridine (CAS 1800104-25-9)
- 2-Methyl-3-(5-methylfuran-2-carboxamido)propanoic acid (CAS 1250364-01-2)
- N,N-dimethyl-1,2,3-thiadiazole-4-carboxamide (CAS 1465212-96-7)
- 4-Piperidinol, 3-fluoro-4-(trifluoromethyl)-, (3R,4S)- (CAS 1932520-09-6)
- 4-(Trifluoromethyl)benzo[d]thiazole (CAS 131106-69-9)
- 1-(3-(2-(4-(Benzyloxy)phenoxy)ethoxy)phenyl)ethan-1-one (CAS 937601-88-2)
- Buflomedil impurity (o-desmethyl) (CAS 70585-57-8)
- Polymyxin B nonapeptide TFA (CAS 2220175-42-6)
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