3-(Isobutyrylamino)benzoic acid CAS 28533-44-0
| CAS No. | 28533-44-0 |
| Molecular Formula | C11H13NO3 |
| Molecular Weight | 207.23 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
3-(Isobutyrylamino)benzoic acid (CAS 28533-44-0) is a high-purity analytical reference standard with the molecular formula C11H13NO3 and a molecular weight of 207.23 g/mol.
3-(Isobutyrylamino)benzoic acid (C11H13NO3) contains an amino-acid-derived structure, an amide group, a hydroxyl group, an ether linkage. It is notably hygroscopic, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. 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).
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.
As a certified reference material (CRM), 3-(Isobutyrylamino)benzoic acid meets the metrological traceability requirements of ISO/IEC 17025 laboratories. Batch-to-batch consistency is monitored via control charts to guarantee comparable assigned values across lots.
Physical & Chemical Properties
| Molecular Formula | C11H13NO3 |
| Molecular Weight | 207.23 g/mol |
| Appearance | Off-white to pale yellow crystalline powder |
| Purity | 97%+ |
| Storage | Store at 2-8°C, protect from light, keep sealed and dry |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Light-sensitive; avoid direct strong light; Hygroscopic; reseal immediately after opening |
| Degree of Unsaturation (DBE) | 6.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 1965 |
| Nitrogen Atoms | 1 |
Related Isobutyrylamino Standards
- 4-(Isobutyrylamino)benzoic acid (CAS 28547-07-1)
- (2-Isobutyrylamino-acetylamino)-acetic acid (CAS 436096-89-8)
- 3-(Isobutyrylamino)-4-methylbenzoic acid (CAS 915921-46-9)
- (E)-4-[3-(Isobutyrylamino)anilino]-4-oxo-2-butenoic acid (CAS 940211-58-5)
- (E)-4-[4-(Isobutyrylamino)anilino]-4-oxo-2-butenoic acid (CAS 940210-86-6)
- 3323AF 4-[4-(Isobutyrylamino)anilino]-4-oxobutanoic acid 925050-77-7 C14H18N2O4 (CAS 925050-77-7)
Recommended Standards
- 3-(Hydroxyamino)-3-imino-N-(phenylmethyl)propanamide (CAS 733794-89-3)
- 3-(Piperidin-1-yl)pyrazine-2-carboxylic acid (CAS 342425-61-0)
- 3-(Hydroxyamino)-3-imino-N-(4-methylphenyl)propanamide (CAS 61239-35-8)
- 3-(propylcarbamoyl)benzoic acid (CAS 940879-50-5)
- 4-(3,4-Difluorophenoxy)-3-methylaniline (CAS 946742-17-2)
- 5-Amino-3-bromo-N-(3-chloro-4-fluorophenyl)-1-methyl-1H-pyrazole-4-carboxamide (CAS 2417111-98-7)
- 2-(5-Chlorofuran-3-yl)-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (CAS 2377991-42-7)
- (S)-5-(3-Methylpentyl)isoxazole (CAS 41248-87-7)
- Ethyl N-(3,4,5,6-tetrahydro-2H-azepin-7-yl)-glycinate (CAS 1174374-29-8)
- (2,3,5,6-tetrafluoro-4-pyridinyl)acetic acid (CAS 65697-73-6)
- Sodium (3,4,5-trimethoxybenzoyloxy)methanesulfinate (CAS 2209100-02-5)
- 4-(Benzylamino)phenol (CAS 103-14-0)
- 2-Chloro-3-(2-oxopropyl)quinazolin-4(3H)-one (CAS 62481-11-2)
- Hexapeptide-10 (CAS 146439-94-3)
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