Isobutyl 4-oxopentanoate CAS 3757-32-2
| 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
Recommended for analytical method development and validation; each product is supplied with a full Certificate of Analysis (COA) ensuring ISO 17034 metrological traceability.
Isobutyl 4-oxopentanoate (CAS 3757-32-2) is a high-purity analytical reference standard with the molecular formula C39H70N7O17P3S and a molecular weight of 1034.00 g/mol.
Structurally, Isobutyl 4-oxopentanoate (C39H70N7O17P3S) contains a nitrogen-containing heterocyclic scaffold, an amide group, a sulfone group, a phosphate ester group, a hydroxyl group, an ether linkage. The molecule exhibits a degree of unsaturation (DBE) of 8.5, corresponding to approximately 8 ring(s) or double-bond equivalent(s). With a molecular weight of 1034.00 g/mol, it falls into the high-molecular-weight range. 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).
The assigned purity is verified by mass-balance and quantitative NMR (qNMR) approaches, with the expanded uncertainty reported at a 95% confidence level (k=2). Batch homogeneity and stability are independently assessed for every lot.
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)
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- 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)
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- 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)
- Deruxtecan (CAS 1599440-13-7)
- 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)
- 1-(Azetidin-3-yl)-4-(3-(trifluoromethyl)phenyl)piperazine trihydrochloride (CAS 1184993-45-0)
- 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)
- n-[(2,5-difluorophenyl)methyl]aniline (CAS 1096852-39-9)
- 2-Propanol, 1-[(2-aminoethyl)amino]-, homopolymer (CAS 68072-46-8)
- Polymyxin B nonapeptide TFA (CAS 2220175-42-6)
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